Patent Application
20130033566
The present application is based upon and claims the benefit of priority under 35 U.S.C. §119 of Japanese Priority Patent Application JP 2011-168862 filed in the Japanese Patent Office on Aug. 2, 2011, the entire contents of which are hereby incorporated by reference.
The present technology relates to an image processing device, and more particularly relates to an image processing device which handles panorama images, a control method thereof, and a program encoded on a non-transitory computer readable medium causing a computer to execute the method.
As of recent, imaging apparatuses such as digital still cameras or the like which generate an image (image data) by imaging a subject such as scenery or the like, and record the generated image as an image file, have come into widespread use. Also, there have been proposed imaging apparatuses which generate multiple images continuously in time sequence, and use the multiple generated images to generate a panorama image including the subject over a relative wide range.
For example, there has been proposed an imaging apparatus which generates multiple image while moving the imaging apparatus along an arc of which the axis is behind the imaging apparatus (e.g., the position of the photographer), and uses the multiple images to generate a panorama image (e.g., Japanese Unexamined Patent Application Publication No. 2009-268037).
According to the above-described related art, a panorama image imaging operation can be performed by the user moving the imaging apparatus along an arc while holding the imaging apparatus in the hand, so the user can perform the imaging operation in a relatively easy manner.
For example, in the event of performing a panorama image imaging operation with the above related art, the user visually confirms the subject of the panorama image by looking around, and then performs a start operation for the imaging operation. However, since a panorama image is an image including a subject over a relatively wide range, it can be expected that just the user visually confirming before the start operation for the imaging operation may not yield the imaging range which the user has intended. Accordingly, in order to generate a panorama image according to user preferences, it is important for a panorama image imaging range according to user preferences to be able to be easily decided.
It has been found desirable to enable a panorama image imaging range according to user preferences to be easily decided.
The present invention broadly comprises an image processing device, a control method thereof, and a program encoded on a non-transitory computer readable medium to cause a computer to execute the control method. In one embodiment, the image processing device includes: an operation accepting unit configured to accept a deciding operation to decide a reference position in a panorama image after starting an imaging operation of the panorama image using a plurality of image sequentially generated by an imaging unit which consecutively images subjects in time sequence, before starting the imaging operation of the panorama image; and a control unit configured to control deciding of an imaging range of the panorama image in the subject, based on the decided reference position. Accordingly, accepting the deciding operation to decide the reference position in the panorama image after starting the panorama image imaging operation, before starting of the panorama image imaging operation, has the effect of deciding the panorama image imaging operation based on the decided reference position.
In another embodiment, the apparatus includes a reference position receiving unit configured to receive intermediate or end panorama reference position information input by a user, and a control unit configured to control an imaging device to begin generating a plurality of images to be used to generate a panoramic image based on the intermediate or end panorama reference position information input by the user after the reference position receiving unit receives the intermediate or end panorama reference position information.
In a further embodiment, the apparatus includes a reference position receiving unit configured to receive panorama reference position information for a plurality of reference points input by a user, and a control unit configured to control an imaging device to begin generating a plurality of images to be used to generate a panoramic image based on the panorama reference position information for the plurality of reference points input by the user after the reference position receiving unit receives the panorama reference position information for the plurality of reference points.
In still a further embodiment, the apparatus includes a reference position receiving unit configured to receive an end panorama reference position image, and a control unit configured to control an imaging device to begin generating a plurality of images to be used to generate a panoramic image based on the end panorama reference position image input by the user after the reference position receiving unit receives the end panorama reference position image, and to control the imaging device to end generating the plurality of images when a current image matches the end panorama reference position image.
The image processing device may further include a display control unit configured to display, on an image generated by the imaging unit, an operation supporting screen representing the decided imaging range, during the imaging operation of the panorama image by the imaging unit. This has the effect of displaying, on an image generated by the imaging unit, an operation supporting screen representing the decided imaging range, during the imaging operation of the panorama image by the imaging unit.
The display control unit may display, of the subject included in images generated by the imaging unit, an image to identify a subject included in the decided imaging range, on the display unit as the operation supporting screen. This has the effect of displaying, of the subject included in images generated by the imaging unit, an image (operation supporting image) to identify a subject included in the decided imaging range.
The image processing device may further include an attitude detecting unit configured to detect change in the attitude of the imaging apparatus, with the display control unit changing the display form of the operation supporting screen based on the detected attitude change, which is displayed. This has the effect of changing the display form of the operation supporting screen based on the detected attitude change, which is displayed.
The display control unit may display an image representing the outline of a generally rectangular form corresponding to the panorama image, on the display unit as the operation supporting screen. This has the effect of displaying an image (operation supporting image) representing the outline of a generally rectangular form corresponding to the panorama image.
The operation accepting unit may accept setting operations to set the longitudinal direction size of the imaging range of the panorama image, with the control unit deciding the imaging range of the panorama image based on the set size and the decide reference position. This has the effect of deciding the panorama image imaging range based on the set size and decided reference position.
In a case where the panorama image is generated using a plurality of images generated by the imaging unit during turning motion of the imaging apparatus in a particular direction on an axis which is a position of the imaging apparatus or a position near the imaging apparatus, the operation accepting unit may accept the deciding operation deciding an end position of the turning movement to be the reference position; with the control unit determining whether or not an image generated by the imaging unit at the time of the deciding operation being accepted, and an image generated by the imaging unit after change in attitude of the imaging apparatus after the deciding operation, match, and in the event that these images match, effecting control to stop the imaging operation of the panorama image by the imaging unit. This has the effect of determining whether an image generated by the imaging unit at the time of the deciding operation deciding the end position (reference position) of the turning movement of the imaging apparatus being accepted, and an image generated by the imaging unit after change in attitude of the imaging apparatus after the deciding operation, match, and in the event that these images match, to stop the imaging operation of the panorama image.
In the event that the panorama image is generated using a plurality of images generated by the imaging unit during turning motion of the imaging apparatus in a particular direction on an axis which is a position of the imaging apparatus or a position near the imaging apparatus, the operation accepting unit may accept the deciding operation deciding an intermediate position of the turning movement to be the reference position; with the control unit deciding the start position and end position of imaging operation of the panorama image by the imaging unit, based on the decided intermediate position. This has the effect that, in the event that a deciding operation deciding the intermediate position (reference position) of the turning motion of the imaging apparatus is accepted, the start position and end position of the panorama image imaging operation are decided based on the decided intermediate position.
The image processing device may further include: an attitude detecting unit configured to detect change in the attitude of the imaging apparatus; wherein, in the event that the turning motion of the imaging apparatus in a particular direction on an axis which is a position of the imaging apparatus or a position near the imaging apparatus is detected as the attitude change, the control unit decides the imaging range of the panorama image such that the particular direction is the longitudinal direction thereof, and in the event that the turning motion of the imaging apparatus in an orthogonal direction orthogonal to the particular direction on an axis which is a position of the imaging apparatus or a position near the imaging apparatus is detected as the attitude change, the control unit decides the imaging range of the panorama image such that the orthogonal direction is the longitudinal direction thereof. This has the effect that, in the event that turning motion of the imaging apparatus in a particular direction is detected, a panorama image imaging range with the particular direction as the longitudinal direction is decided, and in the event that turning motion of the imaging apparatus in an orthogonal direction is detected, a panorama image imaging range with the orthogonal direction as the longitudinal direction is decided.
The image processing device may further include: a first imaging unit; and a second imaging unit disposed so as to have an optical axis direction different from the optical axis direction of the imaging unit; wherein, in the event that the panorama image is generated using a plurality of images generated by the imaging unit during turning motion of the imaging apparatus in a particular direction on an axis which is a position of the imaging apparatus or a position near the imaging apparatus, the operation accepting unit accepts the deciding operation deciding an intermediate position of the turning movement to be the reference position; and wherein, in the event that the deciding operation is accepted in a state where the optical axis direction of the second imaging unit faces the start position or end position in the imaging operation of the panorama image, the control unit decides the imaging range of the panorama image based on the positional relation between the first imaging unit and the second imaging unit. This has an effect that, in the event that a deciding operation deciding the intermediate position (reference position) of turning motion of the imaging apparatus in a state with the optical axis direction of the second imaging unit toward the start position or end position in the panorama image imaging operation, the panorama image imaging range is decided based on the placement relation between the first imaging unit and the second imaging unit.
The second imaging unit may generate a plurality of images under exposure conditions different from exposure conditions of the first imaging unit during imaging operations of the panorama image; with a plurality of images generated by the first imaging unit, and a plurality of images generated by the second imaging unit, being combined to generated the panorama image, in which at least a partial region has an expanded dynamic range. This has the effect that, by combining multiple images generated by the first imaging unit, and multiple images generated by the second imaging unit, a panorama image is generated in which at least a partial region has an expanded dynamic range.
According to the present technology, an excellent advantage can be had in that a panorama image imaging range according to user preferences can be easily decided.
The following is a description of embodiments for carrying out the present technology (hereinafter referred to as “embodiments”). Description will be made in the following order.
1. First Embodiment (example of deciding imaging range of panorama image based on a reference position in the panorama image decided by user operations)
2. Second Embodiment (example of deciding ending timing of imaging operation of panorama image based on matching processing using a reference position in the panorama image decided by user operations)
3. Third Embodiment (example of deciding intermediate position in panorama image as reference position)
4. Fourth Embodiment (example of performing imaging operation of panorama image using imaging apparatus having multiple imaging units)
The imaging apparatus 100 includes a lens unit 111, an imaging device 112, an image processing unit 113, an image combining unit 120, a recording control unit 130, a recording medium 140, an attitude detecting unit 150, a control unit 160, a display control unit 170, a display unit 180, and an operation accepting unit 190. The imaging apparatus 100 can be realized by a digital still camera which is capable of generating multiple images (image data) by imaging a subject, for example, and performing various types of image processing regarding these multiple images.
The lens unit 111 is configured of multiple lenses which collect light from the subject (zoom lens, focusing lens, etc.), and supplies the light from the subject that has been input via these lenses and an iris to the imaging device 112.
Based on the control of the control unit 160, the imaging device 112 converts the incident light form the subject to generate an image (image data), and the generated image is supplied to the image processing unit 113. Specifically, an optical image of the subject input via the lens unit 111 is imaged on the imaging face of the imaging device 112, and an image (image data) is generated by the imaging device 112 performing an imaging operation in this state. Also, in the event that a panorama image imaging mode has been set, the imaging device 112 sequentially generates multiple images by consecutively imaging the subject in time sequence, and supplies the multiple imaged images to the image processing unit 113. Examples of the imaging device 112 which can be used include a CCD (Charge Coupled Device), a CMOS (Complementary Metal Oxide Semiconductor), or the like.
Based on the control of the control unit 160, the image processing unit 113 performs various types of image processing based on the image (image data) generated by the imaging device 112, and supplies the image (image data) which has been subjected to the image processing to the image combining unit 120 and display control unit 170.
The image processing unit 113 temporarily holds the image (image data) generated by the imaging device 112 in image memory (not shown) for example, and performs image processing on the image held therein. The image memory is configured of DRAM (Dynamic Random Access Memory), for example.
For example, the image processing unit 113 performs image processing for display regarding the image (image data) generated by the imaging device 112, and outputs the image subjected to this image processing to the display control unit 170 so as to be displayed on the display unit 180. Also, in the event that the panorama image imaging mode has been set, the image processing unit 113 perform image processing for panorama image regarding the image (image data) generated by the imaging device 112, and outputs to the image combining unit 120.
Also, in the event that the panorama image imaging mode has been set, the image processing unit 113 detects the amount of movement and the direction of movement between images adjacent on the temporal axis, for the images held in the image memory (not shown). The image processing unit 113 then outputs information relating to the amount of movement and the direction of movement (movement information) that has been detected to the image combining unit 120 and control unit 160. For example, the image processing unit 113 performs matching processing between the pixels making up the two adjacent images (i.e., matching processing to distinguish imaging regions of the same subject), and calculates the number of pixels for the movement between the images. In the matching processing, processing is performed assuming that the subject is basically still. Note that in the event that the subject includes moving bodies, motion vectors which differ from the motion vector of the overall image are detected, and the motion vectors corresponding to these moving bodies are processed as being exempt from detection. That is to say, only a motion vector (global motion vector, also abbreviated to “GMV”) corresponding to the motion of the overall image occurring due to motion of the imaging apparatus 100 is detected.
Based on the control of the control unit 160, the image combining unit 120 generates a panorama image using the multiple images supplied from the image processing unit 113, and supplies the generated panorama image to the recording control unit 130. For example, the image combining unit 120 temporarily holds the multiple images supplied from the image processing unit 113 in image memory (not shown), and generates a panorama image using these multiple images that are held.
In another embodiment, the apparatus 100 is in communication with a server, and transmits the multiple images supplied from the image processing unit 113 to the server. The server then generates the panoramic image and sends the panoramic image to apparatus 100. The apparatus 100 may be a mobile phone in such an embodiment.
Also, based on the analysis results output from the control unit 160 (the analysis results of amount in change of the attitude of the imaging apparatus 100), the image combining unit 120 calculates the regions to be combined in each of the multiple images held in the image memory (not shown). The image combining unit 120 then extracts images from the regions to be combined of each of the multiple images, and generates a panorama image by combining these extracted images. In this case, the image combining unit 120 overlays and combines the extracted images based on the movement information (amount of movement and the direction of movement) output from the image processing unit 113.
Under control of the control unit 160, the recording control unit 130 performs control to record the image (image data) subjected to image processing by the image processing unit 113 in the recording medium 140. Also, in the event that the panorama image imaging mode has been set, the recording control unit 130 records the panorama image (image data) generated by the image combining unit 120 in the recording medium 140.
The recording medium 140 is a device which records images subjected to image processing by the image processing unit 113 and panorama images generated by the image combining unit 120 as image files (image contents), under control of the recording control unit 130. For example, various types of data such as JPEG format image data or the like are recorded in the recording medium 140. The recording medium 140 may be built into the imaging apparatus 100, or may be detachable from the imaging apparatus 100. Examples of the recording medium 140 which can be used include various types of recording media such as semiconductor memory, optical recording media, magnetic disks, HDD (Hard Disk Drive), and so forth. Note that examples of optical recording media include recordable DVDs (Digital Versatile Disk), recordable CDs (Compact Disc), Blu-ray discs (registered trademark), and so forth.
The attitude detecting unit 150 detects change in the imaging apparatus 100 by detecting acceleration, motion, tile, and the like of the imaging apparatus 100, and outputs attitude information relating to change in attitude that has been detected to the control unit 160. An example of the attitude detecting unit 150 which can be used is a gyro sensor. This gyro sensor detects the angular acceleration of the imaging apparatus 100, whereby change in attitude of the imaging apparatus 100 is detected. Note that an arrangement may be made where a sensor other than a gyro sensor (e.g., an acceleration sensor) is used to detect the acceleration, motion, tilt, and so forth of the imaging apparatus 100, so as to detect the attitude and the change thereof of the imaging apparatus 100.
Under control of the control unit 160, display control unit 170 displays various types of images on the display unit 180. For example, the display control unit 170 displays the image supplied from the image processing unit 113 as a display image (e.g., a live view image (also called “LV image”)) on the display unit 180. The display control unit 170 displays various setting screens (e.g., an image size setting screen 300 shown in
For example, while performing a panorama image imaging operation, the display control unit 170 overlaps an operation supporting image representing the imaging range of the panorama image upon an image supplied from the image processing unit 113 (e.g., LV image). This operation supporting image is an image for identifying, out of the subjects included in an LV image, an image of a subject included in the imaging range of the panorama image (e.g., an image representing a generally rectangular shape corresponding to the panorama image) as shown in
The display unit 180 is a display unit which displays various types of images under control of the display control unit 170. The display unit 180 sequentially displays images generated by the imaging device 112 as LV images. Note that an example of the display unit 180 which can be used is a display panel such as an organic EL (Electro Luminescence) panel or the like. Also, a touch panel whereby the user can perform operations by bringing his/her fingers into contact or in close proximity to the display screen thereof may be used, as shown in
The operation accepting unit 190 is an operation accepting unit which accepts operation input from user operations, and outputs operation signals corresponding to the accepted operation input to the control unit 160. The operation accepting unit 190 includes operating members such as a shutter button 191 and a dial 192 and so forth. As shown in
The control unit 160 controls the members of the imaging apparatus 100 based on the operating signals from the operation accepting unit 190 and the attitude information from the attitude detecting unit 150. For example, in the event that an imaging mode setting operation has been accepted by the operation accepting unit 190, the control unit 160 sets the imaging mode corresponding to that setting operation. Note that with the first embodiment of the present technology, a case will be described in which the panorama image imaging mode is set to generate a panorama image, as an example. Also, in the event that a setting operation for image size (shown in
Also, based on the attitude information output from the attitude detecting unit 150 the control unit 160 analyzes the amount of change of attitude of the imaging apparatus 100 (direction of movement, amount of movement, etc.), and outputs the analysis results thereof to the image combining unit 120 and the display control unit 170.
Also, in the event that a deciding operation to decide a reference position (e.g., end position) has been accepted by the operation accepting unit 190, the control unit 160 effects control to decide the imaging range of the panorama image based on the decided reference position. As shown in
The imaging apparatus 100 has a lens unit 111, shutter button 191, dial 192, and input/output panel 200. Note that while the imaging apparatus 100 has other operating members such as a power switch, mode switchover switch, zoom button, and so forth, illustration and description thereof will be omitted here.
The shutter button 191 is a button pressed by the user at the time of recording an image (image data) generated by the imaging device 112 as an image content. For example, in a case where a still image imaging mode has been set to record a still image, and the shutter button 191 is half-pressed, focusing control is effected to perform autofocusing. Also, in the event that the shutter button 191 is fully pressed, the focus control is effected, and the image generated by the imaging device 112 at the time of fully pressing is recorded in the recording medium 140 as an image file (still image file). Pressing operations of the shutter button 191 in the event that the panorama image imaging mode has been set will be described in detail with reference to
The dial 192 is a dial used to perform various types of adjustment or the like. For example, the dial 192 is operated to set the imaging range (image size) of a panorama image.
The input/output panel 200 displays various types of images, and also accepts operation input from the user by detecting touch operations on the input/output panel 200. The input/output panel 200 is realized by a touch panel, for example. The input/output panel 200 corresponds to the display unit 180 and operation accepting unit 190 shown in
Note that with the description of the first embodiment of the present technology, a rotating operation where the imaging apparatus 100 is rotated in a particular direction (e.g., horizontal direction, vertical direction) with the current position of the imaging apparatus 100 (or a position nearby the imaging apparatus 100 (e.g., a position behind)) as an axis will be called a “swing operation”. Also, the operation direction thereof will be called “swing direction”. Such rotation of apparatus 100 may be performed by the user, by another apparatus attached to the apparatus 100, or by a rotary actuator included in apparatus 100.
The image size setting screen 300 is a screen displayed on the input/output panel 200 at the time of setting the imaging range (image size) of a panorama image. For example, the image size setting screen 300 is displayed immediately following performing a setting operation for the panorama image imaging mode. Also, the imaging range (image size) of the panorama image set at the image size setting screen 300 is the imaging range (image size) in the swing direction of the imaging apparatus 100.
The image size setting screen 300 is provided with an image size specifying bar 301, a specified position identifier 302, an OK button 303, and a return button 304.
The image size specifying bar 301 is a bar used to specify the panorama image imaging range (image size), and is displayed with the specified position identifier 302 displayed thereupon. For example, in the event that up to 360° can be specified as the panorama image imaging range (image size), “0°” is displayed at one end of the image size specifying bar 301 and “360°” at the other end thereof. Also, numerical values (e.g., 60°, 120°, and so on) are displayed at fixed intervals (e.g., at 60° intervals) are displayed on the image size specifying bar 301.
The panorama image imaging range (image size) can be specified by the user moving the specified position identifier 302 along the image size specifying bar 301 to the desired position. This moving operation of the specified position identifier 302 can be performed by operating the dial 192, or a touch operation on the input/output panel 200, for example.
The OK button 303 is a button pressed after a specification operation has been made to specify the panorama image imaging range (image size) to OK what has been specified. Also, information (image size information) relating to the panorama image imaging range (image size) decided by the operation of pressing the OK button 303 is output to the control unit 160 and held.
The return button 304 button is a button pressed in the case of returning to the display screen displayed immediately before, for example.
Note that with this example, an example is illustrated of specifying the image size using the image size specifying bar 301, but the image size may be specified by button pressing operations, or input operations in which numerical values are input, for example. For example, a selecting operation may be made in which the user selects a desired image size from multiple types of image sizes (e.g., image size button pressing operation). Also, the image size may be set by the user performing an input operation (e.g., input operation of numerical values of the image size (angle)).
Also, with this example, an example is illustrated of specifying the panorama image imaging range (image size) by user operations, but the imaging range may be set beforehand. For example, 180° may be set as a reference size.
Next, a case of performing an imaging operation using the imaging apparatus 100 will be described.
In order to perform such an imaging operation, the user 420 has to look around the place 400, comprehend the imaging range of the panorama image, and start the imaging operation. However, it can be expected to be difficult to look around the place 400 and accurately comprehend the imaging range of the panorama image visually. Also, in the event that accurately comprehending the imaging range of the panorama image is difficult, the panorama image which the user 420 desires (a panorama image including the buildings 401 and 402 and the large tree 403) may not be generated.
Now, with the first embodiment of the present technology, an example will be illustrated where the deciding operation to decide the reference position in the panorama image after the panorama image imaging operation has started, is accepted before starting the panorama image imaging operation, and the panorama image imaging range is decided based on the decided reference position.
The message display region 311 is a region where messages for supporting operations performed by the user 420 are displayed. A message prompting the user to decide the end position of the panorama image imaging operation, for example, is displayed on the message display region 311.
For example, we will assume a case where the user 420 has set the panorama image imaging mode. For example, upon turning the power of the imaging apparatus 100 on, the imaging apparatus 100 starts up, and an LV image is displayed on the input/output panel 200. The 420 decides the end position (the position corresponding to the right end of the panorama image) out of the imaging range corresponding to the panorama image, while viewing the LV image displayed on the input/output panel 200. For example, in the case of deciding an imaging range including the large tree 403 as the end position as shown in
For example, let us assume a case where the user 420 has full-pressed the shutter button 191 in the state shown in
The message display region 316 displays a message to the effect that the end position of the panorama image imaging operation has been decided, and a message prompting the user to move the imaging apparatus 100 to the start position of the panorama image imaging operation.
The operation supporting images 317 and 318 are images for supporting user operations relating to the panorama image imaging operation (swing operation of the imaging apparatus 100). For example, images for identifying subjects included in the panorama image imaging range (dotted lines representing a generally rectangular outline corresponding to the panorama image) are displayed as the operation supporting images 317 and 318.
Now, at the time of deciding the end position of the panorama image imaging operation, the swing direction (horizontal direction or vertical direction) of the imaging apparatus 100 is undecided, so the operation supporting images 317 and 318 alone are displayed without displaying operation supporting images corresponding to either swing direction. Also, an operation supporting image is displayed corresponding to one of the swing directions in accordance with change in the attitude of the imaging apparatus 100.
That is to say, in the event that the swing operation of the imaging apparatus 100 in the horizontal direction has been detected, a panorama image imaging range with the horizontal direction as the longitudinal direction is decided, and an operation supporting image corresponding to the horizontal direction is displayed. Also, in the event that the swing operation of the imaging apparatus 100 in the vertical direction has been detected, a panorama image imaging range with the vertical direction as the longitudinal direction is decided, and an operation supporting image corresponding to the vertical direction is displayed.
Note that a display method of an operation supporting image corresponding to change in the attitude of the imaging apparatus 100 will be described in detail with reference to
Thus, after full-pressing of the shutter button 191, the operation assisting screen 315 is displayed on the input/output panel 200, so the user 420 can easily perform the swing operation of the imaging apparatus 100 following the operation assisting screen 315. Also, an example of a display screen displayed on the input/output panel 200 after the user has started the swing operation will be illustrated in
The operation assisting screen 320 displays the subject which is currently to be imaged displayed as an LV image, and a message display region 321 and operation supporting images 322 and 324 superimposed on the LV image. The message display region 321 displays a message to the effect of displaying the panorama image imaging range, and a message prompting the user to move the imaging apparatus 100 to the start position of the panorama image imaging operation.
The operation supporting images 322 through 324 are images for supporting user operations relating to the panorama image imaging operation (swing operation of the imaging apparatus 100), as described above. Specifically, the operation supporting images 322 and 323 are images for identifying the subject included in the panorama image imaging range, and may be dotted lines representing the outline of a generally rectangular shape corresponding to the panorama image (overall rectangular-shaped dotted lines). Also, the operation supporting images 322 and 323 are positioned on the LV image displayed on the operation assisting screen 320. Also, the operation supporting image 324 is a solid line indicating the center position in the panorama image (center position in the swing direction), and is situated on the LV image displayed on the operation assisting screen 320. Thus, the user 420 can easily comprehend the intermediate position in the panorama image by the operation supporting image 324 being displayed.
Now, the display position of the operation supporting image 324 is determined based on the set image size θ1 (i.e.,) 180°, and the end position 422 of the imaging operation. That is to say, the position “θ½” from the end position 422 of the imaging operation is decided as the display position for the operation supporting image 324.
For example, as shown in
Now, a display method of the operation support images (operation support images 322, 323, etc.) will be described. An operation support image is displayed as a reference for the current operating position as to the overall amount of operation which has to be performed in the panorama image imaging operation (e.g., rotational angle of the swing operation). For example, the end position of the panorama image imaging operation is set as a reference position, and based on the amount of operation from this reference position (end position), an operation support image for one of the horizontal direction and vertical direction is decided as an operation support image to be displayed.
Specifically, the current amount of operation is calculated by the control unit 160, based on the detection results of amount of movement and direction of movement (detection results of the image processing unit 113) between images adjacent on the temporal axis (images generated by the imaging device 112). The control unit 160 then decides the operation support image (horizontal direction or vertical direction) to be displayed, based on the current operation amount, and changes the display state of the operation support image. For example, a motion vector corresponding to the overall motion of the image occurring due to the imaging apparatus 100 moving (i.e., a GMV) is detected as the amount of movement and direction of movement thereof. Also, the control unit 160 may calculate the current amount of operation based on the angular velocity detected by the attitude detecting unit 150. Further, the control unit 160 may calculate the current amount of operation using the amount of movement and direction of movement thereof and the angular velocity detected by the attitude detecting unit 150. In this case, the user can easily comprehend the panorama image imaging range by displaying an operation support image.
Also, the operation support image may be displayed in a different manner depending on whether an operation support image from the operation of deciding the end position 422 up throughout the swing operation to the start position 423, or an operation support image from the start position 423 throughout the swing operation to the end position 422. For example, the operation support image may be made to be displayed in a blinking manner for the operation support image from the operation of deciding the end position 422 up throughout the swing operation to the start position 423. Thus, by displaying the operation support image while performing the swing operation for preparation, the user can be notified that this is not a panorama image imaging operation but movement as preparation thereof.
Also, in the event that the imaging apparatus 100 has reached the start position 423 and a starting instruction operation has been performed for the panorama image imaging operation by the user 420, the display form of the operation support image may be changed from the blinking display to normal display (constant on). That is to say, the operation support image may be displayed normally during the swing operation from the start position 423 to the end position 422 (panorama image imaging operation). Accordingly, by changing the display form of the operation support image, whether currently preparing for the panorama image imaging operation or whether currently performing the panorama image imaging operation can be readily comprehended by the user.
An operation assisting screen 325 has operation supporting images 327 through 329 displayed instead of the operation supporting images 322 and 323 in the operation assisting screen 320 in
A message display region 326 displays a message to the effect of prompting a start position deciding operation for the panorama image imaging operation based on the operation supporting images 327 through 329, and a message prompting the user to start the panorama image imaging operation after the deciding operation.
Thus, in the event of the imaging apparatus 100 having been moved to the start position 423 of the imaging operation, a message prompting the start position deciding portion for the panorama image imaging operation is displayed. Also, along with this display, a message to the effect of swinging the imaging apparatus 100 in the opposite direction as the swinging direction so far to start the imaging operation is displayed.
Thus, in the event that the user 420 performs a full-press operation of the shutter button 191 after the imaging apparatus 100 is moved to the start position 423 of the imaging operation and the operation assisting screen 325 is displayed on the input/output panel 200, the panorama image imaging operation is started. Also, upon the panorama image imaging operation being started, the operation supporting images 327 through 329 go from a blinking display to a constantly on state. Also, the operation supporting images 327 through 329 move in accordance with the motion of the imaging apparatus 100.
Now, in the event that the user 420 has performed a start position deciding operation (full-press operation of the shutter button 191) for example, it can be assumed that the position at the time of deciding may be different from the start position 423. For example, it can be assumed that the position may be shifted several degrees (e.g., one to five degrees) from the start position 423, with the position 421 as the center. In this case, the set image size may be changed based on the start position deciding operation by the user 420. For example, let us assume a case where the position at the time of the start position deciding operation is shifted +5° (center angle centered on the position 421) from the start position 423. In this case, the set image size (180°) can be changed to 185°.
Note that with this example, an example is illustrated where the full-press operation of the shutter button 191 by the user 420 is the start position deciding operation for the panorama image imaging operation, but an arrangement may be made wherein the imaging apparatus 100 automatically decides the start position at the time of having reached the start position 423. In this case, only a message to the effect that the panorama image imaging operation will be started is displayed, and the panorama image imaging operation is started automatically. Thus, upon the panorama image imaging operation being started, the operation supporting images change in accordance with the movement of the imaging apparatus 100. An example thereof will be described with reference to
The operation assisting screen 330 displays the subject which is currently to be imaged displayed as an LV image, and a message display region 331, operation supporting images 332 and 333, and an arrow 334 superimposed on the LV image. The message display region 331 displays a message to the effect of performing a swing operation of the imaging apparatus 100 to the panorama image imaging operation end position.
The arrow 334 is an arrow for supporting user operations relating to the panorama image imaging operation (swing operation of the imaging apparatus 100). That is to say, the user can perform the panorama image imaging operation by swinging the imaging apparatus 100 in the direction which the arrow 334 indicates.
Also, operation supporting images 337 through 339 which indicate the vertical direction imaging range and the right edge imaging range are displayed on the operation assisting screen 335, and the arrow shown in
Thus, in the event that the user 420 has moved the imaging apparatus 100 to the end position 422 of the imaging operation, the imaging operation of the panorama image ends, and a message to the effect that the panorama image imaging operation has ended is displayed. Ending processing of the panorama image imaging operation is performed by the control unit 160 determining whether or not the imaging apparatus 100 has reached the end position 422, based on the attitude information from the attitude detecting unit 150.
Also, a panorama image is generated by the image combining unit 120 using the multiple images generated by the imaging operation. After the panorama image imaging operation has ended, the generated panorama image is recorded in the recording medium 140 by the recording control unit 130 as a still image file.
Note that with the first embodiment of the present technology, an example has been described where the imaging range (image size) of the panorama image is set beforehand, and ending processing of the panorama image imaging operation is performed using this image size. Note however, that an arrangement may be made wherein the image size is changed during the panorama image imaging operation, based on user operations. For example, the image size can be changed by moving the operation supporting image 338 indicating the imaging range at the right edge to the left or right during the panorama image imaging operation. This moving operation can be performed by an operation using the dial 192, for example, or a touch operation (tracing operation) on the input/output panel 200. Accordingly, the user can adjust the imaging range of the panorama image while confirming the imaging range thereof.
Note that there is a possibility that the user may not properly perform the swing operation while the imaging apparatus 100 moves from the start position 423 of the imaging operation to the end position 422 of the imaging operation. For example, it can be expected that the imaging apparatus 100 will move somewhat in the vertical direction as well, during the swing operation in the horizontal direction. In this case, the display position of the operation supporting image is displayed moved in accordance with the movement in the vertical direction. Also, in this case, a message may be displayed prompting a proper swing operation, so as to notify the user to that effect.
Thus, by displaying operation supporting images indicating the imaging range decided based on the deciding operation of the end position of the panorama image imaging range, the user can easily comprehend the imaging range of the panorama image before starting the panorama image imaging operation. That is to say, the user can easily confirm the panorama image imaging range by performing the swing operation of the imaging apparatus 100.
Also, the operation supporting images are displayed until the panorama image imaging operation ends. Accordingly, the user can easily shoot an intended panorama image by swinging the imaging apparatus 100 following the operation supporting images. That is to say, a panorama image according to user preferences can be easily generated.
Next, operations of the imaging apparatus 100 according to the first embodiment of the present technology will be described with reference to the drawings.
First, the panorama image imaging mode is set (step S901). Next, the control unit 160 determines regarding whether or not a deciding operation for the end position for the panorama image imaging operation has been performed (step S902), and in the event that no deciding operation has been performed, monitoring is continued.
In the event that a deciding operation has been performed (Yes in step S902), a positioned identified by the attitude of the imaging apparatus 100 at the time of that deciding operation having been accepted is set as the end position (step S903). That is to say, the control unit 160 decides the imaging range of the panorama image (horizontal direction and vertical direction), based on the end position. Note that step S902 is an example of the accepting described in the Summary. Also, step S903 is an example of the deciding described in the Summary.
Next, an imaged image is generated (step S904), and control unit 160 calculates the amount of movement (movement angle) from the end position, based on the attitude information from the attitude detecting unit 150 (step S905).
Next, the control unit 160 compares the amount of movement in the horizontal direction and the amount of movement in the vertical direction, with regard to the calculated amount of movement (step S906). In the event that the amount of movement in the horizontal direction is greater than the amount of movement in the vertical direction (Yes in step S906), the display control unit 170 displays an operation supporting image of which the horizontal direction is the direction of movement, superimposed on the LV image (step S908). For example, a portion of a rectangular dotted line of which the horizontal direction is the longitudinal direction (see
On the other hand, in the event that the amount of movement in the horizontal direction is not greater than the amount of movement in the vertical direction (No in step S906), the display control unit 170 displays an operation supporting image of which the vertical direction is the direction of movement, superimposed on the LV image (step S907). For example, a portion of a rectangular dotted line of which the vertical direction is the longitudinal direction is displayed on the display unit 180 as an operation supporting image.
Next, the control unit 160 determines whether or not a start instruction operation (start position deciding operation) for the panorama image imaging operation has been performed (step S909), and in the event that the start instruction operation has not been performed, the flow returns to step S904. In the event that the start instruction operation for the panorama image imaging operation has been performed (Yes in step S909), the control unit 160 compares the amount of movement in the horizontal direction and the amount of movement in the vertical direction (step S910). In the event that the results of comparison show that the amount of movement in the horizontal direction is greater than the amount of movement in the vertical direction (Yes in step S910), the control unit 160 makes settings with the horizontal direction as the direction of movement (swing direction) (step S912).
On the other hand, in the event that the amount of movement in the horizontal direction is not greater than the amount of movement in the vertical direction (Yes in step S910), the control unit 160 makes settings with the vertical direction as the direction of movement (swing direction) (step S911). An operation supporting image is displayed based on the direction of movement (horizontal direction or vertical direction) set in this way. For example, in the event that the horizontal direction is set to be the direction of movement (swing direction) (step S912), a portion of a rectangular dotted line of which the horizontal direction is the longitudinal direction (see
Next, an imaged image is generated (step S913). Next, the display control unit 170 displays the operation supporting image on the display unit 180 superimposed on the LV image, based on the direction of movement (horizontal direction or vertical direction) set by the control unit 160 (step S914). Next, recording processing of the generated imaged image is performed (step S915). With this processing, an imaged image used for the panorama image (one imaged image subjected to image processing by the image processing unit 113) is temporarily recorded.
Next, the control unit 160 determines whether or not an end instruction operation of the panorama image imaging operation has been performed (step S916), and in the event that an end instruction operation has not been performed, the flow returns to step S913. In the event that an end instruction operation has been performed (Yes in step S916), the image combining unit 120 generates a panorama image using images subjected to image processing by the image processing unit 113 (multiple images temporarily recorded) under control of the control unit 160 (step S917). Next, under control of the control unit 160, the recording control unit 130 records the panorama image generated by the image combining unit 120 in the recording medium 140 as an image file (step S918).
With the first embodiment according to the present technology, an example has been illustrated in which the end position for the panorama image imaging operation is decided based on user operations. Since the end position for the panorama image imaging operation is decided based on user operations, it can also be conceived to decide the end timing of the panorama image imaging operation using the imaged image at the time of that user operation (end position). Accordingly, with the second embodiment according to the present technology, an example will be illustrated where the end timing of the panorama image imaging operation is decided using the imaged image at the end position of the panorama image imaging operation.
The imaging apparatus 500 has a matching image detecting unit 510 and a control unit 520. The matching image detecting unit 510 is for performing matching processing regarding images generated by the imaging device 112, and outputs the detection results thereof to the control unit 520. Specifically, in the event that a deciding operation for the end position of the panorama image imaging operation is performed, the matching image detecting unit 510 holds the image generated by the imaging device 112 (the image subjected to image processing by the image processing unit 113). The matching image detecting unit 510 then determines whether or not the image that is held (held image) and an image generated by the imaging device 112 following the attitude of the imaging apparatus 500 changing after accepting that deciding operation, and detects matching images.
The control unit 520 performs control to stop the panorama image imaging operation based on the detection results from the matching image detecting unit 510. Specifically, the control unit 520 determines whether the aforementioned held image and the image generated by the imaging device 112 during the panorama image imaging operation match, based on the detection results from the matching image detecting unit 510. In the event that these images match, the control unit 520 performs control to stop the panorama image imaging operation.
As shown in
Now, matching processing is processing in which the feature amounts of two images to be compared are compared, similarity of the feature amounts of the two images is calculated based on the comparison results, and determination is made regarding whether the two images match or not based on this similarity. For example, in the event that the calculated similarity is below a threshold, the two images to be compared are determined to not match, and in the event that the calculated similarity is at or above the threshold, the two images to be compared are determined to match.
Now, in the event that an image matching the held image 511 is not detected in the matching processing, end processing is performed at the panorama image imaging range set beforehand (the end position (or a position advanced a predetermined angle from the end position)).
Also, while an example has been illustrated in which matching processing is sequentially performed while the swing operation of the imaging apparatus 500 is being performed, an arrangement may be made wherein matching processing is only performed within a certain range from the end position of the panorama image imaging operation that has been set beforehand. For example, matching processing may be started in the event of reaching within a range of ±5° from the end position. Accordingly, the load on the imaging apparatus 500 when performing imaging operations can be reduced. Also, matching processing can be suitably performed even in a case where a great part of the panorama has few features.
After the end position of the panorama image imaging operation has been set (step S903), the matching image detecting unit 510 holds an image generated by the imaging device 112 at the time of the deciding operation having been accepted (step S921).
Also, after recording processing of the generated imaged image has been performed (step S915), the matching image detecting unit 510 determines whether or not the generated image and the image that is held (held image) match (step S922). In the event that the generated image and the held image do not match (No in step S922), the flow returns to step S913. On the other hand, in the event that the generated image and the held image match (Yes in step S922), the matching image detecting unit 510 outputs a notification to that effect to the control unit 160. Thus, end processing of the panorama image imaging operation is performed, and the image combining unit 120 generates a panorama image (step S917).
With the first embodiment according to the present technology, an example has been illustrated in which the deciding operation of the end position and start position for the panorama image imaging operation is performed manually. Now, in the event that the image size (angle) of the panorama image has been set beforehand, it can be conceived to automatically decide the start position and end position of the panorama image imaging operation by deciding a predetermined position on the panorama image (e.g., intermediate position). Accordingly, with the third embodiment of the present technology, an example will be illustrated of automatically deciding the start position and end position of the panorama image imaging operation by deciding a predetermined position on the panorama image. Note that the configuration of the imaging apparatus according to the third embodiment according to the present technology is generally the same as that of the example shown in
For example, the user 420 decides the intermediate position in the panorama image while viewing the LV image displayed on the input/output panel 200. In the event that an imaging range including the building 401 is to be decided as the intermediate position as shown in
Now, description will be made regarding a method for deciding the start position and end position of the imaging operation in the horizontal direction, with the set image size being θ1 (180°). Now, we will say that the user 420 has performed a full-press operation of the shutter button 191 in the state shown in
Note that a position other than the intermediate position may be decided as being the reference position. For example, in the event that 120° is decided as the image size, 40° (i.e., 40° from the start position) may be used as a reference position. In this case, θ2=θ1×θ(⅓) and θ3=θ1×θ(⅔) hold. Note that this reference position may be changed by user operations.
The message display region 611 displays a message to the effect that the intermediate position of the panorama image imaging operation has been decided, and displays a message prompting the user to move the imaging apparatus 100 to the start position of the panorama image imaging operation.
The operation supporting images 612 and 613 are dotted lines (overall rectangular dotted lines) indicating the panorama image imaging range (rectangular shape), in the same way as with the first embodiment of the present technology, and are disposed on the LV image displayed on the operation assisting screen 610. Also, the operation supporting image 614 is a solid line indicating the center position in the panorama image (center position in the swing direction), and is situated on the LV image displayed on the operation assisting screen 610, in the same way as with the first embodiment of the present technology.
Note that the method for displaying operation assisting screens corresponding to change in the attitude of the imaging apparatus 100 is generally the same as with the first embodiment of the present technology, so description thereof will be omitted here. Thus, a panorama image according to user preferences can be easily generated even in a case of deciding a position other than the end position of the panorama image imaging operation (e.g., intermediate position) as a reference position.
With the first embodiment according to the present technology, an example of an imaging apparatus having a single imaging unit has been described. Now, a case where a single imaging apparatus has multiple imaging units (e.g., a main camera and auxiliary camera) is conceivable. In this case, while the panorama image imaging operation can be performed using one imaging unit (e.g., the main camera), using the other imaging unit (e.g., auxiliary camera) in the panorama image imaging operation is conceivable. Accordingly, with the fourth embodiment according to the present technology, an example of performing the panorama image imaging operation using an imaging apparatus having multiple imaging units will be illustrated.
The imaging apparatus 700 has a right side lens unit 701 and a left side lens unit 702. The right side lens unit 701 and left side lens unit 702 are configured of multiple lenses which collect light from the subject (zoom lens, focusing lens, etc.), and are turnable in a particular direction (the horizontal direction in the example shown in
In this case, a range from a position where the optical axis direction of the right side lens unit 701 and the optical axis direction of the lens unit 111 are parallel, to a position where the optical axis direction of the right side lens unit 701 and the optical axis direction of the lens unit 111 are orthogonal, may be the turning range of the right side lens unit 701. In the same way, a range from a position where the optical axis direction of the left side lens unit 702 and the optical axis direction of the lens unit 111 are parallel, to a position where the optical axis direction of the left side lens unit 702 and the optical axis direction of the lens unit 111 are orthogonal, may be the turning range of the left side lens unit 702.
The imaging apparatus 700 includes the right side lens unit 701, the left side lens unit 702, an imaging device 703, an imaging device 704, an image processing unit 711, an image combining unit 712, and a control unit 713. The right side lens unit 701 and left side lens unit 702 are the same as shown in
The imaging device 703 converts the light input via the right side lens unit 701 (incident light from the subject) to generate an image (image data), and supplies the generated image to the image processing unit 711. The imaging device 704 converts the light input via the left side lens unit 702 (incident light from the subject) to generate an image (image data), and supplies the generated image to the image processing unit 711. Note that the imaging device 112 is an example of an imaging unit described in the Summary. Also, the imaging devices 703 and 704 are examples of a second imaging unit described in the Summary.
That is to say, the lens unit 111 and imaging device 112 function as the main camera, and the right side lens unit 701 and imaging device 703, and the left side lens unit 702 and imaging device 704, function as an auxiliary camera (sub camera). Also, the auxiliary camera may be situated such that the optical axis direction of the main camera and the optical axis direction of the auxiliary camera are different. Note that cameras with different functions may be used as the main camera and auxiliary camera. For example, an arrangement may be made wherein the main camera is a camera having resolution of around 12 million pixels, while the auxiliary camera is a camera having resolution of around 2 million pixels.
The image processing unit 711 processes various types of images with regard to the images (image data) generated by each of the imaging device 112, imaging device 703, and imaging device 704, under control of the control unit 713. Also, the image processing unit 711 supplies images (image data) subjected to image processing to the image combining unit 712 and display control unit 170.
The image combining unit 712 combines a panorama image using multiple image supplied from the image processing unit 711, and supplies the generated panorama image to the recording control unit 130, under control of the control unit 713.
In the event that a deciding operation is accepted in the state of the optical axis direction of the auxiliary camera facing the start position or end position of the panorama image imaging operation, the control unit 713 decides the panorama image imaging range based on the positional relation between the main camera and auxiliary camera. The deciding operation is a deciding operation where the intermediate position in the panorama image is decided to be the reference position.
The selection buttons 731 through 734 are buttons used for setting the panorama image shooting method. Now, the panorama image shooting method corresponding to the setting button 734 corresponds to the shooting method illustrated with the first embodiment of the preset technology. Also, the panorama image shooting methods corresponding to selection buttons 731 through 733 will be described in detail with reference to
The OK button 735 is a button pressed after a selection operation has been made to select the panorama image shooting method, so as to finalize that selection. Also, information relating to the panorama image shooting method decided by a pressing operation of the OK button 735 (shooting method information) is output to the control unit 160 and held. The return button 736 is a button pressed to return to the display screen displayed immediately before.
Now, in the event that the first shooting method has been set, we will say that the optical axis directions of each of the right side lens unit 701 and left side lens unit 702 are determined based on the image size that has been set. For example, in the event that the image size that has been set is θ1, the optical axis directions of each of the right side lens unit 701 and left side lens unit 702 are each determined to be a position turned by θ½ from the optical axis direction of the lens unit 111. For example, in the event that the set image size is 180° as shown in
The operation assisting screen 750 has a start position subject display region 751, an end position subject display region 752, a message display region 753, and operation supporting images 754 and 755, superimposed on the LV image. Note that the LV image is an image generated by the imaging device 112 based on the subject light input via the lens unit 111 (i.e., an image including the building 401). That is to say, this is an image including the subject which is currently being imaged by the main camera.
The start position subject display region 751 has displayed therein an image generated by the imaging device 704 based on the subject light input via the left side lens unit 702 (i.e., an image including the building 402). The end position subject display region 752 has displayed therein an image generated by the imaging device 703 based on the subject light input via the right side lens unit 701 (i.e., an image including the large tree 403).
The message display region 753 has displayed therein a message to the effect that the subjects existing at the start position and end position of the panorama image imaging operation are displayed, and a message prompting the user to move the imaging apparatus 700 to the start position of the panorama image imaging operation. The operation supporting images 754 and 755 are, in the same way as with the first embodiment according to the present technology, images (dotted lines) indicating the imaging range of the panorama image in the vertical direction.
Now, the user can confirm the position of the panorama image while watching the subjects displayed on the input/output panel 200 (the subjects existing at the start position, intermediate position, and end position), and perform a deciding operation to decide the intermediate position (start position and end position) of the panorama image. This deciding operation can be performed by full-pressing of the shutter button 191, in the same way as with the first embodiment according to the present technology.
For example, the user can decide the imaging range corresponding to the panorama image while viewing the LV image displayed on the input/output panel 200. For example, as shown in
Now, the start position subject display region 751 and end position subject display region 752 may continue to display only the images from the time of the deciding operation, until the panorama image imaging operation ends. Accordingly, the user performing the panorama image imaging operation can easily visually comprehend the start position and end position of the panorama image imaging operation.
Thus, by displaying a subject equivalent to the start position 742 in the start position subject display region 751, and displaying a subject equivalent to the end position 743 in the end position subject display region 752, the user can easily comprehend the positions in the panorama image. Now, the method for displaying the operation supporting images in accordance with the change in attitude of the imaging apparatus 700 is generally the same as with the first embodiment according to the present technology, so description thereof will be omitted here.
Now, in the event that the second shooting method has been set, we will say that the optical axis direction of the left side lens unit 702 is determined based on the image size that has been set. For example, in the event that the image size that has been set is θ1, the optical axis directions of the left side lens unit 702 is determined to be a position turned by θ½ from the optical axis direction of the lens unit 111. For example, in the event that the set image size is 180° as shown in
The operation assisting screen 760 has a start position subject display region 761, a message display region 762, and operation supporting images 763 and 764, superimposed on the LV image. Note that the operation assisting screen 760 is generally the same as the operation supporting image 750 illustrated in
Now, in the event that the third shooting method has been set, we will say that the optical axis direction of right side lens unit 701 are determined based on the image size that has been set. For example, in the event that the image size that has been set is θ1, the optical axis directions of the right side lens unit 701 is determined to be a position turned by θ½ from the optical axis direction of the lens unit 111. For example, in the event that the set image size is 180° as shown in
The operation assisting screen 770 has a start position subject display region 771, a message display region 772, and operation supporting images 773 and 774, superimposed on the LV image. Note that the operation assisting screen 770 is generally the same as the operation supporting image 750 illustrated in
Note that an arrangement may be made where, using an image generated with the auxiliary camera, start processing of the imaging operation at the start position of the panorama image imaging operation, or end processing of the imaging operation at the end position of the panorama image imaging operation, is automatically performed. For example, the second embodiment according to the present technology may be applied. Specifically, an image displayed in the start position subject display region (i.e., an image generated by the imaging device 704) is held, and the start position of the panorama image imaging operation is detected by matching processing between the held image and the images generated by the imaging device 112. In the event that the start position has been detected, the start processing of the panorama image imaging operation is automatically performed. In the same way, an image displayed in the end position subject display region (i.e., an image generated by the imaging device 703) is held, and the end position of the panorama image imaging operation is detected by matching processing between the held image and the images generated by the imaging device 112. In the event that the end position has been detected, the end processing of the panorama image imaging operation is automatically performed.
So far, examples of using images generated by the main camera for generating a panorama image have been illustrated. Here, an example will be described of using images generated by the main camera and images generated by the auxiliary camera to generate a panorama image.
Now, there exists a technique in which a combined image with an extended dynamic range is generated, by combining a long-exposure-time image and a short-exposure-time image with different exposure times, for example. Note that the long-exposure-time image and short-exposure-time image are imaged images continuously generated under different exposure conditions. Specifically, the short-exposure-time image is an imaged image of which the exposure time is relatively short, for example, with priority on relatively bright portions of the subjects in the same shooting scene. On the other hand, the long-exposure-time image is an imaged image of which the exposure time is relatively long, for example, with priority on relatively dark portions of the subjects in the same shooting scene. Accordingly, a combined image in which highlight and shadow gradients have been reproduced can be generated by combining the long-exposure-time image and short-exposure-time image, and the dynamic range can be expanded.
Accordingly, with the example shown in
We will say that, for example, an imaging range to be imaged by the imaging device 112 is a main camera imaging range 780. We will also say that an imaging range to be imaged by the imaging device 704 is an auxiliary camera imaging range 781, and an imaging range to be imaged by the imaging device 703 is an auxiliary camera imaging range 782.
For example, the imaging device 112 generates a normal imaging image, and the imaging devices 703 and 704 generate multiple imaged images with different exposure conditions (long-exposure-time image and short-exposure-time image). Specifically, the imaging devices 703 and 704 generate a long-exposure-time image and a short-exposure-time image by imaging the same subject twice in a row, with different exposure conditions from those of the imaging device 112 during the panorama image imaging operation.
The image combining unit 712 generates a panorama image with an expanded dynamic range in at least a partial region, by combining multiple images generated by the imaging devices 703 and 704 with the multiple images generated by the imaging device 112. For example, the image combining unit 712 decides the combining ratio of pixels in accordance with luminance of the pixels making up the short-exposure-time image, and performs high dynamic range combining processing regarding the images output from the image processing unit 711 (long-exposure-time image and short-exposure-time image), based on this combining ratio. In this case, the image combining unit 712 performs positioning regarding the images output from the image processing unit 711 (normal imaged images, long-exposure-time images, and short-exposure-time images) by performing matching processing, and thereby can perform combining processing.
Example of Imaging Apparatus Having Auxiliary Cameras Capable of Turning in Direction Other than Horizontal Direction
So far, description has been made regarding an example of generating panorama images using auxiliary cameras turnable in the horizontal direction. Now, in the event of generating panorama images of which the vertical direction is the longitudinal direction, generating panorama images using auxiliary cameras turnable in the vertical direction can be expected. Accordingly, in this example, an example of an imaging apparatus having auxiliary cameras capable of turning in a direction other than the horizontal direction is illustrated.
The imaging apparatus 790 has a right side lens unit 791 and a left side lens unit 792. The right side lens unit 791 and left side lens unit 792 are configured of multiple lenses which collect light from the subject (zoom lens, focusing lens, etc.), and are turnable in various directions (e.g., with the example in
Thus, the fourth embodiment of the present technology can be applied to an imaging apparatus having auxiliary cameras turnable in directions other than the horizontal direction.
With the first through fourth embodiments, examples have been illustrated in which operation supporting images indicating a panorama image imaging range are displayed. This modification illustrates another display example of operation supporting images. Note that this modification is a partial modification of the imaging apparatus 100 shown in
Also, with the display example in
For example, angles corresponding to the panorama image imaging range are displayed along operation supporting images 802 and 808 at the lower portion. These angles are angles in the case of the center position of the panorama image being 0°. Thus, the user can easily comprehend an accurate imaging range by angles corresponding to the panorama image imaging range being displayed.
For example, in the event that the swing direction is the horizontal direction, the operation supporting images 821 and 826 indicating the center of the panorama image imaging range in the vertical direction. By thus displaying the operation supporting images 821 and 826, the user can easily comprehend the swing direction of the panorama image and the center of the panorama image imaging range in the vertical direction.
Example of Displaying Operation Supporting Image Indicating Predetermined Range from Reference Position in Panorama Image
For example, as shown in
Display Example of Operation Supporting Image in Case that Swing Direction is Vertical Direction
So far, display examples of operation supporting images have been illustrated with regard to cases where the swing direction is the horizontal direction. However, as described above, embodiments of the present technology can be applied to cases where the swing direction is the vertical direction, as well. Accordingly,
Note that an operation assisting screen 840 shown in
Thus, by displaying various types of operation supporting images, panorama image imaging operations can be performed easily, and a panorama image according to user preferences can be easily generated. Also, these operation supporting images may be changeable by user operations. Accordingly, the user can perform panorama image imaging operations using operation supporting images according to user preferences.
Example of Performing Exposure Control Using Information of Brightness from End Position to Start Position of Panorama Image Imaging Operation
In such a case, the user 861 can be expected to find a portion in the panorama image imaging range 850 with brightness that is just right, and to perform exposure adjustment by manual operations. However, it can also be expected that finding a portion in the panorama image imaging range 850 with brightness that is just right will be difficult.
For example, a brightness according to user preferences is set beforehand in a brightness setting screen. For example, in the event of including sky in the panorama image imaging range, the panorama image can often be made to look relatively beautiful by locking the exposure at a somewhat brighter portion. Accordingly, in the event of including sky in the panorama image imaging range, for example, settings can be made in which the exposure is locked at a somewhat brighter portion. In the event of performing a panorama image imaging operation in a case of exposure conditions having been set in this way, the imaging apparatus 860 automatically sets exposure based on the exposure conditions.
Also, let us assume that the imaging apparatus 860 is an imaging apparatus callable of setting multiple imaging modes (e.g., scenery mode, sunset mode, night lights mode, snow mode, beach mode, underwater mode). In this case, exposure of the panorama image can be automatically set using brightness information obtained from the panorama image imaging range 850, based on the imaging mode that has been set. Such settings allow a panorama image according to user preferences to be easily generated.
With the first through fourth embodiments of the present technology, examples have been illustrated wherein the panorama image imaging operation is performed by the user performing a swing operation of the imaging apparatus with the position of the imaging apparatus as a reference. However, a case can be expected where a panorama image imaging operation is performed by moving the imaging apparatus along a straight line generally parallel to the subject, for example. Accordingly, an example of performing a panorama image imaging operation by moving the imaging apparatus along a straight line generally parallel to the subject will be described below.
In this way, with the example shown in
Note that while examples of an imaging apparatus having an imaging unit have been described with the embodiments of the present technology, the embodiments of the present technology can be applied to an imaging apparatus of which the imaging unit is detachable.
Also, while examples of generating a panorama image by combining still images have been described with the embodiments of the present technology, the embodiments of the present technology can be applied to a case of generating a panorama image using moving images generated by moving image imaging operations. Also, the embodiments of the present technology can be applied to a case of generating a multi-view panorama image as well.
Also, the embodiments of the present technology can be applied to image processing devices such as a cellular phone with imaging functions, a personal digital terminal with imaging function, or the like.
Note that the above-described examples are examples of carrying out the present technology, and that there is correspondence between specific elements disclosed in the embodiments and the features in the claims. In the same way, there is correspondence between the features in the claims and specific elements disclosed in the embodiments bearing the same names. Note however, that the present technology is not restricted to the embodiments, and can be carried out by making various modifications to the embodiments without departing from the essence thereof.
Also, the processing procedures described in the above embodiments may also be understood to be a method having these series of procedures, and also may be understood to be a program causing a computer to execute these series of procedures and a recording medium to stored the program. Examples of this recording medium include CD (Compact Disc), MD (MiniDisc), DVD (Digital Versatile Disk), memory card, Blu-ray Disc (registered trademark), and so forth.
Also, the present technology may have the following configurations.
(1) An apparatus including:
a reference position receiving unit configured to receive intermediate or end panorama reference position information input by a user; and
a control unit configured to control an imaging device to begin generating a plurality of images to be used to generate a panoramic image based on the intermediate or end panorama reference position information input by the user after the reference position receiving unit receives the intermediate or end panorama reference position information.
(2) The apparatus according to (1), wherein the intermediate panorama reference position information includes a center position of the panorama image.
(3) The apparatus according to (1) or (2), further comprising:
the imaging device configured to generate the plurality of images.
(4) The apparatus according to (1), wherein the end panorama reference position information includes a reference image, and the control unit controls the imaging device to end generating the plurality of images when a current image matches the reference image.
(5) The apparatus according to (1) to (4), further comprising:
an attitude detecting unit configured to detect a current orientation of the apparatus.
(6) The apparatus according to (5), wherein the end panorama reference position information includes an end panorama reference position orientation, and the control unit ends generating the plurality of images when the current orientation matches the end panorama reference position orientation.
(7) The apparatus according to (5), wherein the control unit receives an image width from the user and determines a start point orientation based on the image width and the end panorama reference position information.
(8) The apparatus according to (5), wherein the intermediate panorama reference position information includes an intermediate panorama reference position orientation, and the control unit receives an image width from the user and determines a start point orientation and an end point orientation based on the image width and the intermediate panorama reference position orientation.
(9) The apparatus according to (1) to (8), wherein the control unit receives an image width from the user and determines a start point and an end point based on the image width and the intermediate panorama reference position information.
(10) The apparatus according to (3), wherein the imaging device includes a main imaging device and a sub imaging device.
(11) The apparatus according to (10), wherein the sub imaging device images an end panorama reference image, and the control device ends generating the plurality of images when a current image matches the end panorama reference position image.
(12) The apparatus according to (10), wherein the sub imaging device images a start panorama reference image, and the control device starts generating the plurality of images when a current image matches the start panorama reference position image.
(13) The apparatus according to (12), wherein the sub imaging device images an end panorama reference image, and the control device ends generating the plurality of images when a current image matches the end panorama reference position image.
(14) The apparatus according to (10), wherein the main imaging device images all of the plurality of images for the panoramic image.
(15) The apparatus according to (1) to (14), wherein the apparatus is a mobile phone, the mobile phone transmits the plurality of images to a server, and receives the panoramic image from the server.
(16) The apparatus according to (1) to (15), wherein the control unit is configured to control the imaging device to begin generating the plurality of images to be used to generate the panoramic image based on panorama reference position information for a plurality of reference points input by the user after the reference position receiving unit receives the panorama reference position information for the plurality of reference points.
(17) The apparatus according to (16), wherein the control unit receives the panorama reference position information for the plurality of reference points including at least a start point and a center point.
(18) The apparatus according to (1) to (17), wherein the control unit is configured to control the imaging device to begin generating the plurality of images to be used to generate the panoramic image based on an end panorama reference position image input by the user after the reference position receiving unit receives the end panorama reference position image, and to control the imaging device to end generating the plurality of images when a current image matches the end panorama reference position image.
(19) A method including:
receiving intermediate or end panorama reference position information input by a user; and
controlling an imaging device to begin generating a plurality of images to be used to generate a panoramic image based on the intermediate or end panorama reference position information input by the user after the reference position receiving unit receives the intermediate or end panorama reference position information.
(20) A non-transitory computer readable medium encoded with a program that, when loaded on a processor, causes the processor to perform a method including:
receiving intermediate or end panorama reference position information input by a user; and
controlling an imaging device to begin generating a plurality of images to be used to generate a panoramic image based on the intermediate or end panorama reference position information input by the user after the reference position receiving unit receives the intermediate or end panorama reference position information.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2011-168862 | Aug 2011 | JP | national |
