Patent Application
20060119734
The present embodiments relate to a docking station for near-image digital photography.
Since the early days of photography, slides have been used to capture beautiful images on light transmissive mediums and to document important paintings and critical events. Millions of slides, negatives and microfilms are still in existence and contain a wealth of important medical, scientific, commercial and historical information. A variety of conventional scanning systems are known for scanning and converting slides, negatives and other forms of images that are recorded on a light transmissive medium into a digital form. These scanning systems involve the use of expensive computer based peripherals that typically require more than an initial level of computer expertise. Accordingly, a need exists for an inexpensive system that enables consumers and archivists to easily transfer these slides, negatives, microfilms and other forms of information recorded on transmissive mediums to a digital format.
A related image capture need is for an image capture system that enables a user to easily capture images of photographic subjects for which high quality close-up image capture and/or backlit image capture is desirable. Examples of photographic subjects of this type include, but are not limited to, objects such as photographs, collectable cards, coins, gemstones and the like. While a variety of systems are known in the art to facilitate such near object photography, such systems are complex, expensive and require advanced knowledge of camera settings, such as exposure requirements. Accordingly, such systems are typically not well suited for users who simply wish to easily capture quality images of near objects.
In one aspect of the invention, a docking station is provided. The docking station has a base with a digital camera receiver adapted to position a digital camera so that the digital camera is directed at an object mount. The object mount adapted to position a subject object at a distance of less than one meter from a lens system of the digital camera. A communication circuit is adapted to exchange data between the dock controller and a camera controller in the digital camera when the digital camera is in the digital camera receiving area. The exchange of data causes the camera controller to adapt a setting of an image capture system in the camera for the capture of an image of the subject object.
In another aspect of the invention, a docking station is provided for capturing an image of an image recorded on a light transmissive medium. The docking station has a base with a first end and a second end, and an object mount connected to the base between the first and second end. The object mount has a holding frame that is adapted to hold the light transmissive medium. A light source is at the first end, and is adapted to illuminate the object mount in an area where the object mount will hold the transmissive medium. A digital camera receiving area at the second end is adapted to position the digital camera so that the digital camera is positioned to capture an image of the image recorded on the transmissive medium in the object mount. A communication circuit is adapted to enable data to be exchanged between a digital camera controller in the digital camera and a base controller. The base controller and digital camera controller are adapted to exchange data and to use the exchanged data to cause the light source to illuminate the image on the light transmissive medium and to cause the digital camera to be set to capture an image of the image on the light transmissive medium.
In still another aspect of the invention, a docking station is provided for transferring images on light transmissive mediums using a digital camera. The docking station has a base connected to a power source, an object mount connected to the base adapted to hold a light transmissive medium having an image recorded thereon, a light source disposed within the base adapted to illuminate the image on a light transmissive medium, and a stand comprising a top end and a bottom end, wherein the bottom end is connected to the base. A digital camera is connected to the top end. The digital camera is positioned to capture an image of the image on a light transmissive medium illuminated in the object mount. A controller is connected to the base, wherein the controller is adapted to perform at least three operations: a first operation to cause the digital camera to set up an image capture system to capture the image of an image on the light transmissive medium; a second operation to illuminate the image on a light transmissive medium using the light source; and a third operation to allow the digital camera to communicate with an output device once the image on a light transmissive medium is captured digitally.
In a further aspect of the invention, a docking station for use with a digital camera is provided. The imaging docking station has a base means with a digital camera receiving means for directing a digital camera at an object mount means, with the object mount means for positioning a subject object at a distance of less than one meter from an image capture means of the digital camera. A communication means is provided for exchanging data between a dock control means and a camera control means in the digital camera. Wherein the exchange of data causes the camera control means to adapt the image capture means in the digital camera for the capture of an image of the subject object.
In the detailed description of the preferred embodiments presented below, reference is made to the accompanying drawings, in which:
The present embodiments are detailed below with reference to the listed Figures.
Before explaining the present embodiments in detail, it is to be understood that the embodiments are not limited to the particular descriptions and that it can be practiced or carried out in various ways.
In one aspect of the invention, a docking station is provided that enables simple and effective image capture of near image objects such slides using a digital camera. Accordingly, images are not scanned, but are imaged all at once. Thus, the process for capturing a digital image from a slide is many times faster than traditional scanning processes. Further, the docking station is adapted to cooperate with the digital camera so that the user of the digital camera need not make complex adjustments to the camera in order to enable near image and/or backlit photography. Accordingly, as will be described in greater detail below, in various embodiments, once that the digital camera is positioned in the docking station photography of the near image object will be a simple as conventional photography and will be executable by someone who is knowledgeable in the operation of the digital camera without any specific knowledge of the concepts of near image photography. The docking station can have an integral printer or be connected to a remote printer to allow users to capture and print digital images in a convenient fashion. Accordingly, near image photography can be executed for printing, sharing, or archiving with low cost, ease of use, and with few maintenance issues.
Lens system 23 can be of a fixed focus type or can be manually or automatically adjustable. Lens system 23 can be simple, such as having a single focal length or the focal length can be adjustable. In the embodiment shown in
The focus position of lens system 23 can be automatically selected using a variety of known strategies including digital through focusing techniques. Alternatively, as shown in
Lens system 23 is also optionally adjustable to provide a variable zoom. In the embodiment shown, lens driver 25 automatically adjusts the position of one or more mobile elements (not shown) relative to one or more stationary elements (not shown) of lens system 23 based upon signals from signal processor 26, optional range finder 27, and/or camera controller 32 to provide a zoom magnification. Lens system 23 can be of a fixed magnification, manually adjustable and/or can employ other known arrangements for providing an adjustable zoom.
Light from the scene that is focused by lens system 23 onto image sensor 24 is converted into image signals representing an image of the scene. Image sensor 24 can comprise a charge couple device (CCD), a complimentary metal oxide sensor (CMOS), or any other electronic image sensor known to those of ordinary skill in the art. The image signals can be in digital or analog form.
Signal processor 26 receives image signals from image sensor 24 and transforms the image signals into an image in the form of digital data. The digital image can comprise one or more still images, and/or a stream of apparently moving images such as a video segment. Where the digital image data comprises a stream of apparently moving images, the digital image data can comprise image data stored in an interleaved or interlaced image form, a sequence of still images, and/or other forms known to those of skill in the art of digital video.
Signal processor 26 can apply various image processing algorithms to the image signals when forming a digital image. These can include but are not limited to color and exposure balancing, interpolation and compression. Where the image signals are in the form of analog signals, signal processor 26 also converts these analog signals into a digital form. In certain embodiments of the invention, signal processor 26 can be adapted to process signals from image sensor 24 so that the digital image formed thereby appears to have been captured at a different zoom setting than that actually provided by the lens system 23. This can be done by using a subset of the image signals from image sensor 24 and interpolating the subset of the image signals to form the digital image. This is known generally in the art as “digital zoom”. Such digital zoom can be used to provide electronically controllable zoom adjusted digital images in a digital camera 12 with a lens system 23 having a fixed focal length, manual focal length, or an automatically adjustable focal length lens system 23.
Camera controller 32 controls the operation of digital camera 12 during imaging operations, including but not limited to image capture system 22, display 30 and memory such as memory 40. Camera controller 32 causes image sensor 24, signal processor 26, display 30 and memory 40 to capture present, and/or store original images in response to signals received from a user input system 34, data from signal processor 26 and data received from optional sensors 36 and, as will be described in greater detail below, data from an external controller or other source. Camera controller 32 can comprise a microprocessor such as a programmable general-purpose microprocessor, a dedicated microprocessor or micro-controller, a combination of discrete components or any other system that can be used to control operation of digital camera 12.
Controller 32 cooperates with a user input system 34 to allow digital camera 12 to interact with a user. User input system 34 can comprise any form of transducer or other device capable of receiving an input from a user and converting this input into a form that can be used by camera controller 32 in operating digital camera 12. For example, user input system 34 can comprise a touch screen input, a touch pad input, a 4-way switch, a 6-way switch, an 8-way switch, a stylus system, a trackball system, a joystick system, a voice recognition system, a gesture recognition system or other such systems. In the embodiment of digital camera 12, shown in
Sensors 36 are optional and can include light sensors and other sensors known in the art that can be used to detect conditions in the environment surrounding digital camera 12 and to convert this information into a form that can be used by camera controller 32 in governing operation of digital camera 12. Sensors 36 can include audio sensors adapted to capture sounds. Such audio sensors can be of conventional design or can be capable of providing controllably focused audio capture such as the audio zoom system described in U.S. Pat. No. 4,862,278, entitled “Video Camera Microphone with Zoom Variable Acoustic Focus”, filed by Dann et al. on Oct. 14, 1986. Sensors 36 can also include biometric sensors adapted to detect characteristics of a user for security and affective imaging purposes. Further, sensors 36 can include light sensors that are adapted to sense exposure conditions in a scene and to provide data to camera controller 32 so that camera controller 32 can make exposure settings or determine a need for artificial illumination in a scene. Where a need for artificial illumination is determined based upon a signal from an illumination type sensor 36, camera controller 32 can cause a scene illumination system 84 such as a light, strobe, or flash system to emit light.
Camera controller 32 generates a capture signal which causes a corresponding digital image to be captured when a trigger condition is detected. Typically, the trigger condition occurs when camera controller 32 detects a trigger signal indicating that a user has depressed capture button 60. However, camera controller 32 can determine that a trigger condition exists at a particular time, or at a particular time after capture button 60 is depressed. Alternatively, camera controller 32 can determine that a trigger condition exists when optional sensors 36 detect certain environmental conditions, such as optical or radio frequency signals. Further camera controller 32 can determine that a trigger condition exists based upon affective signals obtained from the physiology of a user. As will be discussed in greater detail below, camera controller 32 can determine that a trigger condition exists when camera controller 32 receives certain signals from a docking station 10.
Camera controller 32 can also be used to generate metadata in association with each image. Metadata is data that is related to a digital image or a portion of a digital image but that is not necessarily observable in the image itself. In this regard, camera controller 32 can receive signals from signal processor 26, from camera user input system 34, from sensors 36 or from docking station 10 and, optionally, generate metadata based upon such signals. The metadata can include but is not limited to information such as the time, date and location that the original image was captured, the type of image sensor 24, mode setting information, integration time information, taking lens unit setting information that characterizes the process used to capture the original image and processes, methods and algorithms used by digital camera 12 to form the original image. The metadata can also include but is not limited to any other information determined by camera controller 32 or stored in any memory in digital camera 12 such as information that identifies digital camera 12, and/or instructions for rendering or otherwise processing the digital image with which the metadata is associated. The metadata can also comprise an instruction to incorporate a particular message into digital image when presented. Such a message can, for example, be a text message to be rendered when the digital image is rendered. The metadata can also include audio signals. The metadata can further include digital image data. In one embodiment of the invention, where digital zoom is used to form the digital image from a subset of the captured image, the metadata can include image data from portions of an image that are not incorporated into the subset of the digital image that is used to form the digital image. The metadata can also include any other information entered into digital camera 12 or supplied to digital camera 12 by way of docking station 10.
The digital images and optional metadata, can be stored in a compressed form. For example where the digital image comprises a sequence of still images, the still images can be stored in a compressed form such as by using the JPEG (Joint Photographic Experts Group) ISO 10918-1 (ITU-T.81) standard. This JPEG compressed image data is stored using the so-called “Exif” image format defined in the Exchangeable Image File Format version 2.2 published by the Japan Electronics and Information Technology Industries Association JEITA CP-3451. Similarly, other compression systems such as the MPEG-4 (Motion Pictures Export Group) or Apple QuickTime™ standard can be used to store digital image data in a video form. Other image compression and storage forms can be used.
The digital images and metadata can be stored in a memory such as memory 40. Memory 40 can include conventional memory devices including solid state, magnetic, optical or other data storage devices. Memory 40 can be fixed within digital camera 12 or it can be removable. In the embodiment of
In the embodiment shown in
Signal processor 26 and/or camera controller 32 are also adapted to form evaluation images which have an appearance that corresponds to a captured original image stored in digital camera 12 and that are further adapted for presentation on display 30. This allows users of digital camera 12 to view the evaluation images. Such original images can include, for example, images that have been captured by image capture system 22, and/or that were otherwise obtained such as by way of communication module 54 and/or stored in a memory such as memory 40 or removable memory 48.
Display 30 can comprise, for example, a color liquid crystal display (LCD), organic light emitting display (OLED) also known as an organic electro-luminescent display (OELD) or other type of video display. Display 30 can be external as is shown in
Signal processor 26 and/or camera controller 32 can also cooperate to generate other images such as text, graphics, icons and other information for presentation on display 30 that can allow interactive communication between camera controller 32 and a user of digital camera 12, with display 30 providing information to the user of digital camera 12 and the user of digital camera 12 using user input system 34 to interactively provide information to digital camera 12. Digital camera 12 can also have other displays such as a segmented LCD or LED display (not shown) which can also permit signal processor 26 and/or camera controller 32 to provide information to a user. This capability is used for a variety of purposes such as establishing modes of operation, entering control settings, user preferences, and providing warnings and instructions to a user of digital camera 12. Other systems such as known systems and actuators for generating audio signals, vibrations, haptic feedback and other forms of signals can also be incorporated into digital camera 12 for use in providing information, feedback and warnings to the user of digital camera 12.
Typically, display 30 has less imaging resolution than image sensor 24. Accordingly, signal processor 26 reduces the resolution of an original image when forming evaluation images adapted for presentation on display 30. Down sampling and other conventional techniques for reducing the overall imaging resolution can be used. For example, resampling techniques such as are described in commonly assigned U.S. Pat. No. 5,164,831 “Electronic Still Camera Providing Multi-Format Storage Of Full And Reduced Resolution Images” filed by Kuchta et al. on Mar. 15, 1990, can be used. The evaluation images can optionally be stored in a memory such as memory 40. The evaluation images can be adapted to be provided to an optional display driver 28 that can be used to drive display 30. Alternatively, the evaluation images can be converted into signals that can be transmitted by signal processor 26 in a form that directly causes display 30 to present the evaluation images. Where this is done, display driver 28 can be omitted.
Imaging operations that can be used to obtain an original image using image capture system 22 of digital camera 12 include a capture process and can optionally also include a composition process and a verification process.
During the composition process, camera controller 32 provides an electronic viewfinder effect on display 30. In this regard, camera controller 32 and/or signal processor 26, cooperate with image sensor 24, user interface 96 and sensors 36 to determine settings for image capture system 22, to capture preview digital images and to present corresponding evaluation images on display 30.
In the embodiment shown in
In the embodiment of
During the verification process, an evaluation image corresponding to the original digital image is optionally formed for presentation on display 30 by signal processor 26. In one alternative embodiment, signal processor 26 converts each image signal into a digital image and then derives the corresponding evaluation image from the archival digital image. The corresponding evaluation image is supplied to display 30 and is presented for a period of time. This permits a user to verify that the archival digital image has a preferred appearance.
Original images can also be obtained by digital camera 12 in ways other than image capture. For example, original images can by conveyed to digital camera 12 when such images are recorded on a removable memory that is operatively associated with memory interface 50. Alternatively, original images can be received by way of communication module 54. For example, where communication module 54 is adapted to communicate by way of a cellular telephone network, communication module 54 can be associated with a cellular telephone number or other identifying number that for example another user of the cellular telephone network such as the user of a telephone equipped with a digital camera can use to establish a communication link with digital camera 12 and transmit images which can be received by communication module 54.
As is shown in
Base 70 is typically made of durable material, such as molded plastic or metal. As an example, one version of the docking station can have a base 70 with a height ranging from 0.5 inch to 4 inches, a width ranging from 3 inches to 7 inches, and a length ranging from 6 inches to 12 inches. The compact version allows docking station 10 to be used on any conventional table and without the need for additional equipment or stands.
Base 70 has a dock controller 76. Dock controller 76 can comprise a microprocessor, micro-controller, application specific integrated circuit or combination of discrete electronic components operable to perform the functions that are described herein.
In one aspect, dock controller 76 is adapted to communicate with camera controller 32 to enable photography of subject object 11. This can be done in a variety of ways. For example, in the embodiment shown in
Dock controller 76 is also adapted to communicate with one or more remote devices 90 including a computer, a PDA, a printer, another camera, a web interface, a computer network, a cellular phone, a copy machine, a fax machine, or combinations of these devices by way of either a physical connection 92 such as a Universal Serial Bus port or a wireless connection by way of a wireless communication circuit 82.
As illustrated in
Dock controller 76 is further adapted to communicate with a dock user interface 96. Dock user interface 96 can comprise any form of transducer or other device capable of receiving an input from a user and converting this input into a form that can be used by dock controller 76 in operating docking station 10. For example, dock user interface 96 can comprise a touch screen input, a touch pad input, a 4-way switch, a 6-way switch, an 8-way switch, a stylus system, a trackball system, a joystick system, a voice recognition system, a gesture recognition system or other such systems. As shown in the embodiment of
Docking station 10 can optionally incorporate an output system 99 that provides human perceptible signals when instructed to do so by dock controller 76. Output system 99 can comprise visual output systems such as pixellated displays, segmented display or other displays capable of presenting graphic or video images, so that a user can look at an evaluation image and optionally use user interface 96 to send signals that can be used by dock controller 76 during operation of digital camera 12. In other aspects, output system 99 can provide other forms of visual output signs to a user such as graphic symbols, illuminated lights, text messages and the like using appropriate signaling technology of this type. In still other aspects, output system 99 can comprise audio systems capable of generating human perceptible audio warnings and indications such as simulated human speech, chimes, alerts, music and the like.
Continuing with
In the embodiment that is illustrated in
As shown in
Object mount 100 is typically made from a durable material, including but not limited to, a polypropylene, polyethelene or a static resistant material. Usable metals for the object mount 100 can be coated so that the object mount 100 does not scratch the slide or the negatives disposed in the object mount. Object mount 100 can be adapted to receive and position subject object 11 as shown in
Although in the embodiment of
As noted above, base 70 has a digital camera receiving area 71 that is adapted to position digital camera 12 with lens system 23 of digital camera 12 directed at object mount 100 and optionally, further directed at light source 86 so that the light emitted from the light source 86 shines though second window 110, then through the image on light transmissive medium 16 then through the first window 108 to lens system 23 of digital camera 12. Digital camera receiving area 71 can be a surface that is adapted to simply allow digital camera 12 to be positioned thereon or it can be more complex with camera holding structures of conventional design provided thereon to provide more support for digital camera 12.
When digital camera 12 is positioned in receiving area 71 on docking station 10, a communication link is established between camera controller 32 and dock controller 76. When camera controller 32 detects such a communication link to dock controller 76, camera controller 32 communicates with dock controller 76 to determine a mode of docked operation. In the embodiment shown in
A selection of the docked image capture mode can be made using user input system 34 of digital camera 12 and/or using dock user interface 96. When such a selection is made, camera controller 32 and docking station controller 76 cooperate to initiate a docked image capture process which includes a setup process and an image capture process and can optionally include a composition process and a verification process.
During the setup process, camera controller 32 is adapted to use wired or wireless communications with dock controller 76 to obtain therefrom any data stored therein that can be useful to camera controller 32 in making or determining settings for image capture system 22 and lens system 23 for the capture of an image of subject object 11. In one aspect of the invention, memory 40 contains data that camera controller 32 can use for such setup whenever camera controller 32 detects a communication link to a docked controller 76. This allows camera controller 32 to set exposure settings and other settings for image capture system 22 and/or to make lens settings for lens system 23 when camera controller 32 establishes communication with dock controller 76.
In some embodiments, it may be necessary for camera controller 32 to obtain data characterizing recommended image capture settings from docking station 10 or to obtain data from docking station 10 that camera controller 32 can use to determine appropriate image capture settings. Examples of such data or information include, but are not limited to, data that is indicative of anticipated exposure settings, data that identifies whether the subject image is to be flash photographed or not, data that indicates whether the subject image will be backlit, and data that indicates subject distance information that can be used by camera controller 32 to determine appropriate lens focus or lens distance settings. In still another aspect of the invention, docking station controller 76 can have a memory (not shown) that contains programming data stored therein that is executable by camera controller 32 to allow camera controller 32 to determine settings for image capture system 22 in a manner that is appropriate for image capture in docking station 10. Such executable programming data can provide a permanent update to the camera “firmware” or can simply provide executable programming code that can be executed only while camera 12 is docked in docking station 10.
Camera controller 32 can optionally provide information to dock controller 76 that can help dock controller 76 control docking station 10, including but not limited to, information that will allow dock controller 76 to determine preferred illumination intensities for light source 86. Camera controller 32 can also provide other information to dock controller 76 such as data representing user actuation of user input system 34 as may be useful to dock controller 76. In this way, user input system 34 of camera 12 can be used to provide user input for use by docking station controller 76 without requiring that docking station 10 inherently incorporate such user input systems. Other data that can be provided by camera controller 32 to dock controller 76 includes data that identifies ways in which transferred image data can be shared or otherwise used. Any other form of metadata described herein can also be shared by camera controller 32 with dock controller 76 as may be necessary or useful in executing various functions of docking station 10.
Camera controller 32 has made appropriate settings to image capture system 22 and/or made any other settings for digital camera 12, and dock controller 76 has caused, for example, illumination system 84 to radiate a preferred amount of light for image capture, digital camera 12 can optionally provide the image composition process as generally described above. In the composition process, image capture system 22 captures images and provides these captured images as evaluation images that are presented on display 30 of digital camera 12 and/or optionally on a display is incorporated as part of output system 99. A user can use these evaluation images to verify that the settings determined by camera controller 32 yield evaluation images having an appropriate appearance and, if desired, make any manual adjustments to the settings or to the arrangement of the subject object 11 and image capture system 22. When the user determines that conditions are appropriate, a user can cause an archival image to be captured, for example, by depressing capture button 60 or otherwise using user input system 34 or user interface 96 to send signals to camera controller 32 and/or dock controller 76 from which camera controller 32 can determine need to generate a trigger signal. When this occurs, camera controller 32 generates a trigger signal and image capture system 22 captures a digital archival image. In an optional verification step, an evaluation image that reflects the appearance of the archival image can be presented on display 30 or by any display that is incorporated as part of output system 99 for user review and approval.
The archival image can be stored in memory 40, and/or shared with an external device by way of a removable memory 48, such as a card, or communication module 54. Optionally, the archival image can be communicated to a docking controller 76 which can transmit the captured digital image to a remote device 90 using a connection 92 or using wireless communication circuit 82. Where docking station 10 incorporates a printer as described above, or some other form of printer including, but not limited to, an inkjet printer, a laser printer, an electro-photographic printer or any other form of image printing technology, the captured image can be simultaneously printed.
Camera controller 32 can optionally be adapted to have a recognition feature that allows the camera controller 32 alone or in combination with one of signal processor 26 and/or dock controller 76 to recognize the nature of a subject object 11 during the composition mode. For example, such recognition can help to determine if subject object 11 is a film negative, a slide or a non-transmissive object such as a coin. Such information can be useful in determining exposure settings, or other settings for image capture system 22. Data indicative of such information can be provided to dock controller 76, for example, to allow illumination decisions to be made for operating light source 86.
In one embodiment, camera controller 32 is adapted to receive a signal from a selected input of user input system 34 or user interface 96 and, in response thereto, to automatically execute a setup process for digital camera 12 while dock controller 76 performs a setup process for docking station 10. Camera controller 32 is further adapted to automatically execute an image capture process in response to the signal from the selected input. So that a user can, with a single touch of one button such as capture button 98 or other input, cause an image to be captured of subject object 11 positioned in object mount 100.
Optionally, user interface 96 can be adapted to enable a user to input an address, so that the controller 32 can send the captured image via the network to the designated address or to more than one address input in this manner. The network can be, for example, the Internet, a wireless connection, or phone. In one embodiment of the invention, user interface 96 or user input 34 can have a share or send button that causes an image to be sent via the network to an address so that such an image can be shared with one push of such button. User interface 96 can also be adapted to allow the user to input other information, such as the date of an image of which a digital archival image is being captured, the names of persons in the image captured, the number of related slides corresponding to the captured image, or other such information. Where such information is provided, dock controller 76 and/or camera controller 32 can be adapted to convert such input into metadata and automatically associate this metadata with the archival image, or to apply such information for other uses.
In an alternative embodiment, base 70 can have an object mount 100 that is adapted to support a carrier or carousel instead of a flat object mount 100 illustrated in
As shown in
Dock optical system 130 can include a macro lens such as the popular macro lenses used with 35 mm single lens reflex cameras that have, in that application focal lengths of around 50 mm. Such a macro lens works in combination with lens system 23 to permit lens extension until the subject object 11 is enlarged to about a preferred size on image sensor 24. Such a macro lens can be adapted to have special “flat-field” optics so that it can be used to copy flat, 2-dimensional subject such as stamps, pictures, slides, transparencies and other two-dimensional objects without distorting them. As is known in the art, such a macro lens typically has a relatively small maximum aperture which limits use of such a macro-lens to fairly high light image capture situations. However, unless instructed otherwise, a controller 32 for digital camera 12 will typically make adjustments to exposure settings assuming that such a macro lens system is not present.
In other embodiments where such a macro-lens is provided without being adapted with flat field optics, docking station controller 76 can provide data to camera controller 32 that causes camera controller 32 and/or signal processor 26 to apply digital processing methods such as well known edge sharpening algorithms, when appropriate, to simulate the effects of the use of a macro-lens that is adapted with flat field optics.
Dock optical system 130 can also incorporate filters as required to enhance the appearance of the image. Here too, the use of such filters can trigger the need to adjust image capture settings in ways that may not be apparent to a casual user within normal operating parameters to a conveniently programmed digital camera.
Accordingly, the use of a conventional digital camera 12 with a dock optical system 130 requires user intervention to define exposure and other parameters that ensure that camera controller 32 is adapted to provide images that have exposure levels that are acceptable to a user.
In accordance with one embodiment of the invention, when camera controller 32 and docking station controller 76 determine that an image is to be captured in the near-photography mode using light that has been modified by a dock optical system 130, camera controller 32 and docking station controller 76 can cooperate to determine appropriate camera exposure settings based upon prior analysis of the effects of the dock optical system 130, and known characteristics of lens system 23. Optionally, camera controller 32 and dock controller 76 can be adapted to determine appropriate light output patterns or settings for light source 86 to ensure that, during image capture, the near object is illuminated in a manner that permits image capture system 22 of digital camera 12 to capture an image having a desired appearance.
In the embodiment of
Similarly, as shown in
Similarly, as shown in
Further, it will be appreciated that while object mount 100 has been illustrated as comprising a holder type of object mount 100, in other embodiments object mount 100 can comprise a surface 150, such as a pedestal, or other type of structure capable of receiving subject object 11 and positioning subject object 11 so that a near object image can be captured thereof by a digital camera 12 positioned in digital camera receiving area 71.
The invention has been described in detail with particular reference to certain preferred embodiments thereof, but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.
