Camera with panoramic scanning range

Information

  • Patent Grant
  • 10645286
  • Patent Number
    10,645,286
  • Date Filed
    Tuesday, February 13, 2018
    6 years ago
  • Date Issued
    Tuesday, May 5, 2020
    4 years ago
Abstract
Cameras with panoramic scanning range comprising a folded digital camera in which an optical path folding element (OPFE) that folds a first optical path from an object or scene into a second optical path substantially parallel with an optical axis of a lens of the folded camera, the OPFE being rotatable around the lens optical axis, and systems incorporating such cameras.
Description
FIELD

Embodiments disclosed herein relate in general to cameras and in particular to cameras based on digital cameras with folded optics.


BACKGROUND

Compact digital cameras having folded optics, also referred to as “folded cameras” or “folded camera modules”, are known, see e.g. Applicant's co-owned international patent application PCT/IB2016/052179. Such folded cameras include a lens, an optical path folding element (OPFE)—normally a prism or mirror—and an image sensor. The OPFE folds a first optical path along a first axis from an object or scene to the OPFE, into a second optical path along a second axis substantially orthogonal to the first axis, the second axis being also an optical axis of the lens and of the folded camera. Some OPFEs are designed to tilt or rotate around the first axis or around a third axis orthogonal to both the first and second axes. There is no known folded camera in which the OPFE is known to rotate around the optical axis of the lens. There are also no known cameras based on folded digital cameras that are capable of 180 degrees or more panoramic scanning.


SUMMARY

In various exemplary embodiments there are provided cameras based on folded digital cameras having a panoramic scanning range. In some embodiments, one or more cameras with panoramic scanning range as described in more detail below may be incorporated in a platform. As used herein, the term “platform” refers to an article of manufacture (also referred to as “system”). The platform may be a mobile device such as a smartphone or a tablet computer (or simply “tablet”), a flying drone, a television (TV) set or display, a personal electronic device (PED), a vehicular system (vehicle), etc. Each of the cameras with panoramic scanning range may provide panoramic views with up to 180 degrees or even up to 360 degrees. When incorporated in a smartphone or tablet, a folded camera with panoramic scanning range may be positioned at an edge of the smartphone or tablet and can be used as either a front camera or as a back camera of the smartphone or tablet.


In some embodiments, a camera with panoramic scanning range as above may be incorporated together with a non-folded camera in a dual-aperture (dual-camera) arrangement. The dual-aperture arrangement may be included in a mobile device such as a smartphone or a tablet, a flying drone, a television set, other PEDs and/or other devices/systems such as vehicular systems.


In exemplary embodiments, there are provided cameras comprising a folded digital camera that includes an image sensor having an image sensor area, a lens having a lens optical axis, and an OPFE that folds a first optical path from an object or scene to a second optical path, the second optical path being substantially parallel with the lens optical axis, the OPFE being rotatable around the lens optical axis relative to the image sensor. In some embodiments, the OPFE may be a prism. In other embodiments, the OPFE may be a mirror.


In an exemplary embodiment, the OPFE is rotatable in an angle of up to 180 degrees.


In an exemplary embodiment, the OPFE is rotatable in an angle of up to 360 degrees.


In an exemplary embodiment, the rotation of the OPFE around the lens optical axis provides a plurality of different images.


In an exemplary embodiment, the plurality of different images represents at least a section of a panoramic view.


In an exemplary embodiment, the lens has a lens image circle bound by the image sensor area.


In an exemplary embodiment, the OPFE has a plurality of positions and the camera has a field of view (FOV) bound by the lens image circle for each OPFE position.


In an exemplary embodiment, a camera is operative to record a video stream with a changing or adaptive field of view.


In some exemplary embodiments, a camera further comprises an actuator for rotating the OPFE around the lens optical axis. The actuator may be a step motor or a voice coil motor.


In some exemplary embodiments, the lens is a folded lens.


In some exemplary embodiments, the lens is fixedly attached to the OPFE and is rotatable together with the OPFE around the lens optical axis relative to the image sensor.


In some exemplary embodiments, the folded lens is fixedly attached to the OPFE and is rotatable together with the OPFE around the lens optical axis relative to the image sensor.


In exemplary embodiments there are provided platforms, comprising: a first folded digital camera with a first field of view (FOV), the first folded digital camera including a first lens having a first lens optical axis, a first image sensor and a first OPFE that folds a first optical path from an object or scene to a second optical path, the second optical path being substantially parallel with the lens optical axis, the first OPFE being rotatable around the first lens optical axis relative to the first image sensor.


In some exemplary embodiments, a platform further comprises a second folded digital camera with a second FOV larger than the first FOV. In some exemplary embodiments, the first folded digital camera is operational to change the first FOV autonomously.


In some exemplary embodiments, a platform further comprises a second folded digital camera that includes a second lens having a second lens optical axis and a second OPFE that folds the first optical path from an object or scene to the second optical path, the second OPFE being rotatable around the second lens optical axis. In an exemplary embodiment of such a platform, the first and second lens optical axes are parallel.


In some exemplary embodiments, the platform is a mobile device. In some such embodiments, the first folded digital camera is positioned on a side close to a mobile device edge and the first folded camera is operative to acquire a panoramic view of approximately 180 degrees. In some such embodiments, the first folded camera is operable as a front camera of the mobile device. In some such embodiments, the first folded camera is operable as a back camera of the mobile device. In some exemplary embodiments, the mobile device is a smartphone or a tablet.


In some exemplary embodiments, the platform is a mobile device, the first and second folded digital cameras are positioned on opposite sides close to respective mobile device edges, and each of the first and second folded cameras is operative to acquire a panoramic view of approximately 180 degrees. In some such embodiments, each of the first and second folded cameras is operable as a front camera or a back camera of the mobile device. In some such embodiments, each of the first and second folded cameras is operable as a back camera of the mobile device.


In some exemplary embodiments, the lens is fixedly attached to the OPFE and is rotatable together with the OPFE around the lens optical axis relative to the image sensor. In some exemplary embodiments, the lens is a folded lens.


In some exemplary embodiments, the platform is a flying drone. In some flying drone embodiments, at least one OPFE is operational to rotate at least 180 degrees.


In some exemplary embodiments, the platform is a television set.


In some exemplary embodiments, the platform is a personal electronic device.


In some exemplary embodiments, the platform is a vehicular system.


In some exemplary embodiments, there are provided methods comprising: providing a folded digital camera that includes an image sensor, a lens having a lens optical axis, and an OPFE that folds a first optical path from an object or scene to a second optical path, the second optical path being substantially parallel with the lens optical axis, the camera having an original orientation; rotating the OPFE around the lens optical axis relative to the image sensor in a first rotation direction to set the first optical path in a desired first direction; and taking an image.


In an exemplary method embodiment, a method further comprises digitally rotating the taken image back to the original orientation.


In some exemplary method embodiments, the rotating the OPFE around the lens optical axis in a first rotation direction to set the first optical path in a desired first direction includes rotating the OPFE to set the first optical path in a plurality of desired first directions in a first range of up to 180 degrees, and the taking an image includes taking an image at each direction of the plurality of desired first directions, thereby obtaining a matching first plurality of taken images. In one such method embodiment, the method further comprises constructing a first panoramic image from the first plurality of taken images.


In some exemplary method embodiments, a method further comprises rotating the OPFE around the lens optical axis in a second rotation direction opposite to the first rotation direction, to set the first optical path in a plurality of desired second directions in a second range of up to 180 degrees opposite to the first range, and the taking an image includes taking an image at each direction of the plurality of desired second directions, thereby obtaining a matching second plurality of taken images. In some such method embodiments, the method further comprises constructing a second panoramic image from the first plurality of taken images. In one such method embodiment, the method further comprises combining the first and second panoramic images into a combined panoramic image.


In some method embodiments, the lens is fixedly attached to the OPFE and the rotating the OPFE around the lens optical axis relative to the image sensor in a first rotation direction to set the first optical path in a desired first direction includes rotating the lens together with the OPFE.


In some method embodiments, the lens is a folded lens.





BRIEF DESCRIPTION OF THE DRAWINGS

Non-limiting examples of embodiments disclosed herein are described below with reference to figures attached hereto that are listed following this paragraph. Identical structures, elements or parts that appear in more than one figure are generally labeled with a same numeral in all the figures in which they appear. The drawings and descriptions are meant to illuminate and clarify embodiments disclosed herein, and should not be considered limiting in any way.



FIG. 1A shows schematically an exemplary embodiment of a camera with panoramic scanning range that includes a folded camera in an isometric view, according to presently disclosed subject matter;



FIG. 1B shows the folded camera of FIG. 1A in a “zero” prism position;



FIG. 1C shows the folded camera of FIG. 1A with its prism rotated around the folded camera optical axis by 30 degrees from the zero position;



FIG. 1D shows the folded camera of FIG. 1A with its prism rotated around the folded camera optical axis by 180 degrees from the zero position;



FIG. 1E shows schematically another exemplary embodiment of a camera with panoramic scanning range that includes a folded camera in which the lens is fixedly attached to a prism, according to presently disclosed subject matter;



FIG. 1F shows schematically yet another exemplary embodiment of a camera with panoramic scanning range that includes a folded camera with a folded lens, according to presently disclosed subject matter;



FIG. 2A illustrates schematically a rectangular image sensor smaller than, and bounded by an image circle;



FIG. 2B illustrates schematically a square image sensor larger than, and bounding an image circle;



FIG. 3A illustrates the use of a camera with panoramic scanning range to scan and acquire a panoramic view, according to presently disclosed subject matter;



FIG. 3B shows 16 separate image sections of the panoramic view of FIG. 3A, each image section having a respective image circle and a respective cropped region defined by a 9:16 rectangle;



FIG. 3C shows the image sections of FIG. 3B stitched into a panoramic image;



FIG. 4A shows in an isometric view an exemplary embodiment of a smartphone that includes a camera with panoramic scanning range, according to presently disclosed subject matter;



FIG. 4B shows an enlarged cutout of a section of the smartphone in FIG. 4A;



FIG. 4C shows in an isometric back view an exemplary embodiment of a smartphone that includes a dual-aperture camera having an upright camera and a camera with a folded camera with panoramic scanning range, according to presently disclosed subject matter;



FIG. 4D shows an enlarged cutout of a section of the smartphone in FIG. 4C;



FIG. 5A shows in an isometric view an exemplary embodiment of a smartphone that includes a camera with panoramic scanning range having two folded cameras, according to presently disclosed subject matter;



FIG. 5B shows a back view of the smartphone in FIG. 5A;



FIG. 6A shows in isometric view from a top side a flying drone that carries a camera with panoramic scanning range comprising a folded camera as in FIG. 1A;



FIG. 6B shows the drone of FIG. 6A in isometric view from a bottom side;



FIG. 6C shows an enlargement of a section marked in FIG. 6B;



FIG. 6D shows a side view of drone of FIG. 6A along a cut A-B in FIG. 6A;



FIG. 7A shows in isometric view from a bottom side a flying drone that carries two cameras with panoramic scanning range, each camera comprising a folded camera as in FIG. 1A;



FIG. 7B shows the drone of FIG. 7A from a side view;



FIG. 8A shows a front view of a TV set that includes a camera with panoramic scanning range comprising a folded camera as in FIG. 1A together with an upright camera, according to presently disclosed subject matter;



FIG. 8B shows an enlargement of a corner section in the TV set of FIG. 8A in a front view;



FIG. 8C shows an enlargement of a corner section in the TV set of FIG. 8A in an isometric view;



FIG. 9A shows in (a) a screen as seen by a first user and in (b) a screen as seen by a second user of FOVT and FOVW in a dual-camera arrangement included in a TV during autonomous FOVT tracking, with a first FOVT position on FOVW;



FIG. 9B shows the same screens as in FIG. 9A, but with FOVT in a second position on FOVW;



FIG. 9C shows the same screens as in FIG. 9A, but with FOVT in a third position on FOVW.





DETAILED DESCRIPTION

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding. However, it will be understood by those skilled in the art that the presently disclosed subject matter may be practiced without these specific details. In other instances, well-known methods have not been described in detail so as not to obscure the presently disclosed subject matter.


It is appreciated that certain features of the presently disclosed subject matter, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the presently disclosed subject matter, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable sub-combination.


The term “processing unit” as disclosed herein should be broadly construed to include any kind of electronic device with data processing circuitry, which includes for example a computer processing device operatively connected to a computer memory (e.g. digital signal processor (DSP), a microcontroller, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), etc.) capable of executing various data processing operations.


Furthermore, for the sake of clarity the term “substantially” is used herein to imply the possibility of variations in values within an acceptable range. According to one example, the term “substantially” used herein should be interpreted to imply possible variation of up to 10% over or under any specified value. According to another example, the term “substantially” used herein should be interpreted to imply possible variation of up to 5% over or under any specified value. According to a further example, the term “substantially” used herein should be interpreted to imply possible variation of up to 2.5% over or under any specified value.


In the text below, “digital rotation” is used to describe an image rotation by software, to distinguish from just “rotation” used to describe physical rotation of an optical element.



FIG. 1A shows schematically an exemplary embodiment of a folded camera (also referred to as “folded camera module”) numbered 100 in an isometric view. An orthogonal X-Y-Z coordinate (“axis”) system shown applies also to all following drawings. This coordinate system is exemplary. Camera 100 includes a lens assembly (or simply “lens”) 102, an optical path folding element (OPFE) 104 and an image sensor 106. OPFE 104 folds a first optical path along an axis 108 substantially parallel to the X axis (in the exemplary coordinate system), the first optical path being from an object, scene or panoramic view section 114 to the OPFE, into a second optical path along an axis 110 substantially parallel to the Z axis (in the exemplary coordinate system). Axis 110 is the optical axis of lens 102. Image sensor 106 has a plane normal aligned with (parallel to) axis 110. That is, image sensor 106 lies in a plane objects that lie generally in planes substantially orthogonal to the first optical path. Image sensor 106 outputs an output image. The output image may be processed by an image signal processor (ISP—not shown) for demosaicing, white balance, lens shading correction, bad pixel correction, and other processes known in the art of ISP design. In some embodiments, the ISP may be part of image sensor 106. Optical axis 110 may also be referred to herein as “folded camera optical axis”.


In some embodiments, camera 100 may further include a focus or autofocus (AF) mechanism (not shown), allowing to move (or “shift” or “actuate”) lens 102 along axis 110, such that is can focus images from objects at various distances on image sensor 106. For simplicity, the description continues with reference only to AF, with the understanding that it also covers regular (manual) focus. The AF actuation mechanism is typically of a voice coil motor (VCM) type, i.e. a “VCM actuator”. Such actuation mechanisms are known in the art and disclosed for example in Applicant's co-owned international patent applications PCT/IB2015/056004 and PCT/IB2016/055308. This is however a non-limiting example, and the AF mechanism may be of other types, such as a stepper motor, a shape memory alloy (SMA) actuator, or other types known in the art. In some embodiments, camera 100 may include an optical image stabilization (OIS) actuation mechanism (not shown) in addition to, or instead of, the AF actuation mechanism. OIS may be achieved for example by shifting the lens in two directions in the X-Y plane, compensating for tilt of camera 100 around Z and X directions. A three degrees of freedom (DOF) OIS+focus actuation mechanism (which performs two movements for OIS and one for AF) is typically of VCM type and known in the art, for example as disclosed in international patent application PCT/US2013/076753 and in US patent application 2014/0327965. More information on auto-focus and OIS in a compact folded camera may be found in Applicant's co-owned international patent applications PCT/IB2016/052143, PCT/IB2016/052179 and PCT/IB2016/053335.


In contrast with known folded camera modules (see e.g. PCT/IB2016/052179) camera 100 is designed to rotate OPFE 104 around axis 110 (the Z axis) relative to the image sensor, i.e. in the X-Y plane in the coordinate system shown, a rotation indicated by an arrow 112. OPFE 104 can rotate in an angle range as required by optical requirements (see below), in some cases by up to 180 degrees and in other cases by up to 360 degrees. FIG. 1C shows OPFE 104 after rotation by 30 degrees and FIG. 1D shows OPFE 104 after rotation by 180 degrees from an original “zero rotation” position (shown in FIG. 1B). The 30 degree and 180 degree rotated positions are exemplary of a range of many rotation positions. The rotation of OPFE around axis 110 may be driven, for example, by a stepper motor or by a VCM actuator 116. A stepper motor that may be used for rotating an OPFE as disclosed herein is for example stepper motor model FDM0620 manufactured by Dr. Fritz Faulhaber Gmbh and Co. Together, camera 100 and actuator 116 form a camera 130 with panoramic scanning range (FIG. 1A). An example of rotational VCM motor is provided for an example in co-owned international patent applications PCT/IB2017/052383 and PCT/IB2017/057706.


In some embodiments, lens 102 may be optically axisymmetric. Therefore, any rotation of lens 102 around axis 102 does not change any optical property of the system and in particular the image. In such embodiments, lens 102 may rotate together with OPFE 104. In particular, as shown in an exemplary embodiment in FIG. 1E, in a camera 150, lens 102 may be fixedly attached (e.g. glued) to OPFE 104 to form a lens-OPFE assembly 152. In some embodiments as shown in an exemplary embodiment in FIG. 1F, in a camera 160, the lens and the OPFE may be combined to form a “folded lens” 162 (see e.g. the Asus ZenFone Zoom), in which some lens elements (such as, for example, a single lens element 164 shown in FIG. 1F) are positioned before the OPFE in the optical path from an imaged object, along axis 108, while other lens elements are positioned after the OPFE in the optical path toward the image sensor (i.e. as elements of lens assembly 102). In such embodiments, the entire lens-OPFE assembly (FIG. 1E) and/or folded lens (FIG. 1F) will rotate relative to the image sensor. In all the description below and above, cameras 150 and/or 160 may replace camera 100 in applications and/or analysis and/or methods of operation.


The rotation of OPFE 104 around axis 110 relative to the image sensor by “α” degrees will cause axis 108 (which, in its original state before rotation, is positioned perpendicular to the X axis in the coordinate system shown) to rotate in the X-Y plane and will result in two changes in the image on the image sensor: a) rotation of the center field-of-view (FOV) by α degrees and b) rotation of the image on image sensor (known in the art as “Roll” effect) by α degrees.


The rotation of the OPFE as described above and the consequent rotation of the first optical path allows photography of a panoramic view. Camera 100 has a panoramic scanning range. The panoramic view (and the scanning range) may be of up to 360 degrees. A plurality of photographs also referred to below as “sub-views”, “image sections” or “view sections”, each sub-view reflecting or related to a particular OPFE rotation positions, may be acquired and “stitched” into a “panoramic output image”.


An “image circle” of lens 102 (see also FIGS. 2A and 2B) is defined as a circle on the sensor plane of the image sensor in which a sufficient amount of light arrives relative to the amount of light arriving at the sensor plane at a point 150 (the point where axis 110 meets the image sensor plane). Only sensor pixels within the image circle can be used for the output image. Sensor pixels outside of the image circle do not receive enough light from the object/scene photographed and are too noisy for a quality image. The image circle may be larger or smaller than the image sensor.



FIG. 2A shows one embodiment, in which (for example) a rectangular (with 3:4 edges length ratio) image sensor 106 is smaller than an image circle 120, the image circle thus “bounding” the image sensor. Here, an edge of the rectangle is smaller than the diameter of the image circle, and all the sensor pixels are inside the image circle. FIG. 2B shows another embodiment, in which (for example) a square image sensor 106 is larger than an image circle 120, the image sensor thus “bounding” the image circle. Here, an edge of the square is larger than the diameter of the image circle. Images obtained on an image sensor are typically of rectangular shape, typically with a 3:4 or 9:16 ratio between long edge and short edge dimensions. In camera 100, image sensor 106 is larger than image circle 120, i.e. as in FIG. 2B. The minimal dimensions of image sensor 106 in FIG. 2B are exemplary of minimal required sensor dimensions. Therefore, in camera 100, the largest possible image is any bound rectangle with edges that lie on image circle 120. This rectangle can be rotated by a certain degree relative to the edges of image sensor 106 under different actions, as explained below.



FIG. 2B also shows three examples of rectangular (with 3:4 edges length ratio) output image orientations taken from sensor 106: an image 202 in a “landscape” orientation (the longer rectangle edge is horizontal), an image 204 rotated by 30 degrees vs. the landscape orientation and an image 206 in a “portrait” orientation (the longer rectangle edge is vertical). Camera 100 may be used to output any single frame in a portrait or landscape orientation. Selection of orientation may be done digitally using an attached processing unit (not shown).



FIGS. 3A, 3B and 3C illustrate an embodiment of a method of use (usage) of camera 100 to scan and acquire a panoramic view. FIG. 3A shows a panoramic view with a 360 degrees (horizontal axis) by 56 degrees (vertical axis) field of view (FOV). The panoramic view is shown in a flattened image, with the understanding that the flattened image represents a circular view of 360 degrees. FIG. 3B shows 16 separate view sections (sub-views) “a” to “o” of the panoramic view, captured on image sensor 106 when OPFE 104 is rotated from 0 to 360 degrees with a jump size of 22.5 degrees between sub-views along the horizontal axis. In other cases, other jump sizes may be used between sub-views. FIG. 3B further shows, for each sub-view, a respective image circle 120 and a respective cropping region 132 defined by a 9:16 rectangle. For simplicity, image circle 120 is marked only on sub-view “a” and a cropping region 132 is marked only on sub-view “e”. A cropping region provides a cropped image. The cropped image may be digitally rotated to the original orientation (sub-view “i”). Camera 100 may output any of sub-views “a” to “o” (or any sub-view at any rotation degree) as a single frame after appropriate rotation. FIG. 3C shows the reconstruction (“stitching”) of the sub-view cropped images of FIG. 3B into a panoramic image. In general, the stitching of two adjacent images, each of which has a given FOV, requires the following actions: (a) detecting tilt, rotation, shift and other deviations between the two images; (b) digitally transforming at least one image into a corrected image to correct the deviations; and (c) digitally combining two adjacent corrected images into a single image with a continuous FOV larger than the two original given FOVs. Digital rotation and stitching actions may be done using software, as known in the art. The software may run on a processing unit (not shown), which may be part of the chipset of a device or system carrying camera 130 with camera 100, or which may operate camera 100 remotely. Note that any two adjacent images overlap over a small area, for example 10%-30% of the FOV of a single image. The overlap area is necessary for the actions in (a) and (c). In other cases, camera 100 may be used to scan a panoramic view with different FOV, for example less than 360 degrees in the horizontal axis, and/or for example more or less than 56 degrees in the vertical axis.


In another embodiment, camera 100 may be used to a take video, or a preview of a video on an operating device screen (see below operating devices examples). The scanning capability allows selection of the video field of view. An example below (in FIGS. 8-9) shows a video recording and stream with scanning FOV capability. Upon rotation of OPFE 104, the FOV of the camera changes and a rotated image is obtained on sensor 106. Camera 100 and an attached processing unit (not shown) may digitally anti-rotate the frames and video stream to show video aligned with original orientation (as presented in FIGS. 3 and 9). The final output may show a video movie with a scanning range of up to 360 degrees.


Several non-limiting examples (for example a smartphone and a flying drone) of platforms carrying or including a system such as camera 120 with camera 100 are presented in FIGS. 4-7.



FIG. 4A shows in an isometric view and FIG. 4B shows an enlarged cutout section of an exemplary embodiment, wherein the platform is a mobile device such as a smartphone numbered 400. Smartphone 400 includes a camera 430 with panoramic scanning range comprising a folded camera 100′ like camera 100 and a stepper motor or VCM like actuator 116. Camera 100′ is positioned on a side close to an edge 402 of smartphone 400. Cutout 404 provided in an enlarged view in FIG. 4B shows the main components of camera 100′ (lens 102, prism 104 and sensor 106) and of stepper motor or VCM actuator 116. Prism 104 is positioned behind a protective panoramic transparent screen 406, made, for example, from glass or plastic. In smartphone 400, one usage of camera 100′ can be to take 180-degree panoramic pictures, an action illustrated by dotted semicircle arrow 408. In an exemplary use embodiment, camera 100′ in smartphone 400 can be used as both “front camera” and “back camera” of the smartphone, where “front camera” and “back camera” have meanings well known in the art.


In some embodiments, a folded camera with panoramic scanning range disclosed herein may be positioned together with a non-folded (“upright”) non-scanning camera in a dual-aperture (or “dual-camera”) camera arrangement. The non-folded camera may have a FOV smaller than, equal to or larger than the FOV of the folded camera. Dual-aperture cameras including a folded camera and a non-folded camera are described for example in PCT/IB2015/056004. The dual camera may be positioned in a smartphone or in other personal electronic devices. The upright camera may be either a front camera or a back camera of the smartphone.



FIG. 4C shows an isometric back view and FIG. 4D shows an enlarged cutout section of an exemplary embodiment of a smartphone numbered 400′ that includes such a dual-aperture camera 450 having an upright camera 412 and a camera 430 with a folded camera with panoramic scanning range 100′. All other components shown are similar to those in FIGS. 4A and 4B. While camera 412 is shown as a back camera of smartphone 400′, in other embodiments (as mentioned) it can be a front camera.



FIG. 5A shows in an isometric view and FIG. 5B shows in a back view an exemplary embodiment wherein the platform is a smartphone numbered 500. Smartphone 500 includes a camera 530 with panoramic scanning range comprising two folded cameras like camera 100, as well as associated stepper motors or VCM actuators (not shown). The two cameras, marked 100a and 100b are positioned for example on two opposite sides close to respective edges 502a and 502b of smartphone 500. FIG. 5B also shows the main components of each camera (lens 102, prism 104 and sensor 106). The respective stepper motors or VCM actuators are not shown to simplify the figures. Each prism 104 is positioned behind a respective protective panoramic transparent screen 506, made for example glass or plastic. In smartphone 500, one usage of each camera 100a and 100b can be to take two respective 180 degree panoramic pictures, which can then be stitched into one 360 degree panoramic picture.



FIGS. 6A-D illustrate another exemplary platform carrying camera 100. In FIGS. 6A-D, the platform is a flying drone 600 that carries a camera 630 with panoramic scanning range comprising a folded camera 100′ like camera 100 and a stepper motor or VCM actuator like actuator 116. Drone 600 is used to fly and take pictures from high above. FIG. 6A shows the drone in isometric view from top, FIG. 6B shows the drone in isometric view from bottom and FIG. 6C is an enlargement of a section marked in FIG. 6B. FIG. 6D, is a cut side view of drone 600 along a cut A-B in FIG. 6A. In system 600, the camera is used to change an angle of photography (marked in FIG. 6D) between: +90 degrees (looking up, 651) to 0 degrees (looking forward, 652) to −90 degrees (looking down, 653) and to −120 degrees (looking down and slightly back, 654), i.e. for a total of 210 degrees. In other examples, the scanning range may change. Camera 100 within drone 600 may autonomously track objects, as described below with reference to FIGS. 8 and 9, as well as in co-owned international patent application PCT/IB2016/057366.



FIGS. 7A-B show yet another flying drone 700 that carries two cameras 730a and 730b with panoramic scanning range, each camera comprising a folded camera like camera 100 and a stepper motor or VCM actuator like actuator 116 (not shown). In this configuration the two cameras can take pictures in a scanning range of 360 degrees. The angles of photography indicated by arrows are similar to the ones in FIG. 6D.



FIGS. 8A-C illustrate yet another exemplary platform carrying camera 100. In FIGS. 8A-C, the platform is a television (TV) set 800. TV set 800 includes a camera 830 with panoramic scanning range comprising a folded camera like camera 100 and a stepper motor or VCM actuator like actuator 116. TV set 800 further includes an upright camera 812 and a TV screen 802. Upright camera 812 includes a lens 814 and an image sensor 816. TV set 800 may further include one or more speakers and one or more microphones as well as other well-known components (not shown).



FIG. 8A shows TV set 800 in a front view. FIG. 8B shows an enlargement of a corner section in TV set 800 and cameras 812 and 830 in front view. FIG. 8C shows an isometric view of the section shown in FIG. 8B, and the possible rotation of a prism 104 in camera 830. Camera 812 may have a wide (large) FOV, for example 120-180 degrees on the horizontal plane, and is referred to also as Wide camera 812. The FOV of camera 812 is referred to as Wide FOV (FOVW). In TV set 800, camera 830 may have a Tele (narrow) FOV, for example (non-limiting) 30-80 degrees on the horizontal plane. Thus, in TV set 800, camera 830 may be referred to also as “Tele camera” 830, and the FOV of camera 830 may be referred to as Tele FOV (FOVT).


In TV set 800, cameras 812 and 830 are located on a top left corner of TV set 800. In other exemplary embodiments, cameras 812 and 830 may be located in other positions, such as the top center, the left or right side, the bottom side or even beyond screen 802 described below. In another exemplary embodiment, cameras 812 and 830 may be located in a separate module (box) outside of the TV set, connected via cable or via cordless connection.


In an exemplary use embodiment, TV set 800 may be used for video-conferencing as follows: a first user (person) located in a first location may use TV set 800 to communicate with a second user (person) located in a second location. The second user may use any electronic device comprising a screen, for example a TV, a smartphone, a personal computer, a notebook or laptop computer, etc. In an exemplary embodiment, cameras 830 and 812 may be used to video record the first user, while the second user may see recordings from both cameras 830 and 812 on his screen.


TV set 800 may be used for automatic movement or “automatic adjustment” of FOVT for e.g. tracking a subject in an autonomous manner. A camera mode that performs automatic Tele FOV movement to track an object or subject of interest is referred to herein as autonomous Tele FOV tracking”. An exemplary autonomous tracking system and method applicable herein is described in PCT/IB2016/057366 for a smartphone system. The autonomous FOVT movement is in response to recognition (through e.g. camera 812) of the object or subject of interest, and the Tele image focuses on and displays the object or subject of interest. The object recognition may be performed using any of the methods known in the art.


An example of autonomous FOVT tracking scenario using TV set 800 is shown in FIGS. 9A-9C. In an exemplary embodiment, camera 812 may take a wide view image of the first location. Camera 830 may then track a first user 902 as he/she moves around and within the FOVW of camera 812 during the video conference. The second user may see on his screen either (1) the wide FOV, (2) the Tele FOV after tracking, or (3) both the Wide and Tele FOVs. It is assumed that the Tele camera can change its FOV by tilting the prism to track the object of interest. Ideally, the camera will track the object such that it is as close as possible to the center of the adjustable Tele FOV.



FIG. 9A shows the FOVs of Tele camera 830 and Wide camera 812 during autonomous FOVT tracking, with a first FOVT position on FOVW. FIG. 9B shows the FOVs of FIG. 9A with a second FOVT position on FOVW. FIG. 9C shows the FOVs of FIG. 9A with a third FOVT position on FOVW. In each of these figures, the object of interest is a first user 902.


In the particular example shown, one sees side-by-side views of video streams from both cameras: column (a) shows a screen 900a with FOVW and FOVT seen by the first user, while column (b) shows on the right a screen 900b of the second user with FOVW and FOVT and on the left a magnified Tele view (image) of part of the face and body of first user 902 and part of the background. In general, the FOVT in (a) may show the first user (as shown), the second user or another feature from the scene. The FOVT in (a) showing the first user should therefore not be considered as limiting. In general, the second user (not shown) may see on his screen a video stream from either camera 812 or camera 830, or both cameras 812 and 830 simultaneously (e.g. side-by-side). In case the second user sees only one steam of video, switching between streams may be done using smooth transition techniques, as described for example in co-owned U.S. Pat. No. 9,185,291.


The decision to track the first user may be taken by the first user, the second user (e.g., by remote control usage) or automatically (e.g., using face detection). It is assumed that the Tele camera can change its FOV by rotating the prism to track the object of interest, as disclosed above. Ideally, the camera will track the object such that it is as close as possible to the center of the adjustable FOVT as seen in the left side of (b) in each figure.


Video streams from cameras 812 and/or camera 830 may be recorded for later usage, which may include additional processing such as image processing, video stream blending, etc.


While this disclosure has been described in terms of certain embodiments and generally associated methods, alterations and permutations of the embodiments and methods will be apparent to those skilled in the art. For example, while a camera and a folded camera with panoramic scanning range are described as exemplarily incorporated in smartphones, flying drones and television sets, such cameras and folded cameras may be also incorporated in other platforms such as vehicles, or incorporated in platforms other than smartphones, for example tablets, laptop computers, phablets, desktop computers, smart speakers, smart watches, electronic book readers, smart glasses, smart helmets, baby monitors, augmented reality systems, virtual reality systems, advanced driving assistance systems (ADAS), etc. The disclosure is to be understood as not limited by the specific embodiments described herein, but only by the scope of the appended claims.


Unless otherwise stated, the use of the expression “and/or” between the last two members of a list of options for selection indicates that a selection of one or more of the listed options is appropriate and may be made.


It should be understood that where the claims or specification refer to “a” or “an” element, such reference is not to be construed as there being only one of that element.


All references mentioned in this specification are herein incorporated in their entirety by reference into the specification, to the same extent as if each individual reference was specifically and individually indicated to be incorporated herein by reference. In addition, citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the present invention.

Claims
  • 1. A system, comprising: a) a first folded digital camera with a first field of view (FOV), the first folded digital camera including a first lens having a first lens optical axis, a first image sensor and a first optical path folding element (OPFE) that folds a first optical path from an object or scene to a second optical path, wherein the second optical path is substantially parallel with the first lens optical axis, and wherein the first OPFE is rotatable around the first lens optical axis relative to the first image sensor; andb) a second folded digital camera with a second FOV, wherein the second folded digital camera includes a second lens having a second lens optical axis and a second OPFE that folds the first optical path from the object or scene to the second optical path, wherein the first and second lens optical axes are parallel and wherein the second OPFE is rotatable around the second lens optical axis.
  • 2. The platform of claim 1, wherein the first folded digital camera is operational to change the first FOV autonomously.
  • 3. A method, comprising: a) providing a first folded digital camera with a first field of view (FOV), the first folded digital camera including a first lens having a first lens optical axis, a first image sensor and a first optical path folding element (OPFE) that folds a first optical path from an object or scene to a second optical path, wherein the second optical path is substantially parallel with the first lens optical axis, wherein the folded digital camera has a first original orientation and wherein the first OPFE is rotatable around the first lens optical axis relative to the first image sensor;b) providing a second folded digital camera with a second FOV, wherein the second folded digital camera includes a second lens having a second lens optical axis and a second OPFE that folds the first optical path from the object or scene to the second optical path, wherein the first and second lens optical axes are parallel and wherein the second OPFE is rotatable around the second lens optical axis;c) rotating the first OPFE around the first lens optical axis relative to the first image sensor in a first rotation direction to set the first optical path in a desired first direction; andd) taking an image.
  • 4. The method of claim 3, wherein the rotating the first OPFE around the first lens optical axis in a first rotation direction to set the first optical path in a desired first direction includes rotating the first OPFE to set the first optical path in a plurality of desired first directions in a first range of up to 180 degrees, and wherein the taking an image includes taking an image at each direction of the plurality of desired first directions, thereby obtaining a matching first plurality of taken images.
  • 5. The method of claim 4, further comprising constructing a first panoramic image from the first plurality of taken images.
  • 6. The method of claim 4, further comprising rotating the first OPFE around the first lens optical axis in a second rotation direction opposite to the first rotation direction, to set the first optical path in a plurality of desired second directions in a second range of up to 180 degrees opposite to the first range, and wherein the taking an image includes taking an image at each direction of the plurality of desired second directions, thereby obtaining a matching second plurality of taken images.
  • 7. The method of claim 6, further comprising constructing a second panoramic image from the first plurality of taken images.
  • 8. The method of claim 7, further comprising combining the first and second panoramic images into a combined panoramic image.
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a 371 application from international application PCT/IB2018/050885, and claims the benefit of U.S. Provisional patent applications No. 62/471,662 filed Mar. 15, 2017 and 62/560,684 filed Sep. 20, 2017, both of which are incorporated herein by reference in their entirety.

PCT Information
Filing Document Filing Date Country Kind
PCT/IB2018/050885 2/13/2018 WO 00
Publishing Document Publishing Date Country Kind
WO2018/167581 9/20/2018 WO A
US Referenced Citations (244)
Number Name Date Kind
4199785 McCullough et al. Apr 1980 A
5005083 Grage et al. Apr 1991 A
5032917 Aschwanden Jul 1991 A
5051830 von Hoessle Sep 1991 A
5248971 Mandl Sep 1993 A
5287093 Amano et al. Feb 1994 A
5394520 Hall Feb 1995 A
5436660 Sakamoto Jul 1995 A
5444478 Lelong et al. Aug 1995 A
5459520 Sasaki Oct 1995 A
5657402 Bender et al. Aug 1997 A
5682198 Katayama et al. Oct 1997 A
5768443 Michael et al. Jun 1998 A
5926190 Turkowski et al. Jul 1999 A
5940641 McIntyre et al. Aug 1999 A
5982951 Katayama et al. Nov 1999 A
6101334 Fantone Aug 2000 A
6128416 Oura Oct 2000 A
6148120 Sussman Nov 2000 A
6208765 Bergen Mar 2001 B1
6268611 Pettersson et al. Jul 2001 B1
6549215 Jouppi Apr 2003 B2
6611289 Yu et al. Aug 2003 B1
6643416 Daniels et al. Nov 2003 B1
6650368 Doron Nov 2003 B1
6680748 Monti Jan 2004 B1
6714665 Hanna et al. Mar 2004 B1
6724421 Glatt Apr 2004 B1
6738073 Park et al. May 2004 B2
6741250 Furlan et al. May 2004 B1
6750903 Miyatake et al. Jun 2004 B1
6778207 Lee et al. Aug 2004 B1
7002583 Rabb, III Feb 2006 B2
7015954 Foote et al. Mar 2006 B1
7038716 Klein et al. May 2006 B2
7199348 Olsen et al. Apr 2007 B2
7206136 Labaziewicz et al. Apr 2007 B2
7248294 Slatter Jul 2007 B2
7256944 Labaziewicz et al. Aug 2007 B2
7305180 Labaziewicz et al. Dec 2007 B2
7339621 Fortier Mar 2008 B2
7346217 Gold, Jr. Mar 2008 B1
7365793 Cheatle et al. Apr 2008 B2
7411610 Doyle Aug 2008 B2
7424218 Baudisch et al. Sep 2008 B2
7509041 Hosono Mar 2009 B2
7533819 Barkan et al. May 2009 B2
7619683 Davis Nov 2009 B2
7738016 Toyofuku Jun 2010 B2
7773121 Huntsberger et al. Aug 2010 B1
7809256 Kuroda et al. Oct 2010 B2
7880776 LeGall et al. Feb 2011 B2
7918398 Li et al. Apr 2011 B2
7964835 Olsen et al. Jun 2011 B2
7978239 Deever et al. Jul 2011 B2
8115825 Culbert et al. Feb 2012 B2
8149327 Lin et al. Apr 2012 B2
8154610 Jo et al. Apr 2012 B2
8238695 Davey et al. Aug 2012 B1
8274552 Dahi et al. Sep 2012 B2
8390729 Long et al. Mar 2013 B2
8391697 Cho et al. Mar 2013 B2
8400555 Georgiev et al. Mar 2013 B1
8439265 Ferren et al. May 2013 B2
8446484 Muukki et al. May 2013 B2
8483452 Ueda et al. Jul 2013 B2
8514491 Duparre Aug 2013 B2
8547389 Hoppe et al. Oct 2013 B2
8553106 Scarff Oct 2013 B2
8587691 Takane Nov 2013 B2
8619148 Watts et al. Dec 2013 B1
8803990 Smith Aug 2014 B2
8896655 Mauchly et al. Nov 2014 B2
8976255 Matsuoto et al. Mar 2015 B2
9019387 Nakano Apr 2015 B2
9025073 Attar et al. May 2015 B2
9025077 Attar et al. May 2015 B2
9041835 Honda May 2015 B2
9137447 Shibuno Sep 2015 B2
9185291 Shabtay et al. Nov 2015 B1
9215377 Sokeila et al. Dec 2015 B2
9215385 Luo Dec 2015 B2
9270875 Brisedoux et al. Feb 2016 B2
9286680 Jiang et al. Mar 2016 B1
9344626 Silverstein et al. May 2016 B2
9360671 Zhou Jun 2016 B1
9369621 Malone et al. Jun 2016 B2
9413930 Geerds Aug 2016 B2
9413984 Attar et al. Aug 2016 B2
9420180 Jin Aug 2016 B2
9438792 Nakada et al. Sep 2016 B2
9485432 Medasani et al. Nov 2016 B1
9578257 Attar et al. Feb 2017 B2
9618748 Munger et al. Apr 2017 B2
9681057 Attar et al. Jun 2017 B2
9723220 Sugie Aug 2017 B2
9736365 Laroia Aug 2017 B2
9736391 Du et al. Aug 2017 B2
9768310 Ahn et al. Sep 2017 B2
9800798 Ravirala et al. Oct 2017 B2
9851803 Fisher et al. Dec 2017 B2
9894287 Qian et al. Feb 2018 B2
9900522 Lu Feb 2018 B2
9927600 Goldenberg et al. Mar 2018 B2
20020005902 Yuen Jan 2002 A1
20020030163 Zhang Mar 2002 A1
20020063711 Park et al. May 2002 A1
20020075258 Park et al. Jun 2002 A1
20020122113 Foote Sep 2002 A1
20020167741 Koiwai et al. Nov 2002 A1
20030030729 Prentice et al. Feb 2003 A1
20030093805 Gin May 2003 A1
20030160886 Misawa et al. Aug 2003 A1
20030202113 Yoshikawa Oct 2003 A1
20040008773 Itokawa Jan 2004 A1
20040012683 Yamasaki et al. Jan 2004 A1
20040017386 Liu et al. Jan 2004 A1
20040027367 Pilu Feb 2004 A1
20040061788 Bateman Apr 2004 A1
20040240052 Minefuji et al. Dec 2004 A1
20050013509 Samadani Jan 2005 A1
20050046740 Davis Mar 2005 A1
20050157184 Nakanishi et al. Jul 2005 A1
20050168834 Matsumoto et al. Aug 2005 A1
20050200718 Lee Sep 2005 A1
20060054782 Olsen et al. Mar 2006 A1
20060056056 Ahiska et al. Mar 2006 A1
20060125937 LeGall et al. Jun 2006 A1
20060170793 Pasquarette et al. Aug 2006 A1
20060175549 Miller et al. Aug 2006 A1
20060187310 Janson et al. Aug 2006 A1
20060187322 Janson et al. Aug 2006 A1
20060187338 May et al. Aug 2006 A1
20070024737 Nakamura et al. Feb 2007 A1
20070126911 Nanjo Jun 2007 A1
20070177025 Kopet et al. Aug 2007 A1
20070188653 Pollock et al. Aug 2007 A1
20070189386 Imagawa et al. Aug 2007 A1
20070257184 Olsen et al. Nov 2007 A1
20070285550 Son Dec 2007 A1
20080017557 Witdouck Jan 2008 A1
20080024614 Li et al. Jan 2008 A1
20080025634 Border et al. Jan 2008 A1
20080030592 Border et al. Feb 2008 A1
20080030611 Jenkins Feb 2008 A1
20080084484 Ochi et al. Apr 2008 A1
20080117316 Orimoto May 2008 A1
20080218611 Parulski et al. Sep 2008 A1
20080218612 Border et al. Sep 2008 A1
20080218613 Janson et al. Sep 2008 A1
20080219654 Border et al. Sep 2008 A1
20090086074 Li et al. Apr 2009 A1
20090122195 Van Baar et al. May 2009 A1
20090122406 Rouvinen et al. May 2009 A1
20090128644 Camp et al. May 2009 A1
20090219547 Kauhanen et al. Sep 2009 A1
20090252484 Hasuda et al. Oct 2009 A1
20090295949 Ojala Dec 2009 A1
20090324135 Kondo et al. Dec 2009 A1
20100013906 Border et al. Jan 2010 A1
20100020221 Tupman et al. Jan 2010 A1
20100060746 Olsen et al. Mar 2010 A9
20100097444 Lablans Apr 2010 A1
20100103194 Chen et al. Apr 2010 A1
20100165131 Makimoto et al. Jul 2010 A1
20100238327 Griffith et al. Sep 2010 A1
20100283842 Guissin et al. Nov 2010 A1
20100321494 Peterson et al. Dec 2010 A1
20110058320 Kim et al. Mar 2011 A1
20110064327 Dagher et al. Mar 2011 A1
20110080487 Venkataraman et al. Apr 2011 A1
20110128288 Petrou et al. Jun 2011 A1
20110164172 Shintani et al. Jul 2011 A1
20110229054 Weston et al. Sep 2011 A1
20110234853 Hayashi et al. Sep 2011 A1
20110234881 Wakabayashi et al. Sep 2011 A1
20110242286 Pace et al. Oct 2011 A1
20110242355 Goma et al. Oct 2011 A1
20120026366 Golan et al. Feb 2012 A1
20120062780 Morihisa Mar 2012 A1
20120069235 Imai Mar 2012 A1
20120075489 Nishihara Mar 2012 A1
20120105579 Jeon et al. May 2012 A1
20120154614 Moriya et al. Jun 2012 A1
20120196648 Havens et al. Aug 2012 A1
20120229663 Nelson et al. Sep 2012 A1
20120249815 Bohn et al. Oct 2012 A1
20120287315 Huang et al. Nov 2012 A1
20120320467 Baik et al. Dec 2012 A1
20130002928 Imai Jan 2013 A1
20130016427 Sugawara Jan 2013 A1
20130093842 Yahata Apr 2013 A1
20130135445 Dahl et al. May 2013 A1
20130182150 Asakura Jul 2013 A1
20130201360 Song Aug 2013 A1
20130202273 Ouedraogo et al. Aug 2013 A1
20130235224 Park et al. Sep 2013 A1
20130250150 Malone et al. Sep 2013 A1
20130258044 Betts-LaCroix Oct 2013 A1
20130270419 Singh et al. Oct 2013 A1
20130321668 Kamath Dec 2013 A1
20140009631 Topliss Jan 2014 A1
20140049615 Uwagawa Feb 2014 A1
20140118584 Lee et al. May 2014 A1
20140192238 Attar et al. Jul 2014 A1
20140192253 Laroia Jul 2014 A1
20140218587 Shah Aug 2014 A1
20140313316 Olsson et al. Oct 2014 A1
20140362242 Takizawa Dec 2014 A1
20150002683 Hu et al. Jan 2015 A1
20150042870 Chan et al. Feb 2015 A1
20150092066 Geiss et al. Apr 2015 A1
20150154776 Zhang et al. Jun 2015 A1
20150162048 Hirata et al. Jun 2015 A1
20150195458 Nakayama et al. Jul 2015 A1
20150215516 Dolgin Jul 2015 A1
20150237280 Choi et al. Aug 2015 A1
20150242994 Shen Aug 2015 A1
20150271471 Hsieh et al. Sep 2015 A1
20150286033 Osborne Oct 2015 A1
20150316744 Chen Nov 2015 A1
20150334309 Peng et al. Nov 2015 A1
20160044250 Shabtay et al. Feb 2016 A1
20160070088 Koguchi Mar 2016 A1
20160154202 Wippermann et al. Jun 2016 A1
20160154204 Lim et al. Jun 2016 A1
20160212358 Shikata Jul 2016 A1
20160241751 Park Aug 2016 A1
20160291295 Shabtay et al. Oct 2016 A1
20160295112 Georgiev et al. Oct 2016 A1
20160301840 Du et al. Oct 2016 A1
20160353008 Osborne Dec 2016 A1
20160353012 Kao et al. Dec 2016 A1
20170019616 Zhu et al. Jan 2017 A1
20170214846 Du et al. Jul 2017 A1
20170214866 Zhu et al. Jul 2017 A1
20170242225 Fiske Aug 2017 A1
20170264829 Zhou Sep 2017 A1
20170289458 Song et al. Oct 2017 A1
20180024329 Goldenberg et al. Jan 2018 A1
20180120674 Avivi et al. May 2018 A1
20180150973 Tang et al. May 2018 A1
20180241922 Baldwin Aug 2018 A1
20180295292 Lee et al. Oct 2018 A1
Foreign Referenced Citations (27)
Number Date Country
101276415 Oct 2008 CN
102739949 Oct 2012 CN
103024272 Apr 2013 CN
103841404 Jun 2014 CN
1536633 Jun 2005 EP
2523450 Nov 2012 EP
S59191146 Oct 1984 JP
04211230 Aug 1992 JP
H07318864 Dec 1995 JP
08271976 Oct 1996 JP
2003298920 Oct 2003 JP
2004133054 Apr 2004 JP
2005099265 Apr 2005 JP
2006238325 Sep 2006 JP
2007228006 Sep 2007 JP
2007306282 Nov 2007 JP
2008076485 Apr 2008 JP
2013106289 May 2013 JP
20090058229 Jun 2009 KR
20100008936 Jan 2010 KR
20140014787 Feb 2014 KR
101477178 Dec 2014 KR
20150118012 Oct 2015 KR
2014072818 May 2014 WO
2017025822 Feb 2017 WO
2017037688 Mar 2017 WO
2018130898 Jul 2018 WO
Non-Patent Literature Citations (16)
Entry
Statistical Modeling and Performance Characterization of a Real-Time Dual Camera Surveillance System, Greienhagen et al., Publisher: IEEE, 2000, 8 pages.
A 3MPixel Multi-Aperture Image Sensor with 0.7 μm Pixels in 0.11μm CMOS, Fife et al., Stanford University, 2008, 3 pages.
Dual camera intelligent sensor for high definition 360 degrees surveillance, Scotti et al., Publisher: IET, May 9, 2000, 8 pages.
Dual-sensor foveated imaging system, Hua et al., Publisher: Optical Society of America, Jan. 14, 2008, 11 pages.
Defocus Video Matting, McGuire et al., Publisher: ACM SIGGRAPH, Jul. 31, 2005, 11 pages.
Compact multi-aperture imaging with high angular resolution, Santacana et al., Publisher: Optical Society of America, 2015, 10 pages.
Multi-Aperture Photography, Green et al., Publisher: Mitsubishi Electric Research Laboratories, Inc., Jul. 2007, 10 pages.
Multispectral Bilateral Video Fusion, Bennett et al., Publisher: IEEE, May 2007, 10 pages.
Super-resolution imaging using a camera array, Santacana et al., Publisher: Optical Society of America, 2014, 6 pages.
Optical Splitting Trees for High-Precision Monocular Imaging, McGuire et al., Publisher: IEEE, 2007, 11 pages.
High Performance Imaging Using Large Camera Arrays, Wilburn et al., Publisher: Association for Computing Machinery, Inc., 2005, 12 pages.
Real-time Edge-Aware Image Processing with the Bilateral Grid, Chen et al., Publisher: ACM SIGGRAPH, 2007, 9 pages.
Superimposed multi-resolution imaging, Carles et al., Publisher: Optical Society of America, 2017, 13 pages.
Viewfinder Alignment, Adams et al., Publisher: Eurographics, 2008, 10 pages.
Dual-Camera System for Multi-Level Activity Recognition, Bodor et al., Publisher: IEEE, Oct. 2014, 6 pages.
Engineered to the task: Why camera-phone cameras are different, Giles Humpston, Publisher: Solid State Technology, Jun. 2009, 3 pages.
Related Publications (1)
Number Date Country
20190394396 A1 Dec 2019 US
Provisional Applications (2)
Number Date Country
62560684 Sep 2017 US
62471662 Mar 2017 US