US20120057052A1 - System and method for effectively optimizing zoom settings in a digital camera - Google Patents
System and method for effectively optimizing zoom settings in a digital camera Download PDFInfo
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- US20120057052A1 US20120057052A1 US13/199,645 US201113199645A US2012057052A1 US 20120057052 A1 US20120057052 A1 US 20120057052A1 US 201113199645 A US201113199645 A US 201113199645A US 2012057052 A1 US2012057052 A1 US 2012057052A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
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- This invention relates generally to techniques for capturing image data, and relates more particularly to a system and method for effectively optimizing zoom settings in a digital camera.
- enhanced device capability to perform various advanced operations may provide additional benefits to a system user, but may also place increased demands on the control and management of various device components.
- an enhanced electronic device that effectively captures digital image data may benefit from an effective implementation because of the large amount and complexity of the digital data involved.
- a depth of field (DOF) manager may perform an optical zoom function with an optical zoom module to physically adjust a lens unit of the digital camera to an optimal optical zoom value.
- the DOF manager may then utilize a digital zoom module to perform a digital zoom function to compensate for the foregoing optical zoom function to thereby produce an image that possesses the same apparent zoom characteristics as initially desired by a camera user.
- DOF depth of field
- the DOF manager initially reads an optical zoom value for the optical zoom module.
- the DOF manager also reads a current target distance to a desired target object.
- the DOF manager accesses optimal zoom values (an optical-zoom value and a corresponding digital-zoom value) from a zoom-value look-up table that was created previously according to specified criteria.
- the DOF manager then applies the optimal zoom values from the lookup table to the optical zoom module and the digital zoom module.
- an image sensor of the digital camera captures optimized images with the optimized zoom values (optical zoom value and digital zoom value).
- the present invention therefore provides an improved system and method for effectively optimizing zoom settings in a digital camera.
- FIG. 1 is a block diagram for one embodiment of a camera device, in accordance with the present invention.
- FIG. 2 is a block diagram for one embodiment of the capture subsystem of FIG. 1 , in accordance with the present invention
- FIG. 3 is a block diagram for one embodiment of the control module of FIG. 1 , in accordance with the present invention.
- FIG. 4 is a block diagram for one embodiment of the memory of FIG. 3 , in accordance with the present invention.
- FIG. 5 is a diagram illustrating depth of field, in accordance with one embodiment of the present invention.
- FIG. 6 is a diagram illustrating a digital zoom procedure, in accordance with one embodiment of the present invention.
- FIG. 7 is a graph illustrating optimized zoom values, in accordance with one embodiment of the present invention.
- FIGS. 8A-8B are a flowchart of method steps for optimizing depth of field, in accordance with a first embodiment of the present invention.
- FIG. 9 is a flowchart of method steps for optimizing depth of field, in accordance with a second embodiment of the present invention.
- the present invention relates to an improvement in image data capture techniques.
- the following description is presented to enable one of ordinary skill in the art to make and use the invention and is provided in the context of a patent application and its requirements.
- Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the generic principles herein may be applied to other embodiments.
- the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features described herein.
- the present invention comprises a system and method for effectively optimizing zoom settings in a digital camera, and includes a digital zoom module that performs a digital zoom function, and an optical zoom module that controls a lens unit of the digital camera to perform an optical zoom function.
- a depth of field manager performs a zoom-setting optimization procedure to select optimal zoom values for the optical zoom module and the digital zoom module to thereby optimize image quality characteristics of images captured by the camera device.
- camera device 110 may include, but is not limited to, a capture subsystem 114 , a system bus 116 , and a control module 118 .
- capture subsystem 114 may be optically coupled to a photographic target 112 , and may also be electrically coupled via system bus 116 to control module 118 .
- camera device 110 may include other components in addition to, or instead of, certain of those components discussed in conjunction with the FIG. 1 embodiment.
- the present invention may alternately be embodied in any appropriate type of electronic device other than the camera device 110 of FIG. 1 .
- camera device 110 may alternately be implemented as an imaging device, a computer device, or a consumer electronics device.
- control module 118 may instruct capture subsystem 114 via system bus 116 to capture image data representing target 112 .
- the captured image data may then be transferred over system bus 116 to control module 118 , which may responsively perform various processes and functions with the image data.
- System bus 116 may also bi-directionally pass various status and control signals between capture subsystem 114 and control module 118 .
- capture subsystem 114 comprises, but is not limited to, a shutter 218 , a lens unit 220 , an image sensor 224 , red, green, and blue (R/G/B) amplifiers 228 , an analog-to-digital (A/D) converter 230 , an interface 232 , and an optical zoom controller 236 .
- capture subsystem 114 may readily include other components in addition to, or instead of, certain those components discussed in conjunction with the FIG. 2 embodiment.
- capture subsystem 114 captures image data corresponding to target 112 via reflected light impacting image sensor 224 along optical path 236 .
- Image sensor 224 which may include a charged-coupled device (CCD), may responsively generate a set of image data representing the target 112 .
- the image data may then be routed through red, green, and blue amplifiers 228 , A/D converter 230 , and interface 232 . From interface 232 , the image data passes over system bus 116 to control module 118 for appropriate processing and storage.
- Other types of image capture sensors such as CMOS or linear arrays are also contemplated for capturing image data in conjunction with the present invention.
- CMOS complementary metal-coupled device
- lens unit 220 may be implemented in any effective manner that support a mechanical zoom function that is controlled by optical zoom 236 in response to commands from control module 118 ( FIG. 1 ).
- control module 118 FIG. 1
- the utilization and functionality of capture subsystem is further discussed below in conjunction with FIGS. 5-9 .
- control module 118 includes, but is not limited to, a viewfinder 308 , a central processing unit (CPU) 344 , a memory 346 , and one or more input/output interface(s) (I/O) 348 .
- Viewfinder 308 , CPU 344 , memory 346 , and I/O 348 are each coupled to, and communicate, via common system bus 116 that also communicates with capture subsystem 114 .
- control module 118 may include other components in addition to, or instead of, certain of those components discussed in conjunction with the FIG. 3 embodiment.
- CPU 344 may be implemented to include any appropriate microprocessor device. Alternately, CPU 344 may be implemented using any other appropriate technology. For example, CPU 344 may be implemented to include certain application-specific integrated circuits (ASICs) or other appropriate electronic devices.
- Memory 346 may be implemented as one or more appropriate storage devices, including, but not limited to, read-only memory, random-access memory, and various types of non-volatile memory, such as floppy disc devices, hard disc devices, or flash memory.
- I/O 348 may provide one or more effective interfaces for facilitating bi-directional communications between camera device 110 and any external entity, including a system user or another electronic device. I/O 348 may be implemented using any appropriate input and/or output devices. The operation and utilization of control module 118 are further discussed below in conjunction with FIGS. 4 through 9 .
- memory 346 may include, but is not limited to, a camera application 412 , an operating system 414 , a depth of field (DOF) manager 416 , a digital zoom module 418 , depth of field (DOF) parameters 420 , zoom values 422 , and image data 424 .
- DOF depth of field
- memory 346 may readily include various other components in addition to, or instead of, those components discussed in conjunction with the FIG. 4 embodiment.
- camera application 412 may include program instructions that are executed by CPU 344 ( FIG. 3 ) to perform various functions and operations for camera device 110 .
- the particular nature and functionality of camera application 412 varies depending upon factors such as the type and particular use of the corresponding camera device 110 .
- operating system 414 preferably controls and coordinates low-level functionality of camera device 110 .
- DOF manager 416 may control and coordinate a zoom optimization procedure to select optimal zoom values 422 for capturing image data 424 .
- the zoom values 422 may include specific settings for digital zoom 418 and optical zoom 236 ( FIG. 2 ).
- DOF parameters 420 may include any appropriate values or information required by DOF manager 416 to optimize zoom values 422 .
- the utilization of DOF manager 416 to perform zoom optimization procedures is further discussed below in conjunction with FIGS. 5-9 .
- FIG. 5 a diagram illustrating depth of field (DOF) is shown, in accordance with one embodiment of the present invention.
- DOF depth of field
- the FIG. 5 diagram is presented for purposes of illustration, and in alternate embodiments, depth of field may include characteristics or parameters in addition to, or instead of, certain of those characteristics or parameters shown in the FIG. 5 example.
- a lens 514 is shown with various relevant distances and parameters defined.
- a camera is typically able to precisely focus on only one plane.
- a point object in any other plane is imaged as a disk rather than a point, and the farther a plane is from the plane of focus, the larger the disk.
- the disk known as a blur spot
- This zone is known as the depth of field (DOF).
- DOF depth of field
- the closest plane is the near limit of the DOF
- the farthest plane is the far limit of the DOF.
- the diameter of a sufficiently small blur spot is known as the circle of confusion.
- the DOF is shown between near limit 526 (defined by distance u n ) and far limit 522 (defined by distance u f ).
- Controlling the size of the aperture controls the size of the blur spot, and the focus determines the position of the DOF.
- the size of the aperture is decreased (or the f-number is increased)
- the size of the defocus blur spot decreases and the DOF increases.
- the aperture may need to be increased and the shutter speed decreased to obtain enough light for adequately capturing images.
- DOF may be maximized by operating camera 110 with the zoom value for optical zoom 236 being set (or zoomed out) as far as possible for capturing the desired target object 112 .
- a target object 112 at distance u from lens 514 is in focus (for example, on image sensor 224 of FIG. 2 ) at focal distance v.
- Target objects at distances u f and u n would be in focus at focal distances u f and u n respectively.
- they are imaged as blur spots.
- the depth of field is affected by the aperture stop diameter d.
- the near and far limits of the DOF are defined by distances u f and u n between vertical axis 522 and vertical axis 526 .
- the DOF may be defined by the following formula:
- u f is the distance of the far object that is in focus
- u n is the distance of the near object that is in focus
- f is the focal length
- u is the object distance
- v is the image distance
- c is the circle of confusion
- d is the aperture diameter
- m is the image magnification (equal to u/v)
- N is the f-number (equal to f/d).
- FIG. 6 a diagram illustrating a digital zoom procedure is shown, in accordance with one embodiment of the present invention.
- the present invention may utilize various other configurations and techniques to implement digital zoom procedures.
- a full-sized image 614 is shown with an exemplary target object (a person) in the center of the frame.
- the FIG. 6 example also shows a smaller zoomed-in image 618 that is enclosed a smaller frame demarcated by a dotted line.
- camera 110 may utilize a digital zoom 418 ( FIG. 4 ) to electronically perform a digital zoom procedure upon the image by utilizing any effective techniques.
- digital zoom 418 may crop or remove the area of full-sized image 614 that falls outside of zoomed-in image 618 .
- Digital zoom 418 may then increase the apparent size of the zoomed-in image 418 to match the original size of full-sized image 614 by utilizing any appropriate techniques.
- digital zoom 418 may duplicate adjacent pixels from zoomed-in image 618 until enough pixels are present to populate zoomed-in image 618 as a full-sized image.
- a DOF manager 416 may advantageously zoom out (lengthen the focal length) of lens unit 220 ( FIG. 2 ) to an optimal optical zoom value.
- DOF manager 416 may then effectively utilize digital zoom 416 to compensate for the foregoing optical zoom-out procedure by performing a digital zoom-in procedure with digital zoom 418 to thereby produce a zoomed-in image 618 that possesses the same apparent zoom characteristics as initially desired by a camera user.
- the derivation of optimal zoom settings is further discussed below in conjunction with FIGS. 7-9 .
- FIG. 7 a graph illustrating optimized zoom values is shown, in accordance with one embodiment of the present invention.
- the FIG. 7 embodiment is presented for purposes of illustration, and in alternate embodiments, zoom values may be optimized with techniques and configurations in addition to, or instead of, certain of those techniques and configurations discussed in conjunction with the FIG. 7 embodiment.
- optical zoom values for optical zoom 236 are shown on a vertical axis
- digital zoom values for digital zoom 418 are shown on a horizontal axis.
- a group of six progressively smaller contours are shown in the FIG. 7 example as being approximately concentric. In other embodiments, any other number of contours or shapes may alternately be utilized.
- each of the contours represents a different level of image quality for an image captured at a given object distance.
- the outermost contour represents the worst image quality. The image quality increases gradually through the series of adjacent contours until an optimal image quality is reached in the center contour.
- the FIG. 7 graph depicts both an unconstrained solution and a constrained solution for identifying the optimal zoom settings for optical zoom 236 and digital zoom 418 .
- the optimal zoom settings may be identified by applying any effective techniques or criteria. For example, optimal zoom settings may be selected to correspond to optimal image quality characteristics (such as optimal image detail or optimal depth of field) for captured images.
- an unconstrained solution identifies the optimal zoom settings as the dark region 718 in the center contour.
- a curve 714 illustrates all possible zoom setting pairs (optical and digital) that satisfy an apparent desired zoom setting from a camera user.
- the optimal zoom settings are identified at the location 722 where curve 714 touches the highest-level contour. Additional techniques for identifying and utilizing optimal zoom settings are further discussed below in conjunction with FIGS. 8-9 .
- FIGS. 8A-8B a flowchart of method steps for optimizing depth of field is shown, in accordance with a first embodiment of the present invention.
- the FIG. 8 embodiment is presented for purposes of illustration, and in alternate embodiments, the present invention may readily utilize various other steps and sequences than those discussed in conjunction with the FIG. 8 embodiment.
- a depth of field (DOF) manager 416 initially reads an optical zoom value for an optical zoom 236 that controls a lens unit 220 of a camera device 110 .
- an image sensor 224 of the camera device 110 captures and stores image data 424 corresponding to a target object 112 .
- DOF manager 416 reads a current target distance to the target object 112 .
- the DOF manager 416 instructs optical zoom 236 to decrement an optical zoom value by a zoom-out value of ⁇ Z 0 .
- step 830 DOF manager 416 calculates a zoom-in value + ⁇ Z d for incrementing a digital zoom value to thereby compensate for the decrement in the optical zoom value from foregoing step 826 .
- step 834 DOF manager 416 applies the new digital zoom value to digital zoom 418 , and image sensor 224 captures a new image with the updated zoom values (optical zoom value and digital zoom value).
- the FIG. 8A process then advances to step 838 of FIG. 8B through connecting letter “A.”
- step 838 DOF manager 416 determines whether the apparent zoom characteristics of the immediately-preceding zoom values and the current updated zoom values (from step 834 ) are the same. If the apparent zoom characteristics are not the same, then the FIG. 8B process returns to step 830 of FIG. 8A through connecting letter “B.” However, if the apparent zoom characteristics are the same in step 838 , then in step 842 , DOF manager 416 calculates the quality characteristics of the new image from step 834 by utilizing any appropriate techniques and criteria.
- DOF manager 416 determines whether the quality metric for the new image is maximized by utilizing any effect methods. For example, in certain embodiments, the contour graph method of FIG. 7 may be utilized. If the quality metric for the new image is not maximized, then the FIG. 8B process returns to step 826 of FIG. 8A through connecting letter “C.” However, if the quality metric for the new image is maximized in step 846 , then in step 850 , DOF manager 416 may apply the final optical zoom value and the final digital zoom value for utilization by camera device 110 .
- FIG. 9 a flowchart of method steps for optimizing depth of field is shown, in accordance with a second embodiment of the present invention.
- the FIG. 9 embodiment is presented for purposes of illustration, and in alternate embodiments, the present invention may readily utilize various other steps and sequences than those discussed in conjunction with the FIG. 9 embodiment.
- a depth of field (DOF) manager 416 initially reads an optical zoom value for an optical zoom 236 that controls a lens unit 220 of a camera device 110 .
- DOF manager 416 reads a current target distance to the target object 112 .
- the DOF manager 416 accesses optimal zoom values (an optical-zoom value and a corresponding optimal digital-zoom value) from a zoom-value lookup table (LUT) that was created previously according to specified criteria.
- LUT zoom-value lookup table
- the optimal zoom values may be based upon relevant camera parameters including, but not limited to, the initial optical zoom value set by the camera user and the current target distance to a desired target object 112 .
- DOF manager 416 applies the optimal zoom values from the LUT to optical zoom 236 and digital zoom 418 , respectively.
- an image sensor 224 captures a new image with the optimized zoom values (optical zoom value and digital zoom value). The FIG. 9 process may then terminate.
- the present invention therefore provides an improved system and method for effectively optimizing zoom settings in a digital camera.
Abstract
A system and method for effectively optimizing zoom settings in a digital camera includes a digital zoom module that performs a digital zoom function, and an optical zoom module that controls a lens unit of the digital camera to perform an optical zoom function. A depth of field manager performs a zoom-setting optimization procedure to select optimal zoom values for the optical zoom module and the digital zoom module to thereby optimize image quality characteristics of images captured by the camera device.
Description
- This application is a continuation of, and claims priority in, U.S. patent application Ser. No. 12/148,994 entitled “System And Method For Effectively Optimizing Zoom Settings In A Digital Camera” that was filed on Apr. 24, 2008. The foregoing related Application is commonly assigned, and is hereby incorporated by reference.
- 1. Field of the Invention
- This invention relates generally to techniques for capturing image data, and relates more particularly to a system and method for effectively optimizing zoom settings in a digital camera.
- 2. Description of the Background Art
- Implementing effective methods for capturing image data is a significant consideration for designers and manufacturers of contemporary, electronic devices. However, effectively capturing image data with electronic devices may create substantial challenges for system designers. For example, enhanced demands for increased device functionality and performance may require more system processing power and require additional hardware resources. An increase in processing or hardware requirements may also result in a corresponding detrimental economic impact due to increased production costs and operational inefficiencies.
- Furthermore, enhanced device capability to perform various advanced operations may provide additional benefits to a system user, but may also place increased demands on the control and management of various device components. For example, an enhanced electronic device that effectively captures digital image data may benefit from an effective implementation because of the large amount and complexity of the digital data involved.
- Due to growing demands on system resources and substantially increasing data magnitudes, it is apparent that developing new techniques for analyzing image data is a matter of concern for related electronic technologies. Therefore, for all the foregoing reasons, developing effective systems for capturing image data remains a significant consideration for designers, manufacturers, and users of contemporary electronic devices.
- In accordance with the present invention, a system and method are disclosed for effectively optimizing zoom settings in a digital camera. In one embodiment, in order to optimize depth of field characteristics of a captured image, a depth of field (DOF) manager may perform an optical zoom function with an optical zoom module to physically adjust a lens unit of the digital camera to an optimal optical zoom value. The DOF manager may then utilize a digital zoom module to perform a digital zoom function to compensate for the foregoing optical zoom function to thereby produce an image that possesses the same apparent zoom characteristics as initially desired by a camera user.
- In one embodiment of the present invention, the DOF manager initially reads an optical zoom value for the optical zoom module. The DOF manager also reads a current target distance to a desired target object. Then, the DOF manager accesses optimal zoom values (an optical-zoom value and a corresponding digital-zoom value) from a zoom-value look-up table that was created previously according to specified criteria. The DOF manager then applies the optimal zoom values from the lookup table to the optical zoom module and the digital zoom module. Finally, an image sensor of the digital camera captures optimized images with the optimized zoom values (optical zoom value and digital zoom value). The present invention therefore provides an improved system and method for effectively optimizing zoom settings in a digital camera.
-
FIG. 1 is a block diagram for one embodiment of a camera device, in accordance with the present invention; -
FIG. 2 is a block diagram for one embodiment of the capture subsystem ofFIG. 1 , in accordance with the present invention; -
FIG. 3 is a block diagram for one embodiment of the control module ofFIG. 1 , in accordance with the present invention; -
FIG. 4 is a block diagram for one embodiment of the memory ofFIG. 3 , in accordance with the present invention; -
FIG. 5 is a diagram illustrating depth of field, in accordance with one embodiment of the present invention; -
FIG. 6 is a diagram illustrating a digital zoom procedure, in accordance with one embodiment of the present invention; -
FIG. 7 is a graph illustrating optimized zoom values, in accordance with one embodiment of the present invention; -
FIGS. 8A-8B are a flowchart of method steps for optimizing depth of field, in accordance with a first embodiment of the present invention; and -
FIG. 9 is a flowchart of method steps for optimizing depth of field, in accordance with a second embodiment of the present invention. - The present invention relates to an improvement in image data capture techniques. The following description is presented to enable one of ordinary skill in the art to make and use the invention and is provided in the context of a patent application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the generic principles herein may be applied to other embodiments. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features described herein.
- The present invention comprises a system and method for effectively optimizing zoom settings in a digital camera, and includes a digital zoom module that performs a digital zoom function, and an optical zoom module that controls a lens unit of the digital camera to perform an optical zoom function. A depth of field manager performs a zoom-setting optimization procedure to select optimal zoom values for the optical zoom module and the digital zoom module to thereby optimize image quality characteristics of images captured by the camera device.
- Referring now to
FIG. 1 , a block diagram for one embodiment of acamera device 110 is shown, in accordance with the present invention. In theFIG. 1 embodiment,camera device 110 may include, but is not limited to, acapture subsystem 114, asystem bus 116, and acontrol module 118. In theFIG. 1 embodiment,capture subsystem 114 may be optically coupled to aphotographic target 112, and may also be electrically coupled viasystem bus 116 tocontrol module 118. - In alternate embodiments,
camera device 110 may include other components in addition to, or instead of, certain of those components discussed in conjunction with theFIG. 1 embodiment. In addition, in certain embodiments, the present invention may alternately be embodied in any appropriate type of electronic device other than thecamera device 110 ofFIG. 1 . For example,camera device 110 may alternately be implemented as an imaging device, a computer device, or a consumer electronics device. - In the
FIG. 1 embodiment, once a system user has focusedcapture subsystem 114 ontarget 112 and requestedcamera device 110 to capture image data corresponding totarget 112, thencontrol module 118 may instructcapture subsystem 114 viasystem bus 116 to capture imagedata representing target 112. The captured image data may then be transferred oversystem bus 116 tocontrol module 118, which may responsively perform various processes and functions with the image data.System bus 116 may also bi-directionally pass various status and control signals betweencapture subsystem 114 andcontrol module 118. - Referring now to
FIG. 2 , a block diagram for one embodiment of theFIG. 1 capture subsystem 114 is shown, in accordance with the present invention. In theFIG. 2 embodiment,capture subsystem 114 comprises, but is not limited to, ashutter 218, alens unit 220, animage sensor 224, red, green, and blue (R/G/B)amplifiers 228, an analog-to-digital (A/D)converter 230, aninterface 232, and anoptical zoom controller 236. In alternate embodiments,capture subsystem 114 may readily include other components in addition to, or instead of, certain those components discussed in conjunction with theFIG. 2 embodiment. - In the
FIG. 2 embodiment,capture subsystem 114 captures image data corresponding totarget 112 via reflected light impactingimage sensor 224 alongoptical path 236.Image sensor 224, which may include a charged-coupled device (CCD), may responsively generate a set of image data representing thetarget 112. The image data may then be routed through red, green, andblue amplifiers 228, A/D converter 230, andinterface 232. Frominterface 232, the image data passes oversystem bus 116 to controlmodule 118 for appropriate processing and storage. Other types of image capture sensors, such as CMOS or linear arrays are also contemplated for capturing image data in conjunction with the present invention. In theFIG. 2 embodiment,lens unit 220 may be implemented in any effective manner that support a mechanical zoom function that is controlled byoptical zoom 236 in response to commands from control module 118 (FIG. 1 ). The utilization and functionality of capture subsystem is further discussed below in conjunction withFIGS. 5-9 . - Referring now to
FIG. 3 , a block diagram for one embodiment of theFIG. 1 control module 118 is shown, in accordance with the present invention. In theFIG. 3 embodiment,control module 118 includes, but is not limited to, aviewfinder 308, a central processing unit (CPU) 344, amemory 346, and one or more input/output interface(s) (I/O) 348.Viewfinder 308,CPU 344,memory 346, and I/O 348 are each coupled to, and communicate, viacommon system bus 116 that also communicates withcapture subsystem 114. In alternate embodiments,control module 118 may include other components in addition to, or instead of, certain of those components discussed in conjunction with theFIG. 3 embodiment. - In the
FIG. 3 embodiment,CPU 344 may be implemented to include any appropriate microprocessor device. Alternately,CPU 344 may be implemented using any other appropriate technology. For example,CPU 344 may be implemented to include certain application-specific integrated circuits (ASICs) or other appropriate electronic devices.Memory 346 may be implemented as one or more appropriate storage devices, including, but not limited to, read-only memory, random-access memory, and various types of non-volatile memory, such as floppy disc devices, hard disc devices, or flash memory. I/O 348 may provide one or more effective interfaces for facilitating bi-directional communications betweencamera device 110 and any external entity, including a system user or another electronic device. I/O 348 may be implemented using any appropriate input and/or output devices. The operation and utilization ofcontrol module 118 are further discussed below in conjunction withFIGS. 4 through 9 . - Referring now to
FIG. 4 , a block diagram for one embodiment of theFIG. 3 memory 346 is shown, in accordance with the present invention. In theFIG. 4 embodiment,memory 346 may include, but is not limited to, acamera application 412, anoperating system 414, a depth of field (DOF)manager 416, adigital zoom module 418, depth of field (DOF)parameters 420, zoom values 422, andimage data 424. In alternate embodiments,memory 346 may readily include various other components in addition to, or instead of, those components discussed in conjunction with theFIG. 4 embodiment. - In the
FIG. 4 embodiment,camera application 412 may include program instructions that are executed by CPU 344 (FIG. 3 ) to perform various functions and operations forcamera device 110. The particular nature and functionality ofcamera application 412 varies depending upon factors such as the type and particular use of thecorresponding camera device 110. In theFIG. 4 embodiment,operating system 414 preferably controls and coordinates low-level functionality ofcamera device 110. - In accordance with the present invention,
DOF manager 416 may control and coordinate a zoom optimization procedure to select optimal zoom values 422 for capturingimage data 424. The zoom values 422 may include specific settings fordigital zoom 418 and optical zoom 236 (FIG. 2 ). In theFIG. 4 embodiment,DOF parameters 420 may include any appropriate values or information required byDOF manager 416 to optimize zoom values 422. The utilization ofDOF manager 416 to perform zoom optimization procedures is further discussed below in conjunction withFIGS. 5-9 . - Referring now to
FIG. 5 , a diagram illustrating depth of field (DOF) is shown, in accordance with one embodiment of the present invention. The FIG. 5 diagram is presented for purposes of illustration, and in alternate embodiments, depth of field may include characteristics or parameters in addition to, or instead of, certain of those characteristics or parameters shown in theFIG. 5 example. - In the
FIG. 5 embodiment, alens 514 is shown with various relevant distances and parameters defined. A camera is typically able to precisely focus on only one plane. A point object in any other plane is imaged as a disk rather than a point, and the farther a plane is from the plane of focus, the larger the disk. However, if the disk (known as a blur spot) is sufficiently small, it is indistinguishable from a point, so that a zone of acceptable sharpness exists between two planes on either side of the plane of focus. This zone is known as the depth of field (DOF). The closest plane is the near limit of the DOF, and the farthest plane is the far limit of the DOF. The diameter of a sufficiently small blur spot is known as the circle of confusion. - In the
FIG. 5 example, the DOF is shown between near limit 526 (defined by distance un) and far limit 522 (defined by distance uf). Controlling the size of the aperture controls the size of the blur spot, and the focus determines the position of the DOF. As the size of the aperture is decreased (or the f-number is increased), the size of the defocus blur spot decreases and the DOF increases. However, in low-light environments, the aperture may need to be increased and the shutter speed decreased to obtain enough light for adequately capturing images. For these reasons, DOF may be maximized by operatingcamera 110 with the zoom value foroptical zoom 236 being set (or zoomed out) as far as possible for capturing the desiredtarget object 112. - In the
FIG. 5 example, atarget object 112 at distance u fromlens 514 is in focus (for example, onimage sensor 224 ofFIG. 2 ) at focal distance v. Target objects at distances uf and un would be in focus at focal distances uf and un respectively. At focal distance v, they are imaged as blur spots. The depth of field is affected by the aperture stop diameter d. When the blur spot diameter is equal to the circle of confusion c, the near and far limits of the DOF are defined by distances uf and un betweenvertical axis 522 andvertical axis 526. - In the
FIG. 5 example, the DOF may be defined by the following formula: -
- where uf is the distance of the far object that is in focus, un is the distance of the near object that is in focus, f is the focal length, u is the object distance, v is the image distance, c is the circle of confusion, d is the aperture diameter, m is the image magnification (equal to u/v), and N is the f-number (equal to f/d).
- Referring now to
FIG. 6 , a diagram illustrating a digital zoom procedure is shown, in accordance with one embodiment of the present invention. In alternate embodiments, the present invention may utilize various other configurations and techniques to implement digital zoom procedures. - In the
FIG. 6 example, a full-sized image 614 is shown with an exemplary target object (a person) in the center of the frame. TheFIG. 6 example also shows a smaller zoomed-inimage 618 that is enclosed a smaller frame demarcated by a dotted line. In theFIG. 6 embodiment,camera 110 may utilize a digital zoom 418 (FIG. 4 ) to electronically perform a digital zoom procedure upon the image by utilizing any effective techniques. For example, in certain embodiments,digital zoom 418 may crop or remove the area of full-sized image 614 that falls outside of zoomed-inimage 618.Digital zoom 418 may then increase the apparent size of the zoomed-inimage 418 to match the original size of full-sized image 614 by utilizing any appropriate techniques. For example, in certain embodiments,digital zoom 418 may duplicate adjacent pixels from zoomed-inimage 618 until enough pixels are present to populate zoomed-inimage 618 as a full-sized image. - As discussed above in conjunction with
FIG. 5 , in order to optimize depth of field characteristics of a captured image, a DOF manager 416 (FIG. 4 ) may advantageously zoom out (lengthen the focal length) of lens unit 220 (FIG. 2 ) to an optimal optical zoom value. In accordance with the present invention,DOF manager 416 may then effectively utilizedigital zoom 416 to compensate for the foregoing optical zoom-out procedure by performing a digital zoom-in procedure withdigital zoom 418 to thereby produce a zoomed-inimage 618 that possesses the same apparent zoom characteristics as initially desired by a camera user. The derivation of optimal zoom settings is further discussed below in conjunction withFIGS. 7-9 . - Referring now to
FIG. 7 , a graph illustrating optimized zoom values is shown, in accordance with one embodiment of the present invention. TheFIG. 7 embodiment is presented for purposes of illustration, and in alternate embodiments, zoom values may be optimized with techniques and configurations in addition to, or instead of, certain of those techniques and configurations discussed in conjunction with theFIG. 7 embodiment. - In the
FIG. 7 graph, optical zoom values for optical zoom 236 (FIG. 2 ) are shown on a vertical axis, and digital zoom values for digital zoom 418 (FIG. 4 ) are shown on a horizontal axis. A group of six progressively smaller contours are shown in theFIG. 7 example as being approximately concentric. In other embodiments, any other number of contours or shapes may alternately be utilized. In theFIG. 7 embodiment, each of the contours represents a different level of image quality for an image captured at a given object distance. In theFIG. 7 embodiment, the outermost contour represents the worst image quality. The image quality increases gradually through the series of adjacent contours until an optimal image quality is reached in the center contour. - The
FIG. 7 graph depicts both an unconstrained solution and a constrained solution for identifying the optimal zoom settings foroptical zoom 236 anddigital zoom 418. The optimal zoom settings may be identified by applying any effective techniques or criteria. For example, optimal zoom settings may be selected to correspond to optimal image quality characteristics (such as optimal image detail or optimal depth of field) for captured images. In theFIG. 7 embodiment, an unconstrained solution identifies the optimal zoom settings as thedark region 718 in the center contour. For a constrained solution, acurve 714 illustrates all possible zoom setting pairs (optical and digital) that satisfy an apparent desired zoom setting from a camera user. The optimal zoom settings are identified at thelocation 722 wherecurve 714 touches the highest-level contour. Additional techniques for identifying and utilizing optimal zoom settings are further discussed below in conjunction withFIGS. 8-9 . - Referring now to
FIGS. 8A-8B , a flowchart of method steps for optimizing depth of field is shown, in accordance with a first embodiment of the present invention. TheFIG. 8 embodiment is presented for purposes of illustration, and in alternate embodiments, the present invention may readily utilize various other steps and sequences than those discussed in conjunction with theFIG. 8 embodiment. - In
step 814 ofFIG. 8A , a depth of field (DOF)manager 416 initially reads an optical zoom value for anoptical zoom 236 that controls alens unit 220 of acamera device 110. Instep 818, animage sensor 224 of thecamera device 110 captures and stores imagedata 424 corresponding to atarget object 112. Instep 822,DOF manager 416 reads a current target distance to thetarget object 112. Then, instep 826, theDOF manager 416 instructsoptical zoom 236 to decrement an optical zoom value by a zoom-out value of −ΔZ0. - In
step 830,DOF manager 416 calculates a zoom-in value +ΔZd for incrementing a digital zoom value to thereby compensate for the decrement in the optical zoom value from foregoingstep 826. Instep 834,DOF manager 416 applies the new digital zoom value todigital zoom 418, andimage sensor 224 captures a new image with the updated zoom values (optical zoom value and digital zoom value). TheFIG. 8A process then advances to step 838 ofFIG. 8B through connecting letter “A.” - In
step 838,DOF manager 416 determines whether the apparent zoom characteristics of the immediately-preceding zoom values and the current updated zoom values (from step 834) are the same. If the apparent zoom characteristics are not the same, then theFIG. 8B process returns to step 830 ofFIG. 8A through connecting letter “B.” However, if the apparent zoom characteristics are the same instep 838, then instep 842,DOF manager 416 calculates the quality characteristics of the new image fromstep 834 by utilizing any appropriate techniques and criteria. - In
step 846,DOF manager 416 determines whether the quality metric for the new image is maximized by utilizing any effect methods. For example, in certain embodiments, the contour graph method ofFIG. 7 may be utilized. If the quality metric for the new image is not maximized, then theFIG. 8B process returns to step 826 ofFIG. 8A through connecting letter “C.” However, if the quality metric for the new image is maximized instep 846, then in step 850,DOF manager 416 may apply the final optical zoom value and the final digital zoom value for utilization bycamera device 110. - Referring now to
FIG. 9 , a flowchart of method steps for optimizing depth of field is shown, in accordance with a second embodiment of the present invention. TheFIG. 9 embodiment is presented for purposes of illustration, and in alternate embodiments, the present invention may readily utilize various other steps and sequences than those discussed in conjunction with theFIG. 9 embodiment. - In the
FIG. 9 embodiment, instep 910, a depth of field (DOF)manager 416 initially reads an optical zoom value for anoptical zoom 236 that controls alens unit 220 of acamera device 110. Instep 914,DOF manager 416 reads a current target distance to thetarget object 112. Then, instep 918, theDOF manager 416 accesses optimal zoom values (an optical-zoom value and a corresponding optimal digital-zoom value) from a zoom-value lookup table (LUT) that was created previously according to specified criteria. In theFIG. 9 embodiment, the optimal zoom values may be based upon relevant camera parameters including, but not limited to, the initial optical zoom value set by the camera user and the current target distance to a desiredtarget object 112. Instep 922,DOF manager 416 applies the optimal zoom values from the LUT tooptical zoom 236 anddigital zoom 418, respectively. Finally, instep 926, animage sensor 224 captures a new image with the optimized zoom values (optical zoom value and digital zoom value). TheFIG. 9 process may then terminate. The present invention therefore provides an improved system and method for effectively optimizing zoom settings in a digital camera. - The invention has been explained above with reference to certain embodiments. Other embodiments will be apparent to those skilled in the art in light of this disclosure. For example, the present invention may readily be implemented using configurations and techniques other than those described in the embodiments above. Additionally, the present invention may effectively be used in conjunction with systems other than those described above. Therefore, these and other variations upon the discussed embodiments are intended to be covered by the present invention, which is limited only by the appended claims.
Claims (20)
1. A system for optimizing zoom settings in a camera device, comprising:
an optical zoom that controls a lens unit of said camera device to perform an optical zoom function;
a digital zoom that performs a digital zoom function; and
a DOF manager that performs a zoom-setting optimization procedure to select optimal zoom values for said camera device.
2. The system of claim 1 wherein said optical zoom function is a zoom-out function that physically adjusts said lens unit of said camera device.
3. The system of claim 2 wherein said digital zoom function is a zoom-in function that is controlled by a software process on said camera device.
4. The system of claim 3 wherein said zoom-in function digitally crops said images to produce cropped images, said zoom-in function then digitally expanding said cropped images to produce a final image.
5. The system of claim 3 wherein said zoom-out function optimizes said image quality characteristics, said zoom-in function being performed to compensate for said zoom-out function to produce same apparent zoom characteristics as originally selected by a camera user.
6. The system of claim 1 wherein said image quality characteristics include depth of field characteristics for said images.
7. The system of claim 1 wherein said camera device includes a capture subsection with said optical zoom, said lens unit, and an image sensor that captures said images.
8. The system of claim 1 wherein said camera device includes a control module with a processor device that controls said DOF manager and said digital zoom.
9. The system of claim 1 wherein said DOF manager selects said optimal zoom values by calculating and evaluating image quality contours corresponding to said images, said optimal zoom values including an optimal optical-zoom value and an optimal digital-zoom value.
10. The system of claim 9 wherein said DOF manager utilizes an unconstrained solution for identifying said optimal zoom values in said image quality contours.
11. The system of claim 9 wherein said DOF manager utilizes a constrained solution for identifying said optimal zoom values in said image quality contours.
12. The system of claim 1 wherein said zoom-setting optimization procedure utilizes off-line techniques to select said optimal zoom values.
13. The system of claim 12 wherein said DOF manager reads an initial optical zoom value set by a camera user, said DOF manager also reading a target distance for a target object with respect to said camera device.
14. The system of claim 13 wherein said DOF manager references a zoom-value lookup table to determine said optimal zoom values, said zoom-value lookup table being previously implemented based upon defined zoom-setting selection criteria.
15. The system of claim 14 wherein said camera device utilizes said optimal zoom values to capture said images with optimized image quality characteristics.
16. The system of claim 1 wherein said zoom-setting optimization procedure utilizes on-line techniques to select said optimal zoom values.
17. The system of claim 16 wherein said DOF manager reads an initial optical zoom value set by a camera user, said DOF manager also reading a target distance for a target object with respect to said camera device, said camera device capturing and storing an initial image.
18. The system of claim 17 wherein said DOF manager performs an iterative procedures to produce updated zoom values, said iterative procedures decrementing an optical zoom value for said optical zoom, incrementing a digital zoom value for said digital zoom to compensate for decrementing said optical zoom value, said camera device utilizing said updated zoom values to capture evaluation images.
19. The system of claim 18 wherein said DOF manager repeats said iterative procedures until said image quality characteristics are optimized, said camera device then capturing final optimized images.
20. A method for optimizing zoom settings in a camera device, comprising:
controlling a lens unit of said camera device with an optical zoom to perform an optical zoom function;
performing a digital zoom function by utilizing a digital zoom; and
performing a zoom-setting optimization procedure with a DOF manager to select optimal zoom values for said optical zoom and said digital zoom, said zoom-setting optimization procedure thereby optimizing image quality characteristics of images captured by said camera device.
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US13/199,645 US20120057052A1 (en) | 2008-04-24 | 2011-09-06 | System and method for effectively optimizing zoom settings in a digital camera |
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US12/148,994 US8040399B2 (en) | 2008-04-24 | 2008-04-24 | System and method for effectively optimizing zoom settings in a digital camera |
US13/199,645 US20120057052A1 (en) | 2008-04-24 | 2011-09-06 | System and method for effectively optimizing zoom settings in a digital camera |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103279259A (en) * | 2012-03-12 | 2013-09-04 | 微软公司 | Providing theme variations in a user interface |
WO2021212498A1 (en) * | 2020-04-24 | 2021-10-28 | 深圳市大疆创新科技有限公司 | Image processing method, system on chip, and electronic device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8624989B2 (en) * | 2008-07-01 | 2014-01-07 | Sony Corporation | System and method for remotely performing image processing operations with a network server device |
JP5207955B2 (en) * | 2008-12-24 | 2013-06-12 | 三洋電機株式会社 | Electronic camera |
JP5872874B2 (en) * | 2011-12-12 | 2016-03-01 | オリンパス株式会社 | Imaging device and method for controlling imaging device |
JP6006024B2 (en) * | 2012-07-02 | 2016-10-12 | オリンパス株式会社 | Imaging apparatus, imaging method, and program |
JP6099892B2 (en) * | 2012-07-09 | 2017-03-22 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America | Video display device |
JP2014154907A (en) * | 2013-02-05 | 2014-08-25 | Canon Inc | Stereoscopic imaging apparatus |
CN104159038B (en) * | 2014-08-26 | 2018-05-08 | 北京智谷技术服务有限公司 | The image formation control method and device and imaging device of shallow Deep Canvas image |
CN106454105A (en) * | 2016-10-28 | 2017-02-22 | 努比亚技术有限公司 | Device and method for image processing |
US10469759B2 (en) * | 2017-11-07 | 2019-11-05 | Axis Ab | Combining optical and digital zoom under varying image capturing conditions |
CN112285925A (en) * | 2020-11-11 | 2021-01-29 | 南开大学 | Variable-focus three-dimensional imaging system |
CN112887606B (en) * | 2021-01-26 | 2023-04-07 | 维沃移动通信有限公司 | Shooting method and device and electronic equipment |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5684532A (en) * | 1995-10-06 | 1997-11-04 | Sensormatic Electronics Corporation | Video camera with improved zoom capability |
US20010040630A1 (en) * | 1996-07-22 | 2001-11-15 | Kazuhiro Matsuzaka | Image pickup apparatus with electronic and optical zoom functions |
US20030117719A1 (en) * | 2001-09-17 | 2003-06-26 | Hiroshi Wakai | Optical system and imaging device |
US6822676B1 (en) * | 1998-01-19 | 2004-11-23 | Canon Kabushiki Kaisha | Camera control system with electronic zoom processing |
US20060125919A1 (en) * | 2004-09-30 | 2006-06-15 | Joseph Camilleri | Vision system for vehicle |
US20060285006A1 (en) * | 2005-06-15 | 2006-12-21 | Samsung Electronics Co.; Ltd | Camera lens assembly for portable terminals |
US20070291163A1 (en) * | 2000-06-05 | 2007-12-20 | Akihisa Yamazaki | Camera, aperture controlling method and apparatus, lens controlling method and apparatus, and edging amount controlling method and apparatus |
US20080018754A1 (en) * | 2001-04-05 | 2008-01-24 | Nikon Corporation | Method for image data print control, electronic camera and camera system |
US20080055429A1 (en) * | 2006-09-04 | 2008-03-06 | Casio Computer Co., Ltd. | Imaging apparatus and method for displaying zoom information |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1461664A4 (en) * | 2001-12-07 | 2008-10-01 | Smartlens Corp | Selective focus system for use in photography |
US7053953B2 (en) * | 2001-12-21 | 2006-05-30 | Eastman Kodak Company | Method and camera system for blurring portions of a verification image to show out of focus areas in a captured archival image |
US7116364B2 (en) * | 2002-10-29 | 2006-10-03 | Hewlett-Packard Development Company, L.P. | Method and apparatus for maintaining a consistent effective focal length in a digital camera |
GB2407635B (en) * | 2003-10-31 | 2006-07-12 | Hewlett Packard Development Co | Improvements in and relating to camera control |
JP2006235060A (en) * | 2005-02-23 | 2006-09-07 | Canon Inc | Imaging apparatus |
US20060269150A1 (en) * | 2005-05-25 | 2006-11-30 | Omnivision Technologies, Inc. | Multi-matrix depth of field image sensor |
US7412158B2 (en) * | 2005-08-08 | 2008-08-12 | Nokia Corporation | Deeper depth of field for video |
JP2008076981A (en) * | 2006-09-25 | 2008-04-03 | Nikon Corp | Electronic camera |
-
2008
- 2008-04-24 US US12/148,994 patent/US8040399B2/en not_active Expired - Fee Related
-
2009
- 2009-03-27 EP EP09250879A patent/EP2112822A3/en not_active Withdrawn
- 2009-04-24 CN CN2013102170835A patent/CN103347146A/en active Pending
- 2009-04-24 JP JP2009123563A patent/JP5492454B2/en not_active Expired - Fee Related
- 2009-04-24 CN CN2009101373836A patent/CN101600050B/en not_active Expired - Fee Related
-
2011
- 2011-09-06 US US13/199,645 patent/US20120057052A1/en not_active Abandoned
-
2014
- 2014-03-03 JP JP2014040780A patent/JP2014140204A/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5684532A (en) * | 1995-10-06 | 1997-11-04 | Sensormatic Electronics Corporation | Video camera with improved zoom capability |
US20010040630A1 (en) * | 1996-07-22 | 2001-11-15 | Kazuhiro Matsuzaka | Image pickup apparatus with electronic and optical zoom functions |
US6822676B1 (en) * | 1998-01-19 | 2004-11-23 | Canon Kabushiki Kaisha | Camera control system with electronic zoom processing |
US20070291163A1 (en) * | 2000-06-05 | 2007-12-20 | Akihisa Yamazaki | Camera, aperture controlling method and apparatus, lens controlling method and apparatus, and edging amount controlling method and apparatus |
US20080018754A1 (en) * | 2001-04-05 | 2008-01-24 | Nikon Corporation | Method for image data print control, electronic camera and camera system |
US20030117719A1 (en) * | 2001-09-17 | 2003-06-26 | Hiroshi Wakai | Optical system and imaging device |
US20060125919A1 (en) * | 2004-09-30 | 2006-06-15 | Joseph Camilleri | Vision system for vehicle |
US20060285006A1 (en) * | 2005-06-15 | 2006-12-21 | Samsung Electronics Co.; Ltd | Camera lens assembly for portable terminals |
US20080055429A1 (en) * | 2006-09-04 | 2008-03-06 | Casio Computer Co., Ltd. | Imaging apparatus and method for displaying zoom information |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103279259A (en) * | 2012-03-12 | 2013-09-04 | 微软公司 | Providing theme variations in a user interface |
US9250767B2 (en) | 2012-03-12 | 2016-02-02 | Microsoft Technology Licensing, Llc | Providing theme variations in a user interface |
US9354779B2 (en) | 2012-03-12 | 2016-05-31 | Microsoft Technology Licensing, Llc | Providing theme variations in a user interface |
WO2021212498A1 (en) * | 2020-04-24 | 2021-10-28 | 深圳市大疆创新科技有限公司 | Image processing method, system on chip, and electronic device |
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Publication number | Publication date |
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EP2112822A2 (en) | 2009-10-28 |
JP2009268116A (en) | 2009-11-12 |
JP5492454B2 (en) | 2014-05-14 |
CN103347146A (en) | 2013-10-09 |
US20090268060A1 (en) | 2009-10-29 |
EP2112822A3 (en) | 2013-04-03 |
CN101600050B (en) | 2013-06-26 |
CN101600050A (en) | 2009-12-09 |
US8040399B2 (en) | 2011-10-18 |
JP2014140204A (en) | 2014-07-31 |
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