Framing of Images in an Image Capture Device

- BROADCOM CORPORATION

Disclosed are various embodiments of framing and/or reframing an image captured by an image capture device. Framing characteristics associated with an image are identified. A determination is made regarding whether the framing characteristics comply with one or more framing guidelines. The image can be reframed if the framing characteristics do not comply with framing guidelines.

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Description
CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to co-pending U.S. provisional application entitled, “Image Capture Device Systems and Methods,” having Ser. No. 61/509,747, filed Jul. 20, 2011, which is entirely incorporated herein by reference.

BACKGROUND

Users of image capture devices (e.g., still cameras, video cameras, etc.) may sometimes improperly frame an image that is captured by the device. In other words, a user may capture an image of a subject without framing the subject ideally. In some cases, the subject of an image may not be centered in the frame, the subject may occupy too little or too much of the frame relative to any background and/or foreground image elements, have insufficient or excessive lighting, or possess other imperfections or inadequacies related to the user's framing of the image.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the invention can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present invention. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.

FIGS. 1A and 1B are drawings of a mobile device incorporating an image capture device according to various embodiments of the disclosure.

FIG. 2 is a drawing of an image capture device that can be incorporated into a mobile device shown in FIG. 1 according to various embodiments of the disclosure.

FIGS. 3-8 are drawings of example user interfaces that can be generated in a mobile device in association with the image capture device shown in FIG. 2 according to various embodiments of the disclosure.

FIG. 9 is a flowchart depicting one example execution of a user interface application executed in an image capture device according to various embodiments of the disclosure.

DETAILED DESCRIPTION

Embodiments of the present disclosure relate to systems and methods that can be executed in an image capture device. More specifically, embodiments of the disclosure relate to systems and methods for framing and/or reframing of images captured by an image capture device to improve the framing characteristics and/or appearance. In the context of this disclosure, an image capture device can include a camera, video camera, a mobile device with an integrated image capture device, or other devices suitable to capturing imagery and/or video as can be appreciated. In some embodiments, an image capture device according to an embodiment of the disclosure can include a device such as a smartphone, tablet computing system, laptop computer, desktop computer, or any other computing device that has the capability to receive and/or capture imagery via image capture hardware.

Accordingly, image capture device hardware can include components such as lenses, image sensors (e.g., charge coupled devices, CMOS image sensor, etc.), processor(s), image signal processor(s), a main processor, memory, mass storage, or any other hardware or software components that can facilitate capture of imagery and/or video. In some embodiments, an image signal processor can be incorporated as a part of a main processor in an image capture device module that is in turn incorporated into a device having its own processor, memory and other components.

An image capture device according to an embodiment of the disclosure can provide a user interface via a display that is integrated into the image capture device. The display can be integrated with a mobile device, such as a smartphone and/or tablet computing device, and can include a touchscreen input device (e.g., a capacitive touchscreen, etc.) with which a user may interact with the user interface that is presented thereon. The image capture device hardware can also include one or more buttons, dials, toggles, switches, or other input devices with which the user can interact with software executed in the image capture device.

Referring now to the drawings, FIGS. 1A-1B show a mobile device 102 that can comprise and/or incorporate an image capture device according to various embodiments of the disclosure. The mobile device 102 may comprise, for example, a processor-based system, such as a computer system. Such a computer system may be embodied in the form of a desktop computer, a laptop computer, a personal digital assistant, a mobile device (e.g., cellular telephone, smart phone, etc.), tablet computing system, set-top box, music players, or other devices with like capability. The mobile device can include, for example, an image capture device 104, which can further include a lens system as well as other hardware components that can be integrated with the device to facilitate image capture. The mobile device 102 can also include a display device 141 upon which various content and other user interfaces may be rendered. The mobile device 102 can also include one or more input devices with which a user can interact with a user interface rendered on the display device 141. For example, the mobile device 102 can include or be in communication with a mouse, touch input device (e.g., capacitive and/or resistive touchscreen incorporated with the display device 141), keyboard, or other input devices.

The mobile device 102 may be configured to execute various applications, such as a camera application that can interact with an image capture module that includes various hardware and/or software components that facilitate capture and/or storage of images and/or video. In one embodiment, the camera application can interact with application programming interfaces (API's) and/or other software libraries and/or drivers that are provided for the purpose interacting with image capture hardware, such as the lens system and other image capture hardware. The camera application can be a special purpose application, a plug-in or executable library, one or more API's, image control algorithms, image capture device firmware, or other software that can facilitate communication with image capture hardware in communication with the mobile device 102.

FIG. 2 illustrates an embodiment of the various image capture components, or one example of an image capture device 104, that can be incorporated in the mobile device 102 illustrated in FIGS. 1A-1B. Although one implementation is shown in FIG. 2 and described herein, an image capture device according to an embodiment of the disclosure more generally comprises an image capture device that can provide images in digital form.

The image capture device 104 includes a lens system 200 that conveys images of viewed scenes to an image sensor 202. By way of example, the image sensor 202 comprises a charge-coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) sensor that is driven by one or more sensor drivers 204. The analog image signals captured by the sensor 202 are provided to an analog-to-digital (ND) converter 206 for conversion into binary code that can be processed by a processor 208. The processor can also execute an image framing application 151 that can facilitate framing of images captured by a user as well as generating recommendations to the user regarding adjustments to image framing that can be made to produce higher quality images with the image capture device 104. In some embodiments, the image framing application 151 can take the form of API's, firmware, or other software accessible to the image capture device 104 and/or a mobile device 102 or other system in which the image capture device 104 is integrated.

Operation of the sensor driver(s) 204 is controlled through a camera controller 210 that is in bi-directional communication with the processor 208. In some embodiments, the controller 210 can control one or more motors 212 that are used to drive the lens system 200 (e.g., to adjust focus, zoom, and/or aperture settings). The controller 210 can also communicate with a flash system, user input devices (e.g., buttons, dials, toggles, etc.) or other components associated with the image capture device 104. Operation of the camera controller 210 may be adjusted through manipulation of a user interface. A user interface comprises the various components used to enter selections and commands into the image capture device 104 and therefore can include various buttons as well as a menu system that, for example, is displayed to the user in, for example, a camera application executed on a mobile device 102 and/or on a back panel associated with a standalone digital camera.

The digital image signals are processed in accordance with instructions from an image signal processor 218 that can be implemented as a standalone processor within the image capture device as well as being a part of the processor 208. Processed (e.g., compressed) images may then be stored in storage memory, such as that contained within a removable solid-state memory card (e.g., Flash memory card). The embodiment shown in FIG. 2 further includes a device interface 224 through which the image capture device 104 can communicate with a mobile device or other computing system in which it may be integrated. For example, the device interface 224 can allow the image capture device to communicate with a main processor associated with a mobile device as well as memory, mass storage, or other resources associated with the mobile device. The device interface 224 can communicate with a mobile device in various communications protocols, and this communication can be facilitated, at a software level, by various device drivers, libraries, API's or other software associated with the image capture device 104 that is executed in the mobile device.

An image capture device (e.g., camera, mobile device with integrated camera, etc.) and/or processing system can be configured with automatic framing and/or reframing capabilities that are based at least upon an identification and characterization of various image elements. An image capture device 104 as described herein can identify various framing characteristics associated with an image captured by the device and automatically reframe the image and/or suggest adjustments to framing conditions that a user may take to comply with framing guidelines that can be accessible to the image capture device 104. For example, framing guidelines can specify various ranges of parameters regarding various types of image subjects (e.g., people, foreground elements, background elements, other objects, etc.). Additionally, the framing guidelines can also specify ranges of parameters that are related to various other image properties, such as, but not limited to, lighting sources, such as a device flash and/or natural or artificial light sources within the image, brightness, sharpness, tone, color intensity, contrast, gamma, etc., or other aspects of an image. As described herein, the image framing application 151 can determine whether the framing characteristics of an image captured by the image capture device comply with ranges of various parameters that are specified by at least one framing guideline that is accessible to the image framing application 151.

The analysis of imagery as well as determinations regarding whether framing characteristics of an image comply with framing guidelines can be accomplished via software executed by the processor 208, the ISP 218 as well as a processor associated with a device in communication with the image capture device 104. It should be appreciated that the specific implementation and/or embodiments disclosed herein are merely examples.

Accordingly, reference is now made to FIG. 3, which illustrates an example image that can be captured by the image capture device 104 (FIG. 2) according to various embodiments according to the disclosure. In the depicted non-limiting examples of FIGS. 3-4, the image capture device 104 is incorporated into a mobile device 102, which can execute a camera application that renders a user interface for display on a display device associated with the mobile device 102. It should be appreciated that this is only one non-limiting illustrative implementation. Therefore, FIG. 3 illustrates an example of an image 303 that can be captured by the image capture device. As one example, the image 303 can be captured via a camera application executed on a mobile device where the camera application is configured to communicate with API's associated with the image capture device for the purposes of initiating capture of imagery, display of imagery on a display of the mobile device as well as storage of captured imagery in the form of still images and/or video in memory or mass storage associated with the mobile device. The example image 303 includes various elements, such as a subject 305, foreground elements, background elements, and other elements or objects in an image as can be appreciated.

According to one embodiment of the disclosure, the image framing application 151 executed by the image capture device 104 can analyze the image 303 to identify various framing characteristics of the image. To perform such an analysis, the image framing application 151 can identify the various elements in an image. In other words, the image framing application 151 can identify objects that are depicted in an image 303 captured by the image capture device 104. The image framing application 151 can also identify a subject of the image. For example, a subject of the image can be one or more people or any other object that is the focus of an image. The image framing application 151 can characterize the objects and/or elements within an image 303, which can be used to determine the framing characteristics of the image.

The various regions, objects, elements, etc., within an image 303 can be characterized based upon their content. Example, people depicted in an image 303 can be identified as such, background elements (e.g., sky, sun, etc.), foreground elements, and other elements can be characterized. Subsequently, the image framing application 151 can identify the framing characteristics of the image 303. In other words, the image framing application 151 can calculate a measure of how well-framed the captured image is as well as whether the framing of the image can be improved upon. The framing characteristics can then be compared with various framing guidelines, which can specify ranges of various parameters that represent best practices, or a well-framed image. Accordingly, in some embodiments, the image framing application 151 can automatically reframe the image 303 based upon the captured image data, which can result in a more aesthetically pleasing image.

Framing characteristics associated with the image 303 can include, as one example, a percentage of the image in which a subject appears. As another example, a framing characteristic can comprise a percentage of the subject that appears in the image. Framing characteristics can also include coordinates that describe a horizontal and/or vertical position of the subject within the image 303. As additional examples, framing characteristics can include: a position of lighting sources, such as a device flash and/or natural or artificial light sources relative to the subject, clarity of the subject, brightness, tone, color intensity, contrast, gamma, or other characteristics associated with the subject in the image 303.

In the depicted example, the image framing application 151 can identify the subject 305 of the image and identify its various framing characteristics. By way of illustration, the image framing application 151 can determine a fraction and/or percentage of the image that the subject 305 occupies as well as the percentage of the subject 305 appearing in the image. The image framing application 151 can estimate such a percentage by identifying the subject 305 as a human body and estimating a percentage of the image that does not appear in the image 303. The percentage of the image that the subject 305 occupies as well as coordinates describing the position of the subject 305 within the image can also be identified. The image framing application 151 can also determine a percentage of the image that the background (e.g., sky, landscape, etc.), foreground, and/or other image elements consume.

Accordingly, upon identifying the various framing characteristics of the image 303, the image framing application 151 can compare one or more of the framing characteristics against one or more framing guidelines. Framing guidelines can represent ideal or best practices as it relates to the framing and/or composition of an image. For example, a framing guideline can specify one or more percentage range that a subject of an image should consume. As another example, a framing guideline can specify one or more percentage range of a subject that should appear in an image. The framing guidelines can also specify these parameters as they relate to the other image elements that can be identified in the image 305. As a non-limiting example, the image framing application 151 can specify that a subject of an image, if it is a person or human body, should ideally comprise 15-25% or 65-75% of an image.

Continuing this illustrative example, the framing guidelines also specify that a human subject, if represented in the image 305, should appear such that the head of the subject is located within a certain range of the vertical and/or horizontal center position of the image. As yet another illustrative example, the framing guidelines can also specify that if a human body is the subject of an image that the body should not be cut off at the knees and/or legs. In other words, the framing guidelines can specify that a certain percentage range of the subject should be represented in the image 305.

As another example, the image framing application 151 can detect the lighting conditions of the image 303. For example, the intensity and/or position of light sources within the image 303 can be detected. As another example, the distance of the subject 305 from the image capture device 104, which can be derived from data regarding focusing from the lens system of the image capture device, can also be determined. Additionally, the image framing application 151 can determine an optimum distance from the image capture device 104 based at least upon the characteristics of a flash device incorporated into the image capture device 104.

To determine whether framing of an image captured by the image capture device 104 can be improved, the image framing application 151 can calculate a framing score that expresses the extent to which the framing characteristics of an image comply with the various framing guidelines. In one embodiment, such a framing score can be based at least upon how closely the identified framing characteristics comply with framing guidelines. Continuing the above example of a hypothetical framing guideline that specifies various percentage ranges of an image that a subject should consume, the framing score can include a measure of how closely the identified framing characteristics of an image comply with one or more of the percentage ranges.

Reference is now made to FIG. 5, which illustrates an example of how the image framing application 151 can reframe an image captured by the image capture device 104 according to various embodiments of the disclosure. In the depicted example, the image framing application 151 can identify the framing characteristics of the image 303 and determine the extent to which they comply with framing guidelines with which the image framing application 151 can be configured. As one non-limiting example, the image framing application 151 can identify that the subject 305 in the depicted image 303 can be adjusted to comply with framing guidelines. In other words, the image framing application 151 can identify image adjustments that can raise a framing score associated with the image 303. Accordingly, the image framing application 151 can identify a region 407 of the image that can be extracted and/or cropped to result in an image that more closely complies with one or more framing guidelines. In this example, the region 407 can be identified by the image framing application 151 that can cause the image to more closely comply with one or more framing guidelines. FIG. 4 illustrates an example of a subject 305 whose horizontal and/or vertical coordinates may lie outside a range specified by framing guidelines. As another example, the percentage of the image 303 that the subject 305 consumes may lie outside a framing guideline, as could a percentage of the subject 305 that appears in the image 303.

In the depicted example, the image framing application 151 can crop the image 303 of FIG. 4 so that the position and/or size of the subject 505 is reframed and so that the resultant image more closely complies with one or more framing guidelines with which the image framing application 151 can be configured. For example, the subject of FIG. 5 in the resultant image 503 is centered and the percentage of the subject 505 shown in the image 503 has been adjusted, which can cause the image 503 to comply with framing guidelines.

FIG. 6 shows an alternative image 603 that can be reframed by the image framing application 151 according to various embodiments of the disclosure. In the depicted example, the image framing application 151 can identify the subject 605 of the image and determine whether the framing characteristics of the image 603 comply with various framing guidelines. In the depicted example, the image framing application 151 can determine that the vertical coordinates associated with the subject 605 as well as a percentage of the image 603 that the subject 605 consumes can be altered to comply with framing guidelines. Accordingly, the image framing application 151 can identify a region 607 of the image 603 that can be cropped to achieve such a result. FIG. 7 continues the example of FIG. 6 and illustrates a resultant image 703 that is cropped from the image 603 captured by the image capture device 104 and shown in FIG. 6.

Reference is now made to FIG. 8, which illustrates an example of how the image framing application 151 can identify recommendations regarding improvements to framing of an image 803. In the depicted example, the image framing application 151 can identify that an intense light source is in a background of the image 803 and generate a suggestion regarding how the image 803 can be reframed by the user to yield a resultant image that better complies with framing guidelines. In the example of FIG. 8, the image framing application 151 can generate a suggestion that the user reposition the subject and/or the image capture device 105.

In some embodiments, the image framing application 151 can identify a distance of the subject 805 from the image capture device 104 and generate a recommendation that the user position the image capture device 104 and/or the subject 805 closer or further from one another depending on an optimum range associated with a flash device associated with the image capture device 105. The image capture device can also analyze color intensity, image quality, or other parameters associated with the subject 805 and generate similar recommendations that are related to framing of the image that can result in a higher quality result.

Referring next to FIG. 9, shown is a flowchart that provides one example of the operation of a portion of an image framing application 151 executed by an image capture device 104, a mobile device 102 or any other device in which an image capture device 104 is integrated according to various embodiments of the disclosure. It is understood that the flowchart of FIG. 6 provides merely an example of the many different types of functional arrangements that may be employed to implement the operation of the portion of logic employed by the image capture device as described herein. As an alternative, the flowchart of FIG. 6 may be viewed as depicting an example of steps of a method implemented in a computing device, processor, or other circuits according to one or more embodiments.

First, in box 901, the image framing application 151 can initiate capture of one or more images and/or video by the image capture device 104. In one embodiment, image capture can be initiated by the user and/or any software application executed by the image capture device 104 or any device in which the image capture device 104 is integrated. In box 903, the image framing application 151 can identify framing characteristics of the image. In box 905, the image framing application 151 can generate a framing score associated with the identified framing characteristics. In other words, the image framing application 151 can determine whether the framing characteristics comply with framing guidelines or whether the image characteristics can be adjusted to more closely comply with framing guidelines. In other words, the image framing application 151 can reframe an image when the framing characteristics do not comply with framing guidelines.

In box 907, the image framing application 151 can determine whether improvement of the framing score is possible. In other words, the image framing application 151 can determine whether the image can be reframed (e.g., a region of the image identified and/or cropped from the image) and/or adjust other image characteristics or parameters associated with the image to improve the framing score. If so, in box 909, the image framing application 151 can reframe the image such that the framing characteristics more closely comply with one or more framing guidelines.

It should be appreciated that in some embodiments, images may be adjusted and/or reframed without initiating image capture as described in box 901, and that the example illustrated in the flowchart of FIG. 9 is but one non-limiting example. For example, a mobile device 102 and/or image capture device 104 can generate a user interface element providing adjustability of multiple image settings in conjunction a gallery application that allows for viewing and/or browsing of imagery and/or video stored in a mass storage device. Other variations should be appreciated by a person of ordinary skill in the art.

Embodiments of the present disclosure can be implemented in various devices, for example, having a processor, memory as well as image capture hardware that can be coupled to a local interface. The logic described herein can be executable by one or more processors integrated with a device. In one embodiment, an application executed in a computing device, such as a mobile device, can invoke one or more API's that provide the logic described herein as well as facilitate interaction with image capture hardware. Where any component discussed herein is implemented in the form of software, any one of a number of programming languages may be employed such as, for example, processor specific assembler languages, C, C++, C#, Objective C, Java, Javascript, Perl, PHP, Visual Basic, Python, Ruby, Delphi, Flash, or other programming languages.

As such, these software components can be executable by one or more processors in various devices. In this respect, the term “executable” means a program file that is in a form that can ultimately be run by a processor. Examples of executable programs may be, for example, a compiled program that can be translated into machine code in a format that can be loaded into a random access portion of memory and run by a processor, source code that may be expressed in proper format such as object code that is capable of being loaded into a random access portion of the memory and executed by the processor, or source code that may be interpreted by another executable program to generate instructions in a random access portion of the memory to be executed by the processor, etc. An executable program may be stored in any portion or component of the memory including, for example, random access memory (RAM), read-only memory (ROM), hard drive, solid-state drive, USB flash drive, memory card, optical disc such as compact disc (CD) or digital versatile disc (DVD), floppy disk, magnetic tape, or other memory components.

Although various logic described herein may be embodied in software or code executed by general purpose hardware as discussed above, as an alternative the same may also be embodied in dedicated hardware or a combination of software/general purpose hardware and dedicated hardware. If embodied in dedicated hardware, each can be implemented as a circuit or state machine that employs any one of or a combination of a number of technologies. These technologies may include, but are not limited to, discrete logic circuits having logic gates for implementing various logic functions upon an application of one or more data signals, application specific integrated circuits having appropriate logic gates, or other components, etc. Such technologies are generally well known by those skilled in the art and, consequently, are not described in detail herein.

The flowchart of FIG. 9 shows the functionality and operation of an implementation of portions of an image capture device according to embodiments of the disclosure. If embodied in software, each block may represent a module, segment, or portion of code that comprises program instructions to implement the specified logical function(s). The program instructions may be embodied in the form of source code that comprises human-readable statements written in a programming language or machine code that comprises numerical instructions recognizable by a suitable execution system such as a processor in a computer system or other system. The machine code may be converted from the source code, etc. If embodied in hardware, each block may represent a circuit or a number of interconnected circuits to implement the specified logical function(s).

Although the flowchart of FIG. 9 shows a specific order of execution, it is understood that the order of execution may differ from that which is depicted. For example, the order of execution of two or more blocks may be scrambled relative to the order shown. Also, two or more blocks shown in succession in FIG. 9 may be executed concurrently or with partial concurrence. Further, in some embodiments, one or more of the blocks shown in FIG. 9 may be skipped or omitted. In addition, any number of counters, state variables, warning semaphores, or messages might be added to the logical flow described herein, for purposes of enhanced utility, accounting, performance measurement, or providing troubleshooting aids, etc. It is understood that all such variations are within the scope of the present disclosure.

Also, any logic or application described herein that comprises software or code can be embodied in any non-transitory computer-readable medium for use by or in connection with an instruction execution system such as, for example, a processor in a computer device or other system. In this sense, the logic may comprise, for example, statements including instructions and declarations that can be fetched from the computer-readable medium and executed by the instruction execution system. In the context of the present disclosure, a “computer-readable medium” can be any medium that can contain, store, or maintain the logic or application described herein for use by or in connection with the instruction execution system. The computer-readable medium can comprise any one of many physical media such as, for example, magnetic, optical, or semiconductor media. More specific examples of a suitable computer-readable medium would include, but are not limited to, magnetic tapes, magnetic floppy diskettes, magnetic hard drives, memory cards, solid-state drives, USB flash drives, or optical discs. Also, the computer-readable medium may be a random access memory (RAM) including, for example, static random access memory (SRAM) and dynamic random access memory (DRAM), or magnetic random access memory (MRAM). In addition, the computer-readable medium may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or other type of memory device.

It should be emphasized that the above-described embodiments of the present disclosure are merely possible examples of implementations set forth for a clear understanding of the principles of the disclosure. Many variations and modifications may be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the disclosure. All such modifications and variations are intended to be included herein within the scope of this disclosure and protected by the following claims.

Claims

1. An image capture device, comprising:

at least one image sensor; and
an image framing application executed in the image capture device, comprising: logic that initiates capture of an image via an image sensor associated with the image capture device; logic that identifies at least one framing characteristic associated with the image; logic that determines whether the at least one framing characteristic complies with at least one framing guideline stored in a memory accessible to the image capture device; and logic that reframes the image based at least upon the at least one framing characteristic and the at least one of framing guideline.

2. The image capture device of claim 1, wherein the logic that determines whether the at least one framing characteristic complies with at least one framing guideline further comprises:

logic that calculates a framing score associated with the image, the framing score representing a framing quality of the image, the framing score based at least upon a deviation of the at least one framing characteristic from the at least one framing guideline.

3. The image capture device of claim 1, wherein the logic that identifies at least one framing characteristic associated with the image further comprises:

logic identifies a subject in the image; and
logic that calculates a percentage of the image in which the subject appears.

4. The image capture device of claim 3, wherein the subject is an object corresponding to at least one person and logic that identifies at least one frame characteristic associated with the image further comprises:

logic that identifies a face associated with the at least one person; and
logic that determines at least one coordinate corresponding to a position of the face in the image.

5. The image capture device of claim 4, wherein the logic that determines whether the at least one framing characteristic complies with at least one framing guideline stored in a memory accessible to the image capture device further comprises:

logic that identifies at least one guideline coordinate specified by the at least one framing guideline, the at least one guideline coordinate identifying a reference coordinate range in the image associated with a face of a subject; and
logic that determines whether the face is within the reference coordinate range.

6. The image capture device of claim 4, wherein the logic that reframes the image when the at least one framing characteristic does not comply with at least one of the framing guidelines further comprises logic that crops a region of the image surrounding at least a portion of the subject, the subject placed within the region to comply with the at least one framing guideline.

7. The image capture device of claim 1, wherein the logic that identifies at least one framing characteristic associated with the image further comprises:

logic that identifies a subject in the image; and
logic that calculates a percentage of the subject that appears in the image.

8. The image capture device of claim 7, wherein the at least one framing guideline specifies a percentage range of the subject that should appear in the image, and the logic that reframes the image when the at least one framing characteristic does not comply with at least one of the framing guidelines further comprises logic that crops a region of the image surrounding at least a portion of the subject, a size of the region selected so that the percentage of the subject that appears in the region is within the percentage range.

9. The image capture device of claim 1, wherein the at least one framing guideline further comprises at least one of: a distance of an object in the image from the image capture device, a percentage of the image comprising a background, a percentage of the image comprising a foreground, a percentage of the object visible in the image, lighting sufficiency of the image, and whether a light source appears in the image.

10. The image capture device of claim 9, wherein the logic that determines whether the at least one framing characteristic complies with at least one framing guideline further comprises logic that generates a framing score associated with the image, the framing score comprising a measure that expresses an extent to which the image complies with each of the framing guidelines.

11. A method, executed in an image capture device, comprising the steps of:

initiating capture of an image via an image sensor associated with the image capture device;
identifying at least one framing characteristic associated with the image;
determining whether the at least one framing characteristic complies with at least one framing guideline stored in a memory accessible to the image capture device; and
reframing the image when the at least one framing characteristic does not comply with at least one of the framing guidelines.

12. The method of claim 11, wherein the step of determining whether the at least one framing characteristic compiles with at least one framing guideline further comprises calculating a framing score associated with the image, the framing score representing a framing quality of the image, the framing score based at least upon a deviation of the at least one framing characteristic from the at least one framing guideline.

13. The method of claim 11, wherein the step of identifying at least one framing characteristic associated with the image further comprises the steps of:

identifying a subject in the image; and
calculating a percentage of the image in which the subject appears.

14. The method of claim 13, wherein the subject is an object corresponding to at least one person and step of identifying at least one frame characteristic associated with the image further comprises the steps of:

identifying a face associated with the at least one person; and
determining at least one coordinate corresponding to a position of the face in the image.

15. The method of claim 14, wherein the step of determining whether the at least one framing characteristic complies with at least one framing guideline stored in a memory accessible to the image capture device further comprises the steps of:

identifying at least one guideline coordinate specified by the at least one framing guideline, the at least one guideline coordinate identifying a reference coordinate range in the image associated with a face of a subject; and
determining whether the face is within the reference coordinate range.

16. The method of claim 14, wherein the step of reframing the image when the at least one framing characteristic does not comply with at least one of the framing guidelines further comprises the step of cropping a region of the image surrounding at least a portion of the subject, the subject placed within the region to comply with the at least one framing guideline.

17. The method of claim 11, wherein the step of identifying at least one framing characteristic associated with the image further comprises the steps of:

identifying a subject in the image; and
calculating a percentage of the subject that appears in the image.

18. The method of claim 17, wherein the at least one framing guideline specifies a percentage range of the subject that should appear in the image, and the step of reframing the image when the at least one framing characteristic does not comply with at least one of the framing guidelines further comprises the step of cropping a region of the image surrounding at least a portion of the subject, a size of the region selected so that the percentage of the subject that appears in the region is within the percentage range.

19. The method of claim 11, wherein the at least one framing guideline further comprises at least one of: a distance of an object in the image from the image capture device, a percentage of the image comprising a background, a percentage of the image comprising a foreground, a percentage of the object visible in the image, lighting sufficiency of the image, and whether a light source appears in the image.

20. A system, comprising:

means for initiating capture of an image via an image sensor associated with the image capture device;
means for identifying at least one framing characteristic associated with the image;
means for determining whether the at least one framing characteristic complies with at least one framing guideline stored in a memory accessible to the image capture device; and
means for reframing the image when the at least one framing characteristic does not comply with at least one of the framing guidelines.
Patent History
Publication number: 20130021512
Type: Application
Filed: Sep 14, 2011
Publication Date: Jan 24, 2013
Applicant: BROADCOM CORPORATION (Irvine, CA)
Inventors: Naushir Patuck (Cambridge), Benjamin Sewell (Truro)
Application Number: 13/232,052
Classifications
Current U.S. Class: Modification Of Displayed Image (348/333.12); 348/E05.024
International Classification: H04N 5/225 (20060101);