Perfecting the effect of flash within an image acquisition devices using face detection
First Claim
1. Within a digital acquisition device with a built in flash unit, a method of perfecting the exposure of an acquired digital image using face detection in said acquired image, comprising:
- (a) identifying a plurality of groups of pixels that correspond to plurality images of faces within a digitally-acquired image, and determining corresponding image attributes to said groups of pixels, said groups of pixels of faces being given a certain weight based on a distance of said groups of pixels to the device;
(b) generating in-camera, capturing or otherwise obtaining in-camera a collection of low resolution images including said faces, wherein said determining corresponding image attributes is based on said low resolution images;
(c) performing an analysis of said corresponding attributes of said groups of pixels;
(d) determining to activate said built-in flash unit based on said analysis for capturing said digitally-acquired image or determining an intensity of said built-in flash unit based on said analysis, or both.
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Accused Products
Abstract
Within a digital acquisition device with a built in flash unit, the exposure of an acquired digital image is perfected using face detection in the acquired image is provided. Groups of pixels that correspond to plural images of faces are identified within a digitally acquired image, and corresponding image attributes to the group of pixels are determined. An analysis is performed of the corresponding attributes of the groups of pixels. It is then determined to activate the built-in flash unit based on the analysis. An intensity of the built-in flash unit is determined based on the analysis. Alternatively based on similar analysis, a digital simulation of the fill flash is performed on the image.
157 Citations
18 Claims
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1. Within a digital acquisition device with a built in flash unit, a method of perfecting the exposure of an acquired digital image using face detection in said acquired image, comprising:
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(a) identifying a plurality of groups of pixels that correspond to plurality images of faces within a digitally-acquired image, and determining corresponding image attributes to said groups of pixels, said groups of pixels of faces being given a certain weight based on a distance of said groups of pixels to the device; (b) generating in-camera, capturing or otherwise obtaining in-camera a collection of low resolution images including said faces, wherein said determining corresponding image attributes is based on said low resolution images; (c) performing an analysis of said corresponding attributes of said groups of pixels; (d) determining to activate said built-in flash unit based on said analysis for capturing said digitally-acquired image or determining an intensity of said built-in flash unit based on said analysis, or both. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 17)
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9. Within a digital acquisition device with a built in flash unit, one or more processor readable storage devices having processor readable code embodied thereon, said processor readable code for programming one or more processors to perform a method of perfecting the exposure of an acquired digital image using face detection in said acquired image, comprising:
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(a) identifying a plurality of groups of pixels that correspond to plurality images of faces within a digitally-acquired image, and determining corresponding image attributes to said groups of pixels, said groups of pixels of faces being given a certain weight based on a distance of said groups of pixels to the device; (b) generating in-camera, capturing or otherwise obtaining in-camera a collection of low resolution images including said faces, wherein said determining corresponding image attributes is based on said low resolution images; (c) performing an analysis of said corresponding attributes of said groups of pixels; (d) determining to activate said built-in flash unit based on said analysis for capturing said digitally-acquired image or determining an intensity of said built-in flash unit based on said analysis, or both. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 18)
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Specification