IMAGE SIGNAL PROCESSOR AND METHOD FOR GENERATING IMAGE STATISTICS
First Claim
Patent Images
1. An image signal processor (ISP), comprising:
- a client configured to employ image statistics to process a current frame of a scene if changes in said current frame relative to a previous frame of said scene rise above a threshold; and
a statistics engine associated with said client and configured to generate said image statistics based on said current frame if said changes rise above said threshold.
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Abstract
An image signal processor (ISP) and a method of generating image statistics. One embodiment of the ISP includes: (1) a client configured to employ image statistics to process a current frame of a scene if changes in the current frame relative to a previous frame of the scene rise above a threshold, and (2) a statistics engine associated with the client and configured to generate the image statistics based on the current frame if the changes rise above the threshold.
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Citations
25 Claims
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1. An image signal processor (ISP), comprising:
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a client configured to employ image statistics to process a current frame of a scene if changes in said current frame relative to a previous frame of said scene rise above a threshold; and a statistics engine associated with said client and configured to generate said image statistics based on said current frame if said changes rise above said threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of generating image statistics, comprising:
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registering a statistics client with a statistics engine; quantifying change between a current frame and a previous frame of a scene; and employing said statistics engine in generating image statistics if said change rises above a threshold registered by said statistics client. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A digital camera, comprising:
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a camera sensor operable to capture a current frame and a previous frame of a scene; a change detection module configured to quantify a change between said current frame and said previous frame; a statistics engine configured to generate image statistics based on said current frame at a frequency if said change rises above a threshold; and a client configured to specify said threshold and said frequency, and operable to employ said image statistics to process said current frame. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An image signal processor (ISP), comprising:
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a client configured to employ image statistics to process every Nth frame of a scene, wherein N is a frequency period; and a statistics engine associated with said client and configured to generate said image statistics for said every Nth frame. - View Dependent Claims (22, 23, 24, 25)
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Specification