Correlation based approach for skipping frames
AssigneeQUALCOMM Incorporated
InventorsSoman Nikhara, Vignesh Bhuvaneshwar
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Abstract
Certain aspects relate to systems, methods, devices and non-transient computer readable medium for correlation based frame skipping of processing intensive image processing algorithms for image adjustments, such as automatic white balance (AWB) operations and automatic exposure correction (AEC) operations. In certain embodiments, if a scene is deemed stable based on determining a correlation between the statistics associated with a current and previous frames, certain steps for the purpose of performing processing intensive image processing algorithms, such as AWB operations and AEC operations, may be skipped.
Claims30
A device for capturing images, comprising:
- a sensor configured to sense image data for a current frame;
- a processor configured to:
- receive image statistics generated using the image data for the current frame;
- determine correlation between the current frame and a previous frame using the image statistics for the current frame and image statistics for the previous frame, wherein the previous frame is a frame prior to the current frame in a sequence of frames;
- determine whether the correlation is below a first threshold;
- and
- based on the determination that the correlation is below the first threshold, generate image color feedback by processing of the image statistics for the frame.
A method for capturing images, comprising:
- accessing image statistics generated using image data for a current frame, wherein image statistics comprises red, green and blue information from the image data for each of a plurality of sub-regions of the current frame;
- determining correlation between the current frame and a previous frame using the image statistics for the current frame and image statistics for the previous frame, wherein the previous frame is a frame prior to the current frame in a sequence of frames;
- determining whether the correlation is below a first threshold;
- and
- based on the determination that the correlation is below the first threshold, generating image color feedback by processing of the image statistics for the current frame.
An apparatus for capturing images, comprising:
- means for accessing image statistics generated using image data for a current frame, wherein image statistics comprises red, green and blue information from the image data for each of a plurality of sub-regions of the current frame;
- means for determining correlation between the current frame and a previous frame using the image statistics for the current frame and image statistics for the previous frame, wherein the previous frame is a frame prior to the current frame in a sequence of frames;
- means for determining whether the correlation is below a first threshold;
- and
- based on the determination that the correlation is below the first threshold, means for generating image color feedback by processing of the image statistics for the current frame.
A non-transitory computer-readable storage medium including machine-readable instructions stored thereon for:
- accessing image statistics generated using image data for a current frame, wherein image statistics comprises red, green and blue information from the image data for each of a plurality of sub-regions of the current frame;
- determining correlation between the current frame and a previous frame using the image statistics for the current frame and image statistics for the previous frame, wherein the previous frame is a frame prior to the current frame in a sequence of frames;
- determining whether the correlation is below a stable threshold;
- and
- based on the determination that the correlation is below the stable threshold, means for generating image color feedback by processing of the image statistics for the current frame.
Dependencies are inferred from the claim text.