Regions of interest for quality adjustments
First Claim
1. A method comprising:
- identifying a region of interest for a video picture, wherein the region of interest corresponds to a first part of the video picture having plural units, wherein the plural units of the first part of the video picture each have an initial encoding setting established by a video encoder; and
adjusting the initial encoding setting for at least one of the plural units of the first part of the video picture relative to encoder settings for other parts of the video picture, wherein the adjusting is based at least in part on region-of-interest information associated with the region of interest, wherein the region of interest is identified based at least in part on input received from a user interface, the region-of-interest information comprising;
at least one dead zone parameter including at least one of inter and intra block dead zone information; and
quantization step size information;
encoding the video picture using the adjusted encoding setting.
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Accused Products
Abstract
Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information).
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Citations
14 Claims
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1. A method comprising:
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identifying a region of interest for a video picture, wherein the region of interest corresponds to a first part of the video picture having plural units, wherein the plural units of the first part of the video picture each have an initial encoding setting established by a video encoder; and adjusting the initial encoding setting for at least one of the plural units of the first part of the video picture relative to encoder settings for other parts of the video picture, wherein the adjusting is based at least in part on region-of-interest information associated with the region of interest, wherein the region of interest is identified based at least in part on input received from a user interface, the region-of-interest information comprising; at least one dead zone parameter including at least one of inter and intra block dead zone information; and quantization step size information; encoding the video picture using the adjusted encoding setting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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identifying a region of interest for a video picture, wherein the region of interest specifies a first part of the video picture having plural units, and wherein the plural units of the first part of the video picture each have an initial encoding setting established by a video encoder; and adjusting the initial encoding setting for at least one of the plural units of the first part of the video picture relative to encoder settings for other parts of the video picture, wherein the adjusting is based at least in part on one or more region-of-interest settings associated with the region of interest; and wherein the region of interest is parameterized by information comprising; information indicating the spatial dimensions of the at least one region of interest; and information indicating the one or more region-of-interest settings; wherein the information indicating the one or more region-of-interest settings comprises region-of-interest dead zone information comprising inter block dead zone information and intra block dead zone information; compressing the video picture using the adjusted encoded setting. - View Dependent Claims (11, 12, 13, 14)
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Specification