Method and apparatus for sample adaptive offset parameter estimation for image and video coding
AssigneeTexas Instruments Incorporated
InventorMadhukar Budagavi
Life of this patent
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Abstract
A method and apparatus for decoding video. The method includes determining a sample adaptive offset edge type of at least a portion of the image, determining a boundary edge type of the at least a portion of the image, modifying the sample adaptive offset edge type of the at least a portion of the image according to the determined edge type of the at least a portion of the image, selecting a sample adaptive offset type according to at least one of the determined sample adaptive offset edge type or the modified sample adaptive offset edge type, and filtering at least a portion of the image utilizing the selected filter type.
Claims3
A video decoding method, comprising:
- estimating sample adaptive offset parameters using non-deblock filtered pixels of a portion of an image and without using any deblock filtered pixels of the portion of the image;
- performing deblock filtering for the portion of the image to generate deblock filtered pixels for the portion of the image;
- and
- applying sample adaptive offset processing to the deblock filtered pixels of the portion of the image using the estimated sample adaptive offset parameters.
A video decoder comprising a non-transitory computer readable medium including instructions that, when executed, cause the video decoder to:
- estimate sample adaptive offset parameters using non-deblock filtered pixels of a portion of an image and without using any deblock filtered pixels of the portion of the image;
- perform deblock filtering for the portion of the image to generate deblock filtered pixels for the portion of the image;
- and
- apply sample adaptive offset processing to the deblock filtered pixels of the portion of the image using the estimated sample adaptive offset parameters.
A non-transitory computer readable medium comprising instructions that, when executed, cause a video decoder to:
- estimate sample adaptive offset parameters using non-deblock filtered pixels of a portion of an image and without using any deblock filtered pixels of the portion of the image;
- perform deblock filtering for the portion of the image to generate deblock filtered pixels for the portion of the image;
- and
- apply sample adaptive offset processing to the deblock filtered pixels of the portion of the image using the estimated sample adaptive offset parameters.
Dependencies are inferred from the claim text.