Method and device for decoding with palette mode
AssigneeTencent America LLC
InventorsJing YE, Shan LIU, Xiaozhong XU, Xiang LI
Life of this patent
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Abstract
A method for decoding a video sequence of a coded video stream, performed by at least one processor, using at least one color palette in a palette mode, each of the at least one color palette including at least one luma value or at least one chroma value, the method including determining whether a current tree structure is a dual tree structure where a luma color plane has a split tree structure that is different from a split tree structure of a chroma color plane; and decoding at least one image of the video sequence using one or more color palettes of the at least one color palette based on the determining whether the current tree structure is the dual tree structure.
Claims20
A method for decoding a video sequence of a coded video stream, performed by at least one processor, using at least one color palette in a palette mode, each of the at least one color palette including at least one luma value or at least one chroma value, the method comprising:
- determining whether a current tree structure is a dual tree structure where a luma color plane has a split tree structure that is different from a split tree structure of a chroma color plane;
- and
- decoding at least one image of the video sequence using one or more color palettes of the at least one color palette based on the determining whether the current tree structure is the dual tree structure.
A method for decoding a video sequence of a coded video stream, performed by at least one processor, using at least one color palette in a palette mode, the method comprising:
- generating a first palette predictor list, the generating comprising:
- determining whether at least one neighboring block of a current block is in the palette mode;
- and
- inserting at least one palette entry from a neighboring block of the at least one neighboring block into the first palette predictor list, based on the neighboring block being determined to be in palette mode;
- generating a second palette predictor list of the current block;
- generating a combined palette predictor list by combining at least one palette entry of the first palette predictor list with at least one palette entry of the second palette predictor list;
- decoding the current block of the video sequence using the combined palette predictor list, the decoding including predicting a palette of the at least one color palette using the combined palette predictor list.
A non-transitory computer-readable storage medium storing instructions that cause at least one processor to:
- determine whether a current tree structure is a dual tree structure where a luma color plane has a split tree structure that is different from a split tree structure of a chroma color plane;
- and
- decoding at least one image of a video sequence using one or more color palettes of an at least one color palette in a palette mode based on determining whether the current tree structure is the dual tree structure, wherein
- each of the at least one color palette includes at least one luma value or at least one chroma value.
Dependencies are inferred from the claim text.