Transform-skip residual coding of video data
AssigneeAlibaba Group Holding Limited
InventorsMohammed Golam SARWER, Yan YE, Jiancong LUO
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Abstract
The present disclosure provides systems and methods for transform-skip residual video data coding and decoding. One exemplary method comprises: performing a first pass of scanning a transform coefficient of a sub-block of a video frame, wherein the first pass of scanning comprises: bypass coding a parity level flag for the transform coefficient, the parity level flag indicating a parity of an absolute value of a level of the transform coefficient.
Claims24
A coding method implemented by an encoder of video data, the method comprising:
- performing a first pass of scanning a transform coefficient of a sub-block of a video frame, wherein the first pass of scanning comprises:
- bypass coding a parity level flag for the transform coefficient, the parity level flag indicating a parity of an absolute value of a level of the transform coefficient.
A decoding method implemented by a decoder of video data, the method comprising:
- performing a first pass of scanning a transform coefficient of a sub-block of a video frame, wherein the first pass of scanning comprises:
- bypass decoding a parity level flag for the transform coefficient, the parity level flag indicating a parity of an absolute value of a level of the transform coefficient.
A system to encode video data, the system comprising:
- a memory storing a set of instructions;
- and
- a processor configured to execute the set of instructions to cause the system to:
- perform a first pass of scanning a transform coefficient of a sub-block of a video frame, wherein the first pass of scanning comprises:
- bypass coding a parity level flag for the transform coefficient, the parity level flag indicating a parity of an absolute value of a level of the transform coefficient.
A system to decode video data, the system comprising:
- a memory storing a set of instructions;
- and
- a processor configured to execute the set of instructions to cause the system to:
- perform a first pass of scanning a transform coefficient of a sub-block of a video frame, wherein the first pass of scanning comprises:
- decoding a parity level flag for the transform coefficient, the parity level flag indicating a parity of the absolute value of a level of the transform coefficient.
Dependencies are inferred from the claim text.