Patent ID: 11870996
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
determining that a transform skip mode is applied to a residual block of a current video block of the video, wherein a sample of the residual block represents a prediction residual between a sample of the current video block and a prediction sample corresponding to the sample of the current video block, and wherein, in the transform skip mode, a transform operation or an inverse transform operation is skipped for the prediction residual; and
generating the bitstream of the video based on the determining,
wherein the residual block is coded in the bitstream as a plurality of regions, wherein each region represents a portion of the residual block, wherein the residual block has a size K*L, wherein K and L are integers, and wherein a size Ki*Li of an i-th region of the plurality of regions is based on the size of the residual block,
wherein a third syntax element indicating transform coefficient levels of a last region of the plurality of regions is not included in the bitstream, and
wherein a context model index of the third syntax element is calculated based on a sum of a context model index of the third syntax element of a left neighboring sample and a context model index of the third syntax element of an above neighboring sample.