Patent ID: 11917169
Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. 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, for a first video block of a video, that a first prediction mode is applied to the first video block;
maintaining a predictor palette table;
constructing, in the first prediction mode, a first palette comprising one or more palette predictors for the first video block based on the predictor palette table; and
generating a bitstream of the video based on the first prediction mode,
wherein in the first prediction mode, reconstructed samples of the first video block are represented by a set of representative color values, and the set of representative color values comprises at least one of 1) palette predictors derived from the first palette, 2) escaped samples, or 3) palette information included in the bitstream,
wherein a maximum number of entries in the first palette is based on a tree type of the first video block,
wherein the first prediction mode is applied to a second video block of the video, and a second palette for the second video block is constructed based on the predictor palette table, and
wherein in a case that a single tree is applied to the first video block and a local dual tree is applied to the second video block, the maximum number of entries in the second palette is half of the maximum number of entries in the first palette.