Patent ID: 11956439
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The apparatus of claim 10,
wherein the neighboring luma samples include at least one of one or more left neighboring sample columns or one or more above neighboring sample rows of the video unit;
wherein a total number of the neighboring luma samples is depends on a size information of the video region;
wherein the scaling process is based on a piecewise linear model, and wherein an index identifying a piece to which the averaged luma variable belongs, and the at least one scaling factor is derived based on the index;
wherein a syntax element indicative of enabling or disabling the scaling process below a picture level is conditionally included at the picture level associated with the current chroma video block, and
wherein in response to a value of the syntax element being equal to one, the application of the scaling process below the picture level is enabled, and in response to the value of the syntax element being equal to zero, the application of the scaling process below the picture level is disabled.