Patent ID: 11902581
Assignee: ALIBABA GROUP HOLDING LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A non-transitory computer readable storage medium storing a bitstream associated with a video sequence, wherein the bitstream comprises coded information for reconstructing a chroma block associated with a picture, the coded information comprising:
a coded block flag indicating whether the chroma block has non-zero residuals,
wherein the bitstream is processed according to a method comprising:
reconstructing a plurality of luma samples associated with the picture; and
when the coded block flag indicates that the chroma block has one or more non-zero chroma residues, determining an averaged value of the plurality of reconstructed luma samples, and scaling residues of the chroma block based on the averaged value, prior to reconstructing the chroma block.