Patent ID: 11930169
Assignee: HFI INNOVATION INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for video coding, the method comprising:
receiving reconstructed chroma samples and related reconstructed luma samples in a colour picture with a target chroma format;
applying first ALF (Adaptive Loop Filter) processing to the reconstructed chroma samples for a target reconstructed chroma sample to generate a first filtered chroma sample;
applying second ALF processing to the related reconstructed luma samples to generate a second filtered chroma sample for the target reconstructed chroma sample, wherein positions of the related reconstructed luma samples selected for the second ALF processing are determined based on the target chroma format; and
generating a final filtered chroma sample by combining the first filtered chroma sample and the second filtered chroma sample, wherein the final filtered chroma sample is used as a video decoding output or used for further video encoding or decoding process,
wherein the positions of the related reconstructed luma samples selected for the second ALF processing are determined according to a calculation with one or more variables derived based on the target chroma format.