FILTRATION-BASED IMAGE ENCODING EQUIPMENT AND METHOD Russian patent published in 2024 - IPC H04N19/117 H04N19/132 H04N19/186 H04N19/70 H04N19/82 

FIELD: data processing.

SUBSTANCE: invention relates to video encoding means. SPS includes an ALF activation flag associated with whether the ALF process is activated or not. Based on the determination that the ALF activation flag value is equal to 1, the SPS includes a cross-component adaptive loop filtering (CCALF) activation flag associated with whether or not cross-component filtering is available. Based on the determination that the value of the ALF activation flag in the SPS is equal to 1, the slice header information includes an ALF activation flag associated with whether the ALF is activated or not. Based on the determination that the value of the ALF activation flag included in the slice header information is 1 and the value of the CCALF activation flag included in SPS is 1, slice header information includes information on whether or not CCALF is activated for filtered reconstructed chroma signal samples. Based on the value of information on whether or not CCALF is activated for filtered reconstructed samples of chroma signals, equal to 1, slice header information includes identification information (ID) of an adaptation parameter set (APS) associated with CCALF for filtered reconstructed chroma samples.

EFFECT: high efficiency of video encoding.

3 cl, 30 tbl, 17 dwg