VIDEO ENCODING SYSTEM AND METHOD Russian patent published in 2024 - IPC H04N19/117 H04N19/82 H04N19/186 

FIELD: data processing.

SUBSTANCE: invention relates to video and image encoding/decoding, particularly for performing a cross-component adaptive loop filtering (CCALF) process. Encoder includes a circuit and a memory device connected to the circuit. In response to the first reconstructed image sample located outside the virtual boundary, the circuit duplicates the reconstructed sample located inside and near the virtual boundary in order to form the first reconstructed image sample. Circuit generates the first coefficient value by applying the CCALF process to the first reconstructed sample of images of the luminance signal component. Circuit generates a second coefficient value by applying an adaptive loop filtering (ALF) process to a second recovered chroma component image sample. Circuit generates the third coefficient value by summation of the first coefficient value with the second coefficient value and codes the third reconstructed sample of images of the chrominance signal component using the third coefficient value.

EFFECT: high efficiency of encoding/decoding.

2 cl, 164 dwg