/Adaptive Loop Filter-based Video Or Image Coding
Abstract

An image decoding method, according to the present disclosure, enables: acquiring, from a bitstream, image information including prediction mode information and adaptive loop filter (ALF) information including alternative filter information for a chroma component of a current block; deriving prediction samples for the current block on the basis of the prediction mode information; generating reconstructed samples on the basis of the prediction samples; and generating modified reconstructed samples for the chroma component of the current block on the basis of the alternative filter information.

Full Text

What is claimed is:

An image decoding method, according to the present disclosure, enables: acquiring, from a bitstream, image information including prediction mode information and adaptive loop filter (ALF) information including alternative filter information for a chroma component of a current block; deriving prediction samples for the current block on the basis of the prediction mode information; generating reconstructed samples on the basis of the prediction samples; and generating modified reconstructed samples for the chroma component of the current block on the basis of the alternative filter information.
Timeline
Filed
03/26/2026
Published
07/30/2026
Granted
Not Available
IPC Codes(7)
H04N 19/117:Filters, e.g. for pre-processing or post-processing (sub-band filter banks H04N 19/635)
H04N 19/13:Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
H04N 19/132:Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking