Filtering-based image coding device and method
AssigneeLG Electronics Inc.
InventorsHendry HENDRY, Seethal PALURI, Seunghwan KIM
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Abstract
According to embodiments of the present document, information for carrying out in-loop filtering across virtual boundaries can be efficiently signaled. For example, in-loop filtering can be carried out on the basis of signaling of information which is related to whether in-loop filtering across virtual boundaries is enabled or not.
Claims25
An image decoding method performed by a decoding apparatus, comprising:
- obtaining image information including residual information through a bitstream;
- generating reconstructed samples of a current picture, based on the residual information;
- and
- generating modified reconstructed samples, based on an in-loop filtering process for the reconstructed samples,
- wherein the image information includes a sequence parameter set (SPS),
- wherein the SPS includes an SPS virtual boundaries enabled flag, and
- wherein the in-loop filtering process is performed across the virtual boundaries, based on the SPS virtual boundaries enabled flag.
An image encoding method performed by an encoding apparatus, comprising:
- generating residual samples for a current block;
- generating residual information, based on the residual samples for the current block;
- generating in-loop filtering-related information for reconstructed samples of a current picture;
- and
- encoding image information including the residual information and the in-loop filtering-related information,
- wherein the image information includes a sequence parameter set (SPS), and
- wherein the in-loop filtering-related information includes an SPS virtual boundaries enabled flag related to whether an in-loop filtering process is performed across virtual boundaries.
A computer readable storage medium storing encoded information causing an image decoding apparatus to perform an image decoding method, the image decoding method comprising:
- obtaining image information including residual information through a bitstream;
- generating reconstructed samples of a current picture, based on the residual information;
- and
- generating modified reconstructed samples, based on an in-loop filtering process for the reconstructed samples,
- wherein the image information includes a sequence parameter set (SPS),
- wherein the SPS includes an SPS virtual boundaries enabled flag, and
- wherein the in-loop filtering process is performed across the virtual boundaries, based on the SPS virtual boundaries enabled flag.
Dependencies are inferred from the claim text.