Patent ID: 11889062
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An encoding apparatus for image encoding, the encoding apparatus comprising:
a memory; and
at least one processor connected to the memory, the at least one processor configured to:
derive prediction samples for a current block based on prediction mode information;
derive residual samples based on the prediction samples;
derive transform coefficients based on the residual samples;
derive quantized transform coefficients through a quantization process based on the transform coefficients; and
encode image information including residual information generated based on the quantized transform coefficients and the prediction mode information,
wherein the image information includes an adaptation parameter set (APS),
wherein the APS is identified based on APS ID information related to an identifier of the APS,
wherein the APS includes scaling list data based on APS type information for APS parameters included in the APS, and
wherein a range of values of the APS ID information is determined based on the APS type information.