Patent ID: 11917143
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A non-transitory computer-readable storage medium storing a bitstream generated by a method, the method comprising:
generating reconstructed samples of a current block in a current picture;
generating an adaptive loop filter (ALF) related information for the reconstructed samples;
encoding image information to generate the bitstream, wherein the image information includes information for generating the reconstructed samples and the ALF related information,
wherein the image information comprises an adaptation parameter set (APS),
wherein the APS comprises ALF data,
wherein the ALF data includes information for deriving filter coefficients for an ALF,
wherein the image information comprises header information,
wherein the header information includes multiple ALF related APS ID syntax elements,
wherein the header information includes an ALF related APS IDs number syntax element for signaling an ALF related APS IDs number, and
wherein the multiple ALF related APS ID syntax elements as many as the ALF related APS IDs number are included in the header information.