METHOD AND DEVICE FOR IMAGE CODING BASED ON SUB-IMAGE Russian patent published in 2023 - IPC H04N19/82 H04N19/86 H04N19/117 H04N19/119 H04N19/132 

FIELD: image encoding and decoding.

SUBSTANCE: residual samples for the current block are generated. Residual information is generated based on the residual samples for the current block. Information related to in-loop filtering is generated for the restored samples of the current picture. Image information including residual information and information related to in-loop filtering is encoded. Moreover, the image information includes a sequence parameter set (SPS) and a picture header. When the SPS includes information related to the sub-picture, information about the number of virtual borders and information about the positions of virtual borders are not included in the picture header, but are included in the SPS.

EFFECT: increased efficiency of image encoding.

8 cl, 14 dwg, 12 tbl