METHOD AND DEVICE FOR IMAGE ENCODING/DECODING BASED ON MIXED TYPE NAL UNIT AND METHOD FOR TRANSMITTING BIT STREAM Russian patent published in 2023 - IPC H04N19/70 H04N19/184 H04N19/174 H04N19/82 

FIELD: means for image encoding and decoding.

SUBSTANCE: current frame is segmented into one or more subframes. The network abstraction layer (NAL) unit type of each of the plurality of slices included in one or more subframes is determined. A plurality of slices is encoded based on a specific NAL unit type. Here, the current frame is segmented into two or more subframes based on at least some of a plurality of slices having different types of NAL units. In this case, each of the two or more subframes is treated as one frame based on at least some of the plurality of slices having different types of NAL units.

EFFECT: increase in efficiency of image encoding.

14 cl, 17 dwg, 1 tbl