FIELD: physics.
SUBSTANCE: video decoding device includes: a receiver and a decoder configured to: extract, from the received bitstream, the encoding unit size information, which is a data unit for decoding the encoded video image, the variable depth of the encoding unit, the partitioning information, and the encoding mode with respect to the encoding units having a tree-like image structure; determining the maximum size of the coding unit based on the information on the size and variable depth; splitting the image into one or more maximum coding units based on a certain maximum size; determining the encoding units having a tree-like structure of the image based on the partitioning information and decoding the image based on certain encoding units based on the encoding mode.
EFFECT: increasing the efficiency of decoding video by using a hierarchical unit of encoding.
15 dwg, 1 tbl
