SAO Method and apparatus for video encoding with transmitting SAO parameters method and apparatus for video decoding with receiving SAO parameters

摘要

For the current block included in the video, position information of a plurality of bandgroups is obtained from the bitstream, offsets for bands included in each bandgroup are obtained from the bitstream, and based on the position information of the plurality of bandgroups A video decoding method for determining a plurality of bandgroups to compensate a pixel sample value of the current block, and signaling a Sample Adaptive Offset (SAO) parameter for compensating a sample value of a reconstructed pixel included in the current block using the obtained offsets This is initiated. In this case, each determined bandgroup may include at least one band.