System for predictive coding of depth maps and the depth map coder

摘要

The predictive method of encoding the depth map includes the following steps: the depth map is taken; the depth map is divided into blocks; the depth map is decomposed by a four-block sub-block tree; each of the sub-blocks is approximated as an area that has three points of the plane (p0, p1, p2);an encoded depth map is presented in the form of a set of planes defined by parameters. The method is characterized in that it further comprises the following steps: the coding order of the subblocks is determined; when coding successive subblocks: predictors are calculated for points of the plane (p0, p1, p2) of the currently coded subblock; calculate the differences 'p0,' p1, 'p2 between the actual values of the plane points (p0, p1, p2) and the values of the corresponding predictors, the plane parameters for the currently coded subblock are presented in the form of the differences' p0, 'p1,' p2.