METHOD AND APPARATUS FOR DEPTH ENCODING AND METHOD AND APPARATUS FOR DEPTH DECODING

摘要

Provided is a video decoding method which comprises the steps of: obtaining segment representative value encoding mode information representing whether a segment representative value encoding mode is allowed to a depth image from a bitstream; determining prediction mode information and partition mode information applied to an encoding unit of the depth image; obtaining a segment representative value encoding flag representing whether the segment representative value encoding mode is applied to the encoding unit from the bitstream upon the segment representative value encoding mode information, the prediction mode information, and the partition mode information; when the segment representative value encoding flag represents that the segment representative value encoding mode is applied to the encoding unit, obtaining a residual representative value corresponding to a prediction unit of the encoding unit from the bitstream; and restoring the current block of the prediction unit by using prediction values of the prediction unit and the residual representative value, wherein the residual representative value is characterized by being obtained from a residual block of the prediction unit.