Patent ID: 9247247
Filing Date: 2016-01-26
CPC Classification: H04N

Claim Text:
1. A method of decoding a video, the method comprising: receiving a bitstream with respect to an encoded video and parsing the received bitstream; extracting, from the received bitstream, coding unit structure information indicating a size and a variable depth of a coding unit that is a data unit for decoding of a picture of the encoded video, and information about a coded depth and an encoding mode indicating one among prediction types including skip mode, inter mode and intra mode from the bitstream; and determining a current coding unit based on the coding unit structure information, the variable depth of the coding unit and the information about the coded depth, when the encoding mode indicates the skip mode, determining a prediction unit having the same size as the current coding unit; when the encoding mode indicates one of the intra mode and the inter mode, extracting partition type information indicating a partition of a prediction unit; when the encoding mode indicates the intra mode, determining a prediction unit including at least one rectangular block based on the current coding unit and the partition type information; and, when the encoding mode indicates the inter mode, determining a prediction unit including one of a partition, symmetric partitions and asymmetric partitions based on the current coding unit and the partition type information, wherein the symmetric partitions are obtained by symmetrically splitting at least one of a height and a width of the current coding unit, and wherein the asymmetric partitions are obtained by asymmetrically at least one of the height and the width of the current coding unit.