Patent ID: 8824551
Filing Date: 2014-09-02
Classification: H04N

Abstract:
1. A method of decoding a video, the method comprising: receiving a bitstream of an encoded video; obtaining information about a hierarchical structure of coding units in a maximum coding unit, from the bitstream; determining a plurality of maximum coding units split from an image according to a size of the maximum coding unit and decoding the plurality of maximum coding units according to a raster scanning order; determining one or more coding units hierarchically split from the maximum coding unit according to the information about the hierarchical structure of coding units; decoding the one or more coding units in the maximum coding unit according to a zigzag scan order; and decoding four square blocks split from one coding unit, among the one or more coding units, according to the zigzag scan order, wherein when the four square blocks split from the one coding unit are allocated to block positions (0, 0), (1, 0), (0, 1) and (1, 1) according to the raster scan order, respectively, the zigzag scan order represents an order of the block position (0, 0) to the block position (1, 0) to the block position (0, 1) to block (1, 1).