Patent ID: 9503721
Filing Date: 2016-11-22
CPC Classification: H04N

Claim Text:
1. A video decoding method performed by a video decoding apparatus for predicting a current block to be decoded, the method comprising: extracting an index for use in identifying a predicted motion vector of the current block and a differential motion vector from a bitstream; determining one or more representative blocks using neighboring blocks of the current block, in consideration of priorities of block positions; determining the predicted motion vector of the current block to be a motion vector identified by the extracted index; and generating a predicted block of the current block by reconstructing a motion vector of the current block based on the determined predicted motion vector and the extracted differential motion vector, wherein the determining of the one or more representative blocks comprises considering a difference between a first picture order count (POC) corresponding to a first reference picture of a neighboring block and a second picture order count (POC) corresponding to a second reference picture of the current block when a first inter prediction direction corresponding to the neighboring block and a second inter prediction direction corresponding to the current block are identical.