DEVICE AND METHOD FOR ENCODING/DECODING MOTION INFORMATION

摘要

PURPOSE: A movement information encoding/decoding device and a method thereof are provided to determine the resolution of a motion vector about a current block by using a plurality of prediction motion vectors and to improve encoding efficiency by encoding information determined according to the resolution. CONSTITUTION: A motion vector resolution determiner (210) determines the resolution of a motion vector about a current block by using a plurality of prediction motion vectors generated in each current block. A distance measurement unit (212) measures a distance value between one or more motion vectors by using the prediction motion vectors. A distance selecting unit (214) selects one of distance value groups based on a specific standard. A motion vector encoding unit (220) outputs motion information encoding data by using information received from the motion vector resolution determiner. [Reference numerals] (212) Distance measurement unit; (214) Distance selecting unit; (220) Motion vector encoding unit; (AA) Projected motion vector; (BB) Motion information encoding data