METHOD AND APPARATUS FOR MOTION VECTOR ENCODING/DECODING USING A PLURALITY OF MOTION VECTOR ESTIMATIONS, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING SAME

摘要

The present invention relates to a method and to an apparatus for motion vector encoding/decoding using a plurality of motion vector estimations, and to a method and to an apparatus for image encoding/decoding using same. The apparatus for encoding a motion vector comprises: a motion vector estimation unit which estimates a plurality of motion vectors in such a manner that one motion vector among the plurality of motion vectors is estimated as a motion vector of the current block, and the other motion vectors among the plurality of motion vectors are estimated in accordance with the image encoding apparatus and one or more predetermined estimation references; and a motion vector encoding unit for encoding the motion information generated by using the plurality of motion vectors. The present invention estimates more accurate motion vector, and reduces the bit rate for encoding the motion vector, thus improving compression efficiency.