/ / Method and Apparatus of adaptive motion vector predictors selection for competition-based motion vector coding and Recording Medium therefor

摘要

An adaptive competition-based motion candidate vector calculation technique for efficient motion vector coding / decoding and a motion vector coding / decoding device using the same are disclosed. The motion vector coding apparatus according to the present invention includes: a candidate prediction motion vector classifier for classifying each candidate prediction motion vector constituting a set of candidate prediction motion vectors into a plurality of candidate sets according to characteristics of each candidate prediction motion vector; A representative motion vector is selected for each candidate set classified in the candidate prediction motion vector classifier, the difference between each representative motion vector selected from each candidate set is compared with a threshold value, A representative motion vector selection unit for selecting at least one of the representative motion vectors; And a motion vector coding unit for coding the difference between the representative motion vector selected by the representative motion vector selection unit and the motion vector of the current block.