motion vector prediction method for inter prediction, and motion vector prediction apparatus for inter prediction

摘要

Provided are motion vector predicting method and apparatus for encoding and decoding a video. The motion vector prediction method includes: determining a plurality of candidate blocks that are referred to so as to predict a motion vector of a current block, from neighboring blocks of the current block; determining a candidate motion vector of a first candidate block in the plurality of candidate blocks, based on whether a reference image of the first candidate block and a reference image of the current block are each a long-term reference image; and determining the motion vector of the current block by using a candidate motion vector list including the determined candidate motion vector of the first candidate block and candidate motion vectors from remaining candidate blocks.