MOTION ESTIMATOR, MOTION ESTIMATING METHOD AND GLOBAL MOTION ESTIMATOR

摘要

A motion estimation apparatus, a motion estimation method and a global motion estimation apparatus are provided to avoid complex calculation processes and obtain a correct global vector by obtaining coefficient values from motion vectors of all blocks. A candidate vector calculating part(10) calculates a plurality of candidate vectors for each block of a frame to be interpolated, based on a previous frame and a current frame. A final motion deciding part(20) selects one of the candidate vectors and outputs the selected candidate vector as a final motion vector of each block. A global vector modeling part(30) performs regression based on the final motion vector in order to model a global vector calculation formula and provides the global vector calculation formula to the candidate vector calculating part. The candidate vector calculating part calculates a global vector for each block of a next frame to be interpolated in accordance with the global vector calculation formula, and provides the global vector as one of the candidate vectors to the candidate vector calculating part.