시간해상도 감소 트랜스코딩을 위한 ASW움직임벡터 정밀화 알고리즘에 관한 연구

Efficient Motion Refinement Algorithm based on ASW for Reduced Frame-Rate Video Transcoder

In this paper, we propose efficient motion vector refinement algorithm for frame-rate reduction transcoding. The proposed algorithm is to set the search range for motion refinement based on the incoming motion vector. The algorithm calculates the importance of motion vector of the skipped frame and then selects two motion vector to set search range. Through this process, we determine the accuracy of incoming motion vector and set the search range lot refinement adaptively by means of the accuracy. In experiments, we show efficiency of our algorithm to reduce the search points for refinement.