| Summary: | 碩士 === 國立臺灣海洋大學 === 資訊工程學系 === 102 === For video coding standards with high compression ratio and quality, prediction is an essential step. If the prediction is more accurate, then lower bit-rate will be achieved. In this paper, a method is proposed to improve the coding efficiency for motion vectors using predicted motion vector candidate set (PMVCS). PMVCS consists of the motion vectors of blocks, which are the spatial and temporal neighbors of an encoding block. Using the proposed method, a better predicted motion vector can be obtained, which lead to fewer bits allocated for motion vectors. Compared with JM18.4, the proposed method can reduce the bit allocation for motion vectors by 1.37% in average using the image sequence “Bus.” The proposed method can reduce the bit allocation for motion vector of error correction technique by about 0.31% using the same image sequence.
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