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Abstract

For video coding standards with high compression ratio and good image 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 will result in fewer bits allocated for motion vectors. Compared with JIM18.4, 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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