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http://dx.doi.org/10.3745/KIPSTB.2004.11B.3.247

A Block Matching Algorithm using Motion Vector Predictor Candidates and Adaptive Search Pattern  

Kwak, Sung-Keun (인천전문대학 컴퓨터정보과)
Wee, Young-Cheul (아주대학교 컴퓨터공학)
Kim, Ha-JIne (아주대학교 컴퓨터공학과)
Abstract
In this paper, we propose the prediction search algorithm for block matching using the temporal/spatial correlation of the video sequence and the renter-biased property of motion vectors The proposed algorithm determines the location of a better starting point for the search of an exact motion vector using the point of the smallest SAD(Sum of Absolute Difference) value by the predicted motion vector from the same block of the previous frame and the predictor candidate pint in each search region and the predicted motion vector from the neighbour blocks of the current frame. And the searching process after moving the starting point is processed a adaptive search pattern according to the magnitude of motion vector Simulation results show that PSNR(Peak-to-Signal Noise Ratio) values are improved up to the 0.75dB as depend on the video sequences and improved about 0.05∼0.34dB on an average except the FS (Full Search) algorithm.
Keywords
Predictor Candidate Point; Block Matching Algorithm;
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