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In this paper based on statistical analysis performed on a number of video sequences with different motion characteristics, we show that strong correlation exists between the direction of motion of a block and those of its neighboring blocks. Secondly, we show that a block moves in the same direction as a neighboring block that its prediction vector produces least distortion. Based on these findings...
We present in this paper a fast block matching motion estimation algorithm for H.264/AVC coding standard, based on a study of the motion vector (MV) obtained by the predictive diamond searching algorithm among several test sequences. We found that diamond search is fast and robust for most types of sequence. Based on temporal and spatial motion correlation among adjacent blocks in images, we propose...
In this paper we propose a content aware fast block matching motion estimation algorithm that can reduce the computation complexity of motion estimation module in H.264/AVC while maintaining almost same coding efficiency. In the first step inter block correlation is used to define a correlation coefficient that helps to identify the motion content of the current block. Based on this coefficient the...
In this paper a modified version of the predicted vector spectral search algorithm (PVSSA) is presented. The proposed method adaptively determines the search area for motion estimation. The maximum number of search points for finding the best matched block is lower than that of the PVSSA. Although the proposed algorithm is similar to the PVSSA in terms of regularity, it has lower computational complexity...
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