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In this paper, we describe a data compression technique for stereo-pairs using pixel-based disparity compensation (DC). The bit-rate of prediction residual of the proposed pixel-based DC is lower than... that of block-based DC, which has been used commonly. Although the bit-rate of disparity becomes high on the pixel-based DC, we can relax this problem by imposing several restrictions on DC. It is also shown that the performance of the proposed technique can be improved by the following two modifications. Firstly, previous pixel prediction is selectively used around occlusion areas. Secondly, instead of pixels, blocks of one pixel width are employed as a unit of DC. The effectiveness of the proposed technique is observed through experiments.続きを見る
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