在编码过程中，对于不同的输入矢量，自适应产生不同的动态码字搜索范围及顺序而排除大部分码字。
During the encoding process, the adaptive searching range and sequence are obtained for each input vector in order to reject a lot of unmatched codewords.
提出一种能自适应的确定相关匹配搜索范围的快速相关跟踪算法。
A fast correlation tracking algorithm which can adaptively determine the search range in correlation matching is proposed.
然后根据图像和视差范围的大小分层，建立由粗及细的自适应分层图像金字塔结构，加快搜索速度、减少错误匹配；
Then, according to restriction of the image size and the disparity range, the coarse to fine adaptive hierarchical image pyramids have been built to search fast and reduce wrong matching.
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