The paper proposed a region filling algorithm based on crack chain code description.

提出了一种基于缝隙码的区域填充算法.

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And the paper also gives the characters the chain and the algorithm the chain code.

本文首次提出了可变夹角链码的定义,给出了可变夹角链码的性质和生成算法.

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A fast extraction algorithm is presented according to the characteristics of vector chain code.

在提取拐点的工作中,利用向量链码的特性,提出一种特征点的快速提取方法.

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