轮廓对应问题的解决是基于轮廓数据曲面重构的关键工作，是保证重建网格模型拓扑关系正确性的基础。

The solution to the correspondence problem is important for reconstruction of surface from contours, especially for validity of topology of the reconstructed triangular mesh.

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散乱数据重建存在点与点之间几何拓扑关系建立困难和存在大量冗余数据两大难点。

The foundation of geometry topology relation between points each other and being many redundancy data are two great difficulties in the process of reconstruction of scattered data.

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