这种算法以多边形顶点法矢最简化准则为基本依据，能在保证地形视觉效果的前提下，对模型进行大幅度简化。

This algorithm considers the polygon vertex normal predigesting rule as a basic gist. On the precondition of assuring terrain effect, it can predigest models in large extent.

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多波束测深系统中经常使用幅度法或相位法来进行海底检测，并且按某种准则来选择，但如果选择错误，可能会带来不可预测的误差。

Amplitude based methods or phase based methods are usually used in multi-beam bathymetry system and chosen according to some rule, which may bring about unpredictable errors if wrong choose occurs.

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研究结果表明，在运动估计中加入此准则算法，搜索速度有较大幅度提高，而图像质量和码流基本保持不变。

The experimental results expatiate that the average speed of search can increase greatly by introducing the proposed algorithm without considerable performance and bit-rate change.

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