For the false contour problem of the surface rendering, an anisotropic diffusion smoothing algorithm is presented for surface blur.

同时针对表面重建的伪影问题，提出了一种基于各向异性的平滑算法，使得内窥效果更加逼真；

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An improved method based on anisotropic diffusion equation was proposed.

提出了一种基于各向异性扩散方程的改进方法。

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Anisotropic diffusion has good effect on reducing noise and preserving edge, in fact its an iterative process. An important question is to decide when the process should be stopped.

各向异性扩散在抑制噪声与保留边缘方面具有良好的性能，它实际上是一个微分迭代的过程，一个重要问题是这种迭代过程何时停止。

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