本文还提出了一种可插补空间任意圆弧的插补算法，并用C语言进行了可行性验证。
An interpolation algorithm of circular arc in an arbitrary plane was provided, and its feasibility was verified using language c.
结果表明，该方法不仅具有较高的插值精度，而且通用性强，可适用于平面和空间曲线的参数化插值。
The computation results show that the presented interpolation approach has better precision and versatility. And it can be used in parametric interpolation both for planar and spacial curves.
用三次多项式在硬阈值的基础上插值，使新的阈值函数保持了连续性和可导性。
The continuity and differentiability are achieved by using cubic polynomial interpolation based on hard thresholding.
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