图像中值滤波和双边滤波的曲面光顺

Surface Smoothing Method Using Distance Image Median Filtering and Bilateral Filtering

本文提出一种基于距离图像中值和双边组合滤波的曲面光顺方法,适用于激光扫描成像系统。该方法充分利用激光扫描成像系统输出的距离图像所包含的空间拓扑信息,结合双边滤波思想在曲面光顺应用中的优势与不足,采用二维处理方式实现曲面光顺,能最大程度保持曲面原形,同时大大降低了计算复杂度。实验结果表明,该方法能有效实现曲面光顺,且相比于传统算法有8倍以上的速度提升,更能满足实时性要求。

A new method of surface smoothing based on the distance image median filtering and bilateral filtering is proposed, which can be applied to laser scanning imaging system. The method makes full use of the spatial topological information contained in the output of laser scanning imaging system, and considers the advantages and disadvantages of the bilateral filtering in surface smoothing carefully, then carries out the two dimensional processing to make surface smoothed, with maintaining surface’s shape to the maximum extent. Experimental results show that the proposed method can effectively achieve the surface smoothing, and its effect is better than traditional algorithms. Furthermore it is 8 times faster than traditional algorithms, so it can meet the real-time requirements more.