利用低通滤波作预处理对旋滤波进行改进

An improvement in spin filtering by introducing lowpass filter

旋滤波方法在条纹图的处理中得到了比较广泛地应用,为了使其在噪声比较强的时候也能获得好的效果,在其方法中加入了低通滤波,以此来改善方位图,从而改善旋滤波的滤波效果。并且利用零阶开环高斯滤波算法,对低通滤波图像的边缘进行了修正。实验结果表明,改进后的方法能得到更好的条纹方位图,从而提高旋滤波的处理精度。

Spin filter is widely used in the processing of fringe. To get over strong noise, the lowpass filter was introduced. The algorithm of zero-order Gaussian filtering for an open profile （GFO） was used to correct the edge of the filtered image. The experimental result shows that the improvements are effective.