directional filter meaning in English

定向过滤器
定向滤波器
方向滤波器
分向滤波器

In gabor filter , we use eight directional filtering to process fingerprint image to compare wiener filtering , we get good process result
在预处理中,采用八个方向的gabor滤波对指纹图像进行滤波,把它与维纳滤波作比较,得了较好的试验结果。
In this dissertation , a combinatorial algorithm based on the directional segmentation is proposed for the preprocessing of the fingerprint images , this combinatorial algorithm is composed of normalization , directional image computation , directional filtering ( gabor filtering ) , local self - adaptive binarization , noise elimination and thinning
本文的预处理算法包括以下步骤:规一化、方向图计算、方向滤波(采用gabor滤波) 、局部自适应二值化、二值化去噪和细化。