directional filter

基本解释

Moreover, the texture angle obtained through the directional filter is very close to the actual angel.
同时通过方向性滤波器判断所得的纹理角度也比较接近实际纹理角度。
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This paper proposes the adaptive directional filter, which is exploited for the extracting of left ventricular(LV) contour.
提出基于自适应方向滤波方法来提取左心室轮廓。
Firstly, the error of traditional directional image is corrected and fingerprint image is enhanced by the directional filter.
首先，针对传统方向图求取方法的误差进行修正，并设计了方向滤波器，完成了图像的增强、去噪；

方向滤波
Contrast to wavelet transforms, Directional Filter Banks(DFB) can extract directional and edge information of images better.
相比于小波变换,方向滤波器能够更好地提取图像的方向及边缘信息。
定向过滤器