A coarse(rotary scanning m ethod) to fine(a non orthogonal four coefficient w avelet edge detector)m ethod foredge detection ofradially distributed linearobjects ispresented in thispaper.

• 提出一种由粗（旋转式扫描法）到细（特殊设计的四系数非正交小波边沿检测滤波器）、适用于复杂图像中呈辐射状分布、线状物体边沿的提取方法。