Edge Detection Using Morphological Directional Gradient
Morphological gradient with threshold is a common way for edge detection, however, it is sensitive to noise, and easily results in false edges, a method for edge detection using morphological directional gradient is proposed, which employs both gradient magnitude and direction to detect edges. Morphological gradient magnitude and threshold are used to detect edges including false edges, and gradient direction with its directional difference threshold is served to check and remove noise caused false edges. Experiments show that this method can efficiently suppress false edges with high signal noise ratio and good localization precision.The effect of edge detection is superior to traditional morphological gradient.
Edge Detection Morphology Directional Gradient False Edges Threshold
Xiaopeng Wang Tao Lei Yingjie Li
School of Electronic and Information Engineering, Lanzhou Jiaotong University Lanzhou, Gansu, 730070, China
国际会议
杭州
英文
408-411
2006-10-12(万方平台首次上网日期,不代表论文的发表时间)