Edge detection of potential field data based on image processing methods
作者：TAN Xiaodi,ZHANG Dailei,MA Guoqing
摘要：The conventional methods of edge detection can roughly delineate edge position of geological bodies,but there are still some problems such as low detection accuracy and being susceptible to noise interference.In this paper,three image processing methods,Canny,LoG and Sobel operators are briefly introduced,and applied to edge detection to determine the edge of geological bodies.Furthermore,model data is built to analyze the edge detection ability of this image processing methods,and compare with conventional methods.Combined with gravity anomaly of Sichuan basin and magnetic anomaly of Zhurihe area,the detection effect of image processing methods is further verified in real data.The results show that image processing methods can be applied to effectively identify the edge of geological bodies.Moreover,when both positive and negative anomalies exist and noise is abundant,fake edge can be avoided and edge division is clearer,and satisfactory results of edge detection are obtained.
发文机构：College of Geo-Exploration Science and Technology
关键词：EDGEdetectionimageprocessingCANNYOPERATORLOGOPERATORSOBELOPERATOR
分类号： P[天文地球]
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