ZHANG Jianqing, LIU Pengfei, WANG Hua, LIU Yongliang. Semi-automatic Road Extraction with Meanshift Algorithm[J]. Geomatics and Information Science of Wuhan University, 2010, 35(6): 719-722.
Citation:
ZHANG Jianqing, LIU Pengfei, WANG Hua, LIU Yongliang. Semi-automatic Road Extraction with Meanshift Algorithm[J]. Geomatics and Information Science of Wuhan University, 2010, 35(6): 719-722.
ZHANG Jianqing, LIU Pengfei, WANG Hua, LIU Yongliang. Semi-automatic Road Extraction with Meanshift Algorithm[J]. Geomatics and Information Science of Wuhan University, 2010, 35(6): 719-722.
Citation:
ZHANG Jianqing, LIU Pengfei, WANG Hua, LIU Yongliang. Semi-automatic Road Extraction with Meanshift Algorithm[J]. Geomatics and Information Science of Wuhan University, 2010, 35(6): 719-722.
1School of Remote Sensing and Information Engineering,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China;3Chengdu Hydroelectric Investigation & Design Institute of SPC,1 North Huanhua Road,Chengdu 610072,China
We introduced Meanshfit algorithm to the road extraction in small scale aero-borne image by estimating the local maximum of the possibility distribution nearby the specified points.With the shadow kernel of the kernel function,the searching process will climb to the top along the gradient direction of the possibility densities with a fast convergence speed.We extracted the road points nearby the old road vectors for change detection,and traced the new road with a single initial point.Experiments prove the validities of this algorithm.
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