Computer Science ›› 2014, Vol. 41 ›› Issue (2): 285-289.

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New Method for Road Extraction Based on Modified Path Opening Algorithm

WANG Shuang and CAO Guo   

  • Online:2018-11-14 Published:2018-11-14

Abstract: A novel method for extracting roads from very high resolution remote sensing images based on modified path opening algorithm was proposed in this paper.We constructed new adjacency graph to detect roads with larger curvature at first.Then,we combined the length of the longest path in path opening algorithm with the geometrical feature of the extracted area in order to effectively detect partly damaged or occluded roads.Finally,decision rule was established,which can automatically set the parameter values for road extraction.Experimental results show that the proposed method can greatly improve the extraction result for incomplete roads.

Key words: Path opening,Damaged roads,Road extraction,Geometrical feature

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