Title :
A fast interactive road extraction algorithm from SAR imagery
Author :
Ge Xu ; Jun Sun ; Yanwei Ju ; Zhiqiang Huang
Author_Institution :
Nanjing Res. Inst. of Electron. Technol., Nanjing
Abstract :
In this work, we present a fast interactive road extraction algorithm to extract roads from SAR imagery. After cross-correlation line detection, the detected road candidate pixels are vectorized for line segments. From the set of the line segments, a weighted directed graph is built by connecting these detected segments. Based on the graph and pairs of seed points by human operator, the road network is completely extracted via shortest-path searching algorithm. Our experimental result shows our algorithm is able to quickly and correctly extract road network.
Keywords :
feature extraction; geophysical signal processing; image representation; radar imaging; remote sensing by radar; roads; synthetic aperture radar; SAR imagery; cross-correlation line detection; image representation; interactive road extraction; line segments; linear feature; road candidate pixels; shortest-path searching; synthetic aperture radar; weighted directed graph; Linear feature; Road extraction; SAR imagery; Shortest-path;
Conference_Titel :
Radar Conference, 2009 IET International
Conference_Location :
Guilin
Print_ISBN :
978-1-84919-010-7
