Fast Detection of Bridges in SAR Images  

作　　者：ZHANG Lili ZHANG Yanning LI Ying WANG Min 

机构地区：[1]School of Computer Science, Northwestern Polytechnical University, Xi ＇ an 710072, China

出　　处：《Chinese Journal of Electronics》2007年第3期481-484,共4页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China （No.60472072）, the Specialized Research Foundation for the Doctoral Program of Higher Education （No.20040699034）, the Aeronautical Science Foundation of China （No.04150370 and No.05153076） and Yellow River Conservancy Commission Research on ecological improment of Yellow River.

摘　　要：A method of bridges detection in SAR （Synthetic aperture radar） images without filtering is proposed in this paper. It includes three algorithms： river segmentation, Beamlet Transform and bridge detection. Since bridges are over the rivers, the river was segmented firstly by thresholding and post-processing. Then Fast Beamlet transform was carried out only for the river region to detect linear features. Based on Beamlet transform, we proposed an algorithm of bridges detection. The bridges were detected according to their features correctly. It received good results in the experiments.

关 键 词：Beamlet transform Bridges detection SAR images Line detection 

分 类 号：TN7[电子电信—电路与系统]