基于融合边缘检测的SAR图像线性特征提取算法

安成锦; 杜琳琳; 王卫华; 陈曾平

doi:10.3724/SP.J.1146.2008.00896

基于融合边缘检测的SAR图像线性特征提取算法

doi: 10.3724/SP.J.1146.2008.00896

基金项目:

新世纪优秀人才支持计划项目(NCET-06-0921)资助课题

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出版历程
- 收稿日期: 2008-07-18
- 修回日期: 2008-10-31
- 刊出日期: 2009-06-19

Linear Feature Extraction for SAR Image Based on Fused Edge Detector

摘要

摘要: 该文基于合成孔径雷达(SAR)图像低信噪比的特点，设计了一种基于融合边缘检测的线性特征提取算法。首先采用融合Canny算子及ROA算子得到边缘点，然后利用Radon变换得出线基元，最后根据启发式连接的思想连接了由于噪声引起的直线断裂。实测SAR图像的实验结果表明，该文提出的线性特征提取方法能够准确描述SAR图像的线性结构，可应用于自动目标识别和景象匹配等方面。
- 合成孔径雷达;相干斑噪声;边缘检测;线基元提取;启发式连接
Abstract: A linear feature extraction algorithm for Synthetic Aperture Radar (SAR) image is proposed, which is based on the low signal-to-noise quality of SAR image. Firstly, a new edge detector, which fuses the Canny operator and Ratio Of Average (ROA) operator, is used to get the edge points. Then, radon transform is carried out to get the primitive line segments. Finally, the broken lines due to speckle noise are connected by means of the heuristic link idea. The experiment results which are based on the SAR images show, the proposed algorithm can describe the linear characteristic of SAR images precisely, and it can be used for SAR auto target recognition and scene matching.

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参考文献(1)

Canny J. A computational approach to edge detection[J].IEEE Trans. on Pattern Analysis Machine Intelligence.1986,8(11):679-698[2]王程, 王润生. SAR图像直线提取[J]. 电子学报, 2003, 23(3):816-820.Wang Cheng and Wang Run-sheng. Line extraction for SARimage[J]. Acta Electronica Sinica, 2003, 23(3): 816-820.[3]Touzi R, Lopes A, and Bousquet P A. Statistical andgeometrical edge detector for SAR images[J].IEEE Trans. onGeoscience and Remote Sensing.1988, 26(6):764-773[4]Burns B. Extracting straight lines[J].IEEE Trans. Patt. Anal.Machine Intell.1986, PAMI-8(4):425-455[5]Cardoso L A. Computer aided recognition of man-madestructures in Aerial photographs[C]. Naval PostgraduateSchool, Montery, USA, 1999.[6]贾承丽. SAR图像道路和机场提取方法研究[D]. [博士论文],长沙: 国防科学技术大学, 2006.Jia Cheng-li. The research of extraction of roads and airportfor SAR imagery[D]. [Ph.D.dissertation], Changsha: Nationaluniversity of defense technology, 2006.[7]Costa R C S and Mederios F N S. Linear features detection inSAR images for urban analysis[C]. XV Brazilian Symposiumon Computer Graphics and Image Processing, Brazil cefortaleza, 2002: 401.[8]Dai Yuanshun, Xie Min, and Wang Xiaolong. A heuristicalgorithm for reliability modeling and analysis of gridsystems[J]. IEEE Trans. on Systems, 2007, 37(3): 189-200.[9]王润生. 图像理解[M]. 长沙: 国防科技大学出版社, 1998:69-73.Wang Run-sheng. Computer Comprehension[M]. Changsha:National University of Defense Technology Press, 1998:69-73.[10]贾承丽, 赵凌君, 吴其昌, 匡纲要. 基于遗传算法的SAR图像道路网检测方法[J]. 计算机学报, 2007, 30(7): 1186-1194.Jia Cheng-li, Zhao Ling-jun, Wu Qi-chang, and KuangGang-yao. Automatic extraction of road network from SARimagery based on genetic algorithm[J]. Chinese Journal ofComputers, 2007, 30(7): 1186-1194.[11]贾承丽, 周晓光, 计科峰, 匡纲要. 复杂SAR场景中机场跑道的提取[J]. 信号处理, 2007, 23(3): 374-378.Jia Cheng-li, Zhou Xiao-guang, Ji Ke-feng, and KuangGang-yao. Extraction of runways in complex syntheticaperture radar images[J]. Signal Processing, 2007, 23(3):374-378.

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