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Unsupervised change detection of man-made objects using coherent and incoherent features of multi-temporal SAR images: 《Journal of Systems Engineering and Electronics》2022年第4期896-906,共11页FENG Hao WU Jianzhong ZHANG Lu LIAO Mingsheng; supported by the National Natural Science Foundation of China(41774006);the Comparative Study of Geo-environment and Geohazards in the Yangtze River Delta and the Red River Delta Project;the Shanghai Science and Technology Development Foundation(20dz1201200)。; Constrained by complex imaging mechanism and extraordinary visual appearance,change detection with synthetic aperture radar(SAR)images has been a difficult research topic,especially in urban areas.Although existing st...; 关键词：change detection multi-temporal synthetic aperture radar(SAR)data coherent and incoherent features CLUSTERING

Geometric active contour based approach for segmentation of high-resolution spaceborne SAR images被引量：2: 《Journal of Systems Engineering and Electronics》2015年第1期69-76,共8页Shaoming Zhang Fang He Yunling Zhang Jianmei Wang Xiao Mei Tiantian Feng; supported by the National Natural Science Foundation of China(41171327;41301361);the National Key Basic Research Program of China(973 Program)(2012CB719903);the Science and Technology Project of Ministry of Transport of People’s Republic of China(2012-364-X11-803);the Shanghai Municipal Natural Science Foundation(12ZR1433200); Segmentation is the key step in auto-interpretation of high-resolution spaceborne synthetic aperture radar（SAR） images. A novel method is proposed based on integrating the geometric active contour（GAC） and the sup...; 关键词：image segmentation synthetic aperture radar（SAR） imagery support vector machine（SVM） geometric active contour（GAC）

Azimuth resolution improvement for spaceborne SAR images with quasi-non-overlapped Doppler bandwidth: 《Journal of Systems Engineering and Electronics》2014年第3期422-427,共6页Yanyang Liu Zhenfang Li Zhiyong Suo Jinwei Li Zheng Bao; supported by the National Natural Science Foundationof China(41001282); The azimuth resolution improvement problem is solved via a coherent combination of synthetic aperture radar （SAR） ima-ges with the quasi-non-overlapped Doppler bandwidth. Prior to the spectra combination, SAR images...; 关键词：synthetic aperture radar （SAR） azimuth resolution improvement maximum sharpness optimization fringe simulation.

Region-based classification by combining MS segmentation and MRF for POLSAR images被引量：5: 《Journal of Systems Engineering and Electronics》2013年第3期400-409,共10页Bin Zhang Guorui Ma Zhi Zhang Qianqing Qin; supported by the National Natural Science Foundation of China(61001187;41001256;40971219);the National High Technology Research and Development Program of China(863 Program)(2013 AA122301); Speckle effects on classification results can be sup- pressed to some extent by introducing the contextual information. An unsupervised classification algorithm is proposed for polarimetric synthetic aperture radar （...; 关键词：polarimetric synthetic aperture radar （POLSAR） clas-sification maximum a posteriori （MAP） mean shift （MS） Markov random field （MRF）.

New CFAR target detector for SAR images based on kernel density estimation and mean square error distance被引量：4: 《Journal of Systems Engineering and Electronics》2012年第1期40-46,共7页Yi Cui Jian Yang Xinzheng Zhang; supported by the National Natural Science Foundation of China (40871157; 41171317);the Foundation of Advance Research of Science and Technology for Chinese National Defence(9140C620201902); A new constant false alarm rate （CFAR） target detector for synthetic aperture radar （SAR） images is developed. For each pixel under test, both the local probability density function （PDF） of the pixel and the cl...; 关键词：synthetic aperture radar （SAR） target detection con- stant false alarm rate （CFAR）.

Knowledge-based bridge detection from SAR images被引量：5: 《Journal of Systems Engineering and Electronics》2009年第5期929-936,共8页Wang Wenguang Sun Jinping Hu Rui Mao Shiyi; supported by the National Key Laboratory of ATR(9140C8002010706).; Automatic bridge detection is an important application of SAR images. Differed from the classical CFAR method, a new knowledge-based bridge detection approach is proposed. The method not only uses the backscattering i...; 关键词：KNOWLEDGE-BASED bridge detection SAR contextual information mathematical morphology.

SAR images classification method based on Dempster-Shafer theory and kernel estimate: 《Journal of Systems Engineering and Electronics》2007年第2期210-216,共7页He Chu Xia Guisong Sun Hong; the National Nature Science Foundation of China (60372057).; To study the scene classification in the Synthetic Aperture Radar （SAR） image, a novel method based on kernel estimate, with the Maxkov context and Dempster-Shafer evidence theory is proposed. Initially, a nonpaxame...; 关键词：Image classification Synthetic aperture Radar （SAR） Dempster-Shafer theory Kernel estimate.

Distribution-based CFAR detectors in SAR images被引量：2: 《Journal of Systems Engineering and Electronics》2006年第4期717-721,共5页Gan Rongbing Wang Jianguo; As traditional two-parameter constant false alarm rate （CFAR） target detec-tion algorithms in SAR images ignore target distribution, their performances are not the best or near best. As the resolution of SAR images ...; 关键词：synthetic aperture radar （SAR） target detection constant false alarm rate （CFAR） generalized likelihood ratio test （GLRT）.

New edge detection method for high-resolution SAR images被引量：3: 《Journal of Systems Engineering and Electronics》2006年第2期316-320,共5页Chang Yulin Zhou Zhimin Chang Wenge Jin Tian; A new edge detection method combining the scanning window central edge （SWCE） detector and an improved active contour model is proposed. The method first emploies the SWCE detector based on the difference of area pi...; 关键词：index terms -SAR edge detection SWCE active contour model.

An Algorithm for Ship Wake Detection from the SAR Images Using the Radon Transform and Morphological Image Processing被引量：2: 《Journal of Systems Engineering and Electronics》2001年第4期7-12,共6页金亚秋王世庆; This project was supported by the National Natural Science Foundation of China (No. 49831060).; Using the Radon transform and morphological image processing, an algorithm for ship's wake detection in the SAR (synthetic aperture radar) image is developed. Being manipulated in the Radon space to invert the gray-le...; 关键词：ALGORITHMS Image processing Mathematical transformations Radar clutter Radar target recognition Spurious signal noise Synthetic aperture radar

SAR_IMAGES