Built-up Area Detection from PolSAR Images Based on Nonstationarity and Polarization Coherency Coefficient Ratio
FAN Qinghui①② MU Jianjun① XIANG Deliang③ SONG Wenqing④
①(School of Computer Science and Technology, Xidian University, Xi’an 710071, China) ②(Information Engineering School, Henan University of Science and Technology, Luoyang 471023, China) ③(College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China) ④(National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China)
To improve the detection accuracy of urban built-up areas from Polarimetric Synthetic Aperture Radar (PolSAR) images, this paper proposes a new built-up area detection method based on nonstationarity and polarization coherency coefficient ratio. Firstly, the PolSAR image is filtered and decomposed into several sub-aperture images along the azimuth direction. Then nonstationarity detection and polarization coherency coefficient ratio are combined to determine the class label of pixels. On the basis of the traditional nonstationarity detection method, this paper introduces a new polarization coherency coefficient ratio to remove the false alarms of natural areas and to improve the overall detection accuracy. Experimental results using spaceborne and airborne PolSAR data demonstrate the effectiveness of the proposed method.
范庆辉,慕建君,项德良,宋文青. 基于非平稳性和极化相干系数比的PolSAR图像建筑物检测[J]. 电子与信息学报, 2016, 38(12): 3238-3244.
FAN Qinghui, MU Jianjun, XIANG Deliang, SONG Wenqing. Built-up Area Detection from PolSAR Images Based on Nonstationarity and Polarization Coherency Coefficient Ratio. JEIT, 2016, 38(12): 3238-3244.
LIU Yan, TAN Weixian, LIN Yun, et al. An approach of the outlines extraction of building footprints from the circular SAR data[J]. Journal of Electronics & Information Technology, 2015, 37(4): 946-952. doi: 10.11999/ JEIT140717.
[2]
WU Wenjun, GUO Huadong, and LI Xinwu. Man-made target detection in urban areas based on a new azimuth stationarity extraction method[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2013, 6(3): 1138-1146. doi: 10.1109/JSTARS.2013.2243700.
[3]
XIANG Deliang, TANG Tao, HU Canbin, et al. Built-up area extraction from PolSAR imagery with model-based decomposition and polarimetric coherence[J]. Remote Sensing, 2016, 8(8): 685. doi: 10.3390/rs8080685.
[4]
XIANG Deliang, TANG Tao, BAN Yifang, et al. Man-made target detection from polarimetric SAR data via nonstationarity and asymmetry[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 9(4): 1459-1469. doi: 10.1109/JSTARS.2016.2520518.
[5]
AZMEDROUB B, OUARZEDDINE M, and SOUISSI B. Extraction of urban areas from polarimetric SAR imagery[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 9(6): 1-9. doi: 10.1109/JSTARS.2016.2527242.
[6]
ZHAI Wei, SHEN Huanfeng, HUANG Chunlin, et al. Fusion of polarimetric and texture information for urban building extraction from fully polarimetric SAR imagery[J]. Remote Sensing Letters, 2016, 7(1): 31-40. doi: 10.1080/2150704X. 2015.1101179.
[7]
XIANG Deliang, BAN Yifang, and SU Yi. Model-based decomposition with cross scattering for polarimetric SAR urban areas[J]. IEEE Geoscience and Remote Sensing Letters, 2015, 12(12): 2496-2500. doi: 10.1109/LGRS.2015.2487450.
[8]
LEE K Y, OH Y, and KIM Y. Phase-difference of urban area in polarimetric SAR images[J]. Electronics Letters, 2012, 48(21): 1367-1368. doi: 10.1049/el.2012.1698.
[9]
KAJIMOTO M and SUSAKI J. Urban-area extraction from polarimetric SAR images using polarization orientation angle[J]. IEEE Geoscience and Remote Sensing Letters, 2013, 10(2): 337-341. doi: 10.1109/LGRS.2012.2207085.
[10]
FERRO-FAMIL L, REIGBER A, POTTIER E, et al. Scene characterization using subaperture polarimetric SAR data[J]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41(10): 2264-2276. doi:10.1109/TGRS.2003.817188.
[11]
AINSWORTH T L, SCHULER D L, and LEE J S. Polarimetric SAR characterization of man-made structures in urban areas using normalized circular-pol correlation coefficients[J]. Remote Sensing of Environment, 2008, 112(6): 2876-2885. doi: 10.1016/j.rse.2008.02.005.
[12]
XIAO Shunping, CHEN Siwei, CHANG Yuliang, et al. Polarimetric coherence optimization and its application for manmade target extraction in PolSAR data[J]. IEICE Transcations on Electronics, 2015, E97-C(6): 566-574. doi: 10.1587/transele.E97.C.566.
[13]
CAO Fang, HONG Wen, WU Yirong, et al. An unsupervised segmentation with an adaptive number of clusters using the SPAN/H//A space and the complex wishart clustering for fully polarimetric SAR data analysis[J]. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45(11): 3454-3467. doi: 10.1109/TGRS.2007.907601.
