Mapping urban impervious surface with dual-polarimetric SAR data: An improved method

	Mapping urban impervious surface with dual-polarimetric SAR data: An improved method
	Zhang, Hongsheng 1,2; Lin, Hui 1,2,3; Li, Yu 1; Zhang, Yuanzhi4 ; Fang, Chaoyang 5
刊名	LANDSCAPE AND URBAN PLANNING
	2016-07-01
卷号	151 页码:55-63
关键词	Impervious surfaces PolSAR Optical and SAR data fusion Alpha-H decomposition
英文摘要	Synthetic aperture radar (SAR) data can provide complementary information to improve the mapping of urban impervious surfaces. However, most studies have focused on using only single polarization SAR data. This paper presents a comparative study on the combined use of multispectral optical data and dual polarization SAR data to identify urban impervious surfaces. The experimental results using SPOT 5, TerraSAR-X and ALOS PALSAR data were consistent compared with our previous results using single polarization SAR data. The two-fold result showed that polarimetric SAR images were generally superior to single polarization SAR data for extracting impervious surface areas, although not every individual polarimetric feature could provide a positive result for impervious surfaces mapping. Compared with using only optical and SAR data, the separate HH and HV polarization data improved the accuracy of the results. The incorporation of both Entropy and Alpha features also improved the accuracy. However, the HH/HV ratio and the separate use of coherence did not provide positive results. Noticeably, a combination of all of the dual-polarimetric SAR features was capable of obtaining the best accuracy, with an improvement of approximately 3.5% compared with that of only using SPOT-5 images. This result indicates the superiority of dual-polarimetric SAR data over single polarimetric SAR data for the mapping of urban impervious surfaces. (C) 2016 Elsevier B.V. All rights reserved.
收录类别	SCI ; SSCI
语种	英语
WOS记录号	WOS:000376811300006
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5345]
专题	国家天文台_月球与深空探测研究部
作者单位	1.Chinese Univ Hong Kong, Inst Space & Earth Informat Sci, Shatin, Hong Kong, Peoples R China 2.Chinese Univ Hong Kong, Shenzhen Res Inst, Shenzhen, Peoples R China 3.Chinese Univ Hong Kong, Dept Geog & Resource Management, Shatin, Hong Kong, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 5.Jiangxi Normal Univ, Minist Educ, Key Lab Poyang Lake Wetland & Watershed Res, Nanchang 330022, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hongsheng,Lin, Hui,Li, Yu,et al. Mapping urban impervious surface with dual-polarimetric SAR data: An improved method[J]. LANDSCAPE AND URBAN PLANNING,2016,151:55-63.
APA	Zhang, Hongsheng,Lin, Hui,Li, Yu,Zhang, Yuanzhi,&Fang, Chaoyang.(2016).Mapping urban impervious surface with dual-polarimetric SAR data: An improved method.LANDSCAPE AND URBAN PLANNING,151,55-63.
MLA	Zhang, Hongsheng,et al."Mapping urban impervious surface with dual-polarimetric SAR data: An improved method".LANDSCAPE AND URBAN PLANNING 151(2016):55-63.