Research Papers

Unsupervised polarimetric synthetic aperture radar classification of large-scale landslides caused by Wenchuan earthquake in hue-saturation-intensity color space

[+] Author Affiliations
Ning Li

Chinese Academy of Sciences, Institute of Electronics, Space Microwave Remote Sensing System Department, Beijing 100190, China

University of the Chinese Academy of Sciences, Beijing 100039, China

Robert Wang

Chinese Academy of Sciences, Institute of Electronics, Space Microwave Remote Sensing System Department, Beijing 100190, China

Yunkai Deng

Chinese Academy of Sciences, Institute of Electronics, Space Microwave Remote Sensing System Department, Beijing 100190, China

Yabo Liu

Chinese Academy of Sciences, Institute of Electronics, Space Microwave Remote Sensing System Department, Beijing 100190, China

Bochen Li, Chunle Wang

Chinese Academy of Sciences, Institute of Electronics, Space Microwave Remote Sensing System Department, Beijing 100190, China

Timo Balz

Wuhan University, State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan 430079, China

J. Appl. Remote Sens. 8(1), 083595 (Jul 07, 2014). doi:10.1117/1.JRS.8.083595
History: Received April 9, 2014; Revised June 7, 2014; Accepted June 11, 2014
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Abstract.  A simple and effective approach for unsupervised classification of large-scale landslides caused by the Wenchuan earthquake is developed. The data sets used were obtained by a high-resolution fully polarimetric airborne synthetic aperture radar system working at X-band. In the proposed approach, Pauli decomposition false-color RGB imagery is first transformed to the hue-saturation-intensity (HSI) color space. Then, a good combination of k-means clustering and HSI imagery in different channels is used stage-by-stage for automatic landslides extraction. Two typical case studies are presented to evaluate the feasibility of the proposed scheme. Our approach is an important contribution to the rapid assessment of landslide hazards.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Ning Li ; Robert Wang ; Yunkai Deng ; Yabo Liu ; Bochen Li, et al.
"Unsupervised polarimetric synthetic aperture radar classification of large-scale landslides caused by Wenchuan earthquake in hue-saturation-intensity color space", J. Appl. Remote Sens. 8(1), 083595 (Jul 07, 2014). ; http://dx.doi.org/10.1117/1.JRS.8.083595


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