DocumentCode :
143457
Title :
Ship detection by using the M-Chi and M-Delta decompositions
Author :
Junjun Yin ; Jian Yang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fYear :
2014
fDate :
13-18 July 2014
Firstpage :
2738
Lastpage :
2741
Abstract :
Ocean surveillance is an important application in synthetic aperture radar (SAR) imagery. Polarimetric SAR (Pol-SAR) provides the multi-channel scattering information and hence is very promising for earth observation. Recently, the dual polarimetric SAR especially the hybrid dual-pol mode (i.e., compact polarimetry) has been given a growing concern. It can provide wide imaging swath coverage with reduced system complexity and thus is of great potential for maritime surveillance applications. Compact decomposition methods have been widely evaluated and applied to the land cover applications. In this study, we investigate the performances of compact decompositions for ship detection. The surveillance scenario is focused on the coastal areas, where low wind regions (LWR) and small ships with low backscattered intensity often appear in Pol-SAR imagery. The compact m-δ and m-χ decompositions are included to show the importance of the contribution of total backscattered energy in ship detection. Results are demonstrated on two RADARSAT-2 acquisitions over Tianjin port and Dalian port, China.
Keywords :
backscatter; decomposition; electromagnetic wave scattering; marine radar; object detection; radar imaging; radar polarimetry; search radar; ships; synthetic aperture radar; China; Dalian port; LWR; Pol-SAR imagery; RADARSAT-2 acquisitions; Tianjin port; coastal areas; compact decomposition method performance; dual polarimetric synthetic aperture radar imagery; earth observation; hybrid dual-pol mode; imaging swath coverage; land cover applications; low backscattered intensity; low wind regions; m-chi decompositions; m-delta decompositions; maritime surveillance applications; multichannel scattering information; ocean surveillance; ship detection; system complexity reduction; total backscattered energy; Marine vehicles; Polarimetry; Remote sensing; Scattering; Surveillance; Synthetic aperture radar; Vectors; Compact polarimetry; m-δ decomposition; m-χ decomposition; ship detection;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
Type :
conf
DOI :
10.1109/IGARSS.2014.6947042
Filename :
6947042
Link To Document :
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