Spill detection based on polarimetric SAR decomposition models

YANG Fan; YANG Jian; YIN junjun; SONG Jianshe

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (8) : 854-859.

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Spill detection based on polarimetric SAR decomposition models

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Abstract

Spill detection using polarimetric SAR is proposed by using Bragg scattering energy proportion based on the polarimetric decomposition model. The Bragg scattering energy proportion is small in a spill region but larger in sea clutter or an Oleyl alcohol (OLA) region. Thus, this feature can detect oil spills from sea clutter while excluding false OLA alarms. The feature can be easily extended to HH＼VV dual-polarimetric and compact polarimetric configurations which give wider radar coverage. Experiments with multi-look complex C band SAR data show that for all polarimetric modes, the feature gives state-of-art spill detection and false-alarm exclusion of spills.

Key words

synthetic aperture radar / spill detection / Oleyl alcohol (OLA) / Bragg scattering / Freeman decomposition / compact polarimetric / m-chi decomposition

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YANG Fan, YANG Jian, YIN junjun, SONG Jianshe. Spill detection based on polarimetric SAR decomposition models[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(8): 854-859

References

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