Improving Ship Detection with Polarimetric SAR based on Convolution between Co-polarization Channels


Autoria(s): Li, Haiyan; He, Yijun; Wang, Wenguang
Data(s)

01/02/2009

Resumo

The convolution between co-polarization amplitude only data is studied to improve ship detection performance. The different statistical behaviors of ships and surrounding ocean are characterized a by two-dimensional convolution function (2D-CF) between different polarization channels. The convolution value of the ocean decreases relative to initial data, while that of ships increases. Therefore the contrast of ships to ocean is increased. The opposite variation trend of ocean and ships can distinguish the high intensity ocean clutter from ships' signatures. The new criterion can generally avoid mistaken detection by a constant false alarm rate detector. Our new ship detector is compared with other polarimetric approaches, and the results confirm the robustness of the proposed method.

The convolution between co-polarization amplitude only data is studied to improve ship detection performance. The different statistical behaviors of ships and surrounding ocean are characterized a by two-dimensional convolution function (2D-CF) between different polarization channels. The convolution value of the ocean decreases relative to initial data, while that of ships increases. Therefore the contrast of ships to ocean is increased. The opposite variation trend of ocean and ships can distinguish the high intensity ocean clutter from ships' signatures. The new criterion can generally avoid mistaken detection by a constant false alarm rate detector. Our new ship detector is compared with other polarimetric approaches, and the results confirm the robustness of the proposed method.

Identificador

http://ir.qdio.ac.cn/handle/337002/1634

http://www.irgrid.ac.cn/handle/1471x/166033

Idioma(s)

英语

Fonte

Li, Haiyan; He, Yijun; Wang, Wenguang.Improving Ship Detection with Polarimetric SAR based on Convolution between Co-polarization Channels,SENSORS,2009,9(2):1221-1236

Palavras-Chave #Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation #polarimetric SAR #co-polarization #ship detection #convolution
Tipo

期刊论文