Remote Sensing Applications and Decision Support

Ship detection method for single-polarization synthetic aperture radar imagery based on target enhancement and nonparametric clutter estimation

[+] Author Affiliations
Sirui Tian

Nanjing University of Science & Technology, School of Electronic and Optical Engineering, Department of Electronic Engineering, Nanjing 210094, China

Chao Wang, Hong Zhang

Chinese Academy of Sciences, Institute of Remote Sensing and Digital Earth, Beijing 100094, China

J. Appl. Remote Sens. 9(1), 096073 (Mar 17, 2015). doi:10.1117/1.JRS.9.096073
History: Received November 9, 2014; Accepted February 26, 2015
Text Size: A A A

Abstract.  Ship detection with synthetic aperture radar (SAR) imagery often confronts severe speckle, heterogeneous regions, and system noise which cause false alarms due to the faint ship-sea contrast. Additionally, false negatives also occur when small vessels with low radar backscatter are observed. To solve these problems, a new ship detection method based on target enhancement and nonparametric clutter estimation is proposed. The method not only improves the ship-sea contrast for homogeneous and nonhomogeneous images but also adaptively estimates the clutter distribution in the enhanced image, which is crucial for the constant false-alarm rate (CFAR) detector. Subsequently, ships in the SAR image are detected by the proposed two-stage kernel density estimation CFAR (KDE-CFAR) with a low false-alarm rate and high detection probability. Compared with most existing algorithms, the proposed method provides a robust detection capability for both homogeneous and nonhomogeneous SAR images. Experimental results also reveal that the proposed method is an effective method for ship detection in various Radarsat-1 and Envisat ASAR images acquired with different operation modes.

© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Sirui Tian ; Chao Wang and Hong Zhang
"Ship detection method for single-polarization synthetic aperture radar imagery based on target enhancement and nonparametric clutter estimation", J. Appl. Remote Sens. 9(1), 096073 (Mar 17, 2015). ; http://dx.doi.org/10.1117/1.JRS.9.096073


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.