Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Multiple feature-enhanced synthetic aperture radar imaging

[+] Author Affiliations
Sadegh Samadi, Mohammad Ali Masnadi-Shirazi

Shiraz Univ. (Iran, Islamic Republic of)

Müjdat Çetin

Sabanci Univ. (Turkey)

Proc. SPIE 7337, Algorithms for Synthetic Aperture Radar Imagery XVI, 73370I (April 28, 2009); doi:10.1117/12.819883
Text Size: A A A
From Conference Volume 7337

  • Algorithms for Synthetic Aperture Radar Imagery XVI
  • Edmund G. Zelnio; Frederick D. Garber
  • Orlando, Florida, USA | April 13, 2009

abstract

Non-quadratic regularization based image formation is a recently proposed framework for feature-enhanced radar imaging. Specific image formation techniques in this framework have so far focused on enhancing one type of feature, such as strong point scatterers, or smooth regions. However, many scenes contain a number of such features. We develop an image formation technique that simultaneously enhances multiple types of features by posing the problem as one of sparse signal representation based on overcomplete dictionaries. Due to the complex-valued nature of the reflectivities in SAR, our new approach is designed to sparsely represent the magnitude of the complex-valued scattered field in terms of multiple features, which turns the image reconstruction problem into a joint optimization problem over the representation of the magnitude and the phase of the underlying field reflectivities. We formulate the mathematical framework needed for this method and propose an iterative solution for the corresponding joint optimization problem. We demonstrate the effectiveness of this approach on various SAR images.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Sadegh Samadi ; Müjdat Çetin and Mohammad Ali Masnadi-Shirazi
"Multiple feature-enhanced synthetic aperture radar imaging", Proc. SPIE 7337, Algorithms for Synthetic Aperture Radar Imagery XVI, 73370I (April 28, 2009); doi:10.1117/12.819883; http://dx.doi.org/10.1117/12.819883


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 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.