Regular Articles

Image deblurring through static or time-varying random perturbation medium

[+] Author Affiliations
Eran Gur

Shenkar College of Engineering and Design, Faculty of Engineering, Ramat Gan, 52526, Israel

Zeev Zalevsky

Bar Ilan University, School of Engineering, Ramat Gan, 52900, Israel

J. Electron. Imaging. 18(3), 033016 (September 15, 2009). doi:10.1117/1.3224953
History: Received August 21, 2008; Revised July 04, 2009; Accepted July 27, 2009; Published September 15, 2009
Text Size: A A A

In a large plurality of applications, imaging quality is significantly reduced due to existence of static or time-varying random perturbation media. An example of such a medium can be a diffusive window through which we wish to image an object located behind, and not in proximity to, the window. Another example can be localized flow of turbulence (above hot surfaces such as black roads) or of aerosols distorting the imaging resolution of objects positioned behind the perturbation. We present a new deblurring approach for obtaining highly resolved imaging of objects positioned behind static or time-varying random perturbation media. The proposed approach for extraction of the high spatial frequencies is based on iterative computation similar to the well-known Gerchberg-Saxton algorithm for phase retrieval. By focusing our camera onto three planes positioned between the imaging camera and the perturbation, we are able to retrieve the phase distribution of those planes and then reconstruct the intensity of the object by numerical free space propagation of this extracted complex field to the estimated position of the object.

Figures in this Article
© 2009 SPIE and IS&T

Citation

Eran Gur and Zeev Zalevsky
"Image deblurring through static or time-varying random perturbation medium", J. Electron. Imaging. 18(3), 033016 (September 15, 2009). ; http://dx.doi.org/10.1117/1.3224953


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.