Journals and Proceedings ? Brought to you by The Optical Society

Applied Optics

Applied Optics

  • Editor: James C. Wyant
  • Vol. 46, Iss. 8 — Mar. 10, 2007
  • pp: 1211–1222

Optics InfoBase > Applied Optics > Volume 46 > Issue 8 > Page 1211

Multiframe superresolution of binary images

Premchandra M. Shankar and Mark A. Neifeld

Applied Optics, Vol. 46, Issue 8, pp. 1211-1222        doi:10.1364/AO.46.001211

» View Full Text: Acrobat PDF (791 KB)

  • OCIS Codes:
  • (100.3010) Image processing : Image reconstruction techniques
  • (100.3020) Image processing : Image reconstruction-restoration
  • (100.6640) Image processing : Superresolution

Citation
Premchandra M. Shankar and Mark A. Neifeld, "Multiframe superresolution of binary images," Appl. Opt. 46, 1211-1222 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-8-1211

Click for help

Abstract

We describe a new algorithm for superresolving a binary object from multiple undersampled low-resolution (LR) images that are degraded by diffraction-limited optical blur, detector blur, and additive white Gaussian noise. Two-dimensional distributed data detection (2D4) is an iterative algorithm that employs a message-passing technique for estimating the object pixel likelihoods. We present a novel non-training-based complexity-reduction technique that makes the algorithm suitable even for channels with support size as large as 5×5 object pixels. We compare the performance and computational complexity of 2D4 with that of iterative backprojection (IBP). In an imaging system with an optical blur spot matched to the object pixel size, 2×2 undersampled measurement pixels, and four LR images, the reconstruction error measured in terms of the number of pixel mismatches for 2D4 is 300 times smaller than that for IBP at a signal-to-noise ratio of 38 dB.

© 2007 Optical Society of America

» View Full Text: Acrobat PDF (791 KB)

History
Original Manuscript: June 30, 2006
Manuscript Accepted: September 24, 2006
Published: February 20, 2007

References

Please [login to View References]

Author Affiliations

Premchandra M. Shankar, Mark A. Neifeld

University of Arizona

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Click for help

 

OSA is a member of CrossRef.

CrossCheck Deposited



Advanced Search

Recent ToC Categories (Beta)

Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

More News