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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 6 — Mar. 14, 2011
  • pp: 5480–5488

Achieving sub-Rayleigh resolution via thresholding

Sara Mouradian, Franco N. C. Wong, and Jeffrey H. Shapiro  »View Author Affiliations


Optics Express, Vol. 19, Issue 6, pp. 5480-5488 (2011)
http://dx.doi.org/10.1364/OE.19.005480


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Abstract

Diffraction from a finite-diameter entrance pupil imposes the Rayleigh bound on the spatial resolution achievable by a conventional imaging system. We demonstrate resolution beyond this limit through unstructured scanning of a focused laser beam across an object together with dynamic application of a threshold N less than the maximum count level Nmax. Experimental results show sub-Rayleigh resolution enhancement by a factor of [ln(Nmax/N)]1/2.

© 2011 Optical Society of America

OCIS Codes
(100.2980) Image processing : Image enhancement
(100.6640) Image processing : Superresolution

ToC Category:
Photonic Crystals

History
Original Manuscript: December 20, 2010
Revised Manuscript: February 23, 2011
Manuscript Accepted: February 27, 2011
Published: March 8, 2011

Citation
Sara Mouradian, Franco N. C. Wong, and Jeffery H. Shapiro, "Achieving sub-Rayleigh resolution via thresholding," Opt. Express 19, 5480-5488 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-6-5480


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