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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 8 — Apr. 17, 2006
  • pp: 3193–3203

Enhancing diffraction-limited images using properties of the point spread function

Alex Small, Ilko Ilev, Victor Chernomordik, and Amir Gandjbakhche  »View Author Affiliations

Optics Express, Vol. 14, Issue 8, pp. 3193-3203 (2006)

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We propose an algorithm to enhance diffraction-limited images based on pixel-to-pixel correlations introduced by the finite width of the Point Spread Function (PSF). We simulate diffraction-limited images of point sources by convolving the PSF of a diffraction-limited lens with simulated images, and enhance the blurred images with our algorithm. Our algorithm reduces the PSF width, increases the contrast, and reveals structure on a length scale half of that resolvable in the unenhanced image. Our enhanced images compare favorably with images enhanced by conventional Tikhonov regularization.

© 2006 Optical Society of America

OCIS Codes
(100.2980) Image processing : Image enhancement
(110.0180) Imaging systems : Microscopy

ToC Category:
Image Processing

Original Manuscript: January 24, 2006
Revised Manuscript: March 30, 2006
Manuscript Accepted: April 4, 2006
Published: April 17, 2006

Alex Small, Ilko Ilev, Victor Chernomordik, and Amir Gandjbakhche, "Enhancing diffraction-limited images using properties of the point spread function," Opt. Express 14, 3193-3203 (2006)

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