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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 10 — May. 15, 2006
  • pp: 1394–1396

Radial Hilbert transform with Laguerre–Gaussian spatial filters

Cheng-Shan Guo, Yu-Jing Han, Jian-Bo Xu, and Jianping Ding  »View Author Affiliations


Optics Letters, Vol. 31, Issue 10, pp. 1394-1396 (2006)
http://dx.doi.org/10.1364/OL.31.001394


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Abstract

We analyze the point spread function (PSF) of the image processing system for radial Hilbert transform and propose a novel spiral phase filter, called the Laguerre–Gaussian spatial filter (LGSF). Theoretical analysis and real experiments show that the LGSF possesses some advantages in comparison with the conventional spiral phase plate (SPP). For example, the PSF of the imaging system with a LGSF presents smaller suboscillations than that with the conventional SPP, which allows us to realize a radial Hilbert transform for achieving a high contrast edge enhancement with high resolution.

© 2006 Optical Society of America

OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(090.1970) Holography : Diffractive optics
(100.0100) Image processing : Image processing
(100.2980) Image processing : Image enhancement

ToC Category:
Fourier Optics and Optical Signal Processing

History
Original Manuscript: February 21, 2006
Manuscript Accepted: February 24, 2006

Citation
Cheng-Shan Guo, Yu-Jing Han, Jian-Bo Xu, and Jianping Ding, "Radial Hilbert transform with Laguerre-Gaussian spatial filters," Opt. Lett. 31, 1394-1396 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-10-1394

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