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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 15 — May. 20, 2006
  • pp: 3620–3628

Noise-resolution trade-off in projection algorithms for laser diffraction particle sizing

Francisco Pedocchi and Marcelo H. García  »View Author Affiliations


Applied Optics, Vol. 45, Issue 15, pp. 3620-3628 (2006)
http://dx.doi.org/10.1364/AO.45.003620


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Abstract

The size distribution of a particle suspension can be inferred from studying the diffracted light pattern produced by a laser beam that passes through the suspension. This involves solving an ill-posed linear system. Two previous versions of projection algorithms were tested by use of computer simulations and experiments. Both algorithms showed limitations in restoring the size distribution, because of either the shape of the size distribution or the presence of noise in the scattered light signal. The generalized projection algorithm presented in this work solves these difficulties by introducing a parameter that allows the user to adjust the noise-resolution trade-off, making it suitable for the analysis of natural suspensions.

© 2006 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(100.3190) Image processing : Inverse problems
(290.5850) Scattering : Scattering, particles
(350.4990) Other areas of optics : Particles

ToC Category:
Scattering

History
Original Manuscript: June 15, 2005
Revised Manuscript: September 21, 2005
Manuscript Accepted: December 11, 2005

Citation
Francisco Pedocchi and Marcelo H. García, "Noise-resolution trade-off in projection algorithms for laser diffraction particle sizing," Appl. Opt. 45, 3620-3628 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-15-3620


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