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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 13 — Jun. 20, 2011
  • pp: 12540–12550

Preconditioning for multiplexed imaging with spatially coded PSFs

Ryoichi Horisaki and Jun Tanida  »View Author Affiliations

Optics Express, Vol. 19, Issue 13, pp. 12540-12550 (2011)

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We propose a preconditioning method to improve the convergence of iterative reconstruction algorithms in multiplexed imaging based on convolution-based compressive sensing with spatially coded point spread functions (PSFs). The system matrix is converted to improve the condition number with a preconditioner matrix. The preconditioner matrix is calculated by Tikhonov regularization in the frequency domain. The method was demonstrated with simulations and an experiment involving a range detection system with a grating based on the multiplexed imaging framework. The results of the demonstrations showed improved reconstruction fidelity by using the proposed preconditioning method.

© 2011 OSA

OCIS Codes
(110.1758) Imaging systems : Computational imaging
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:
Imaging Systems

Original Manuscript: April 7, 2011
Revised Manuscript: June 1, 2011
Manuscript Accepted: June 2, 2011
Published: June 14, 2011

Ryoichi Horisaki and Jun Tanida, "Preconditioning for multiplexed imaging with spatially coded PSFs," Opt. Express 19, 12540-12550 (2011)

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