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Optics Letters

Optics Letters


  • Vol. 36, Iss. 11 — Jun. 1, 2011
  • pp: 2071–2073

Preconditioning for multidimensional TOMBO imaging

Ryoichi Horisaki and Jun Tanida  »View Author Affiliations

Optics Letters, Vol. 36, Issue 11, pp. 2071-2073 (2011)

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In this Letter, we propose a preconditioning method to improve the convergence speed of iterative reconstruction algorithms in a compact, multidimensional, compound-eye imaging system called the thin observation module by bound optics. The condition number of the system matrix is improved by using a preconditioner matrix. To calculate the preconditioner matrix, the system model is expressed in the frequency domain. The proposed method is simulated by using a compressive sensing algorithm called the two-step iterative shrinkage/thresholding algorithm. The results showed improved reconstruction fidelity with a certain number of iterations for high signal-to-noise ratio measurements.

© 2011 Optical Society of America

OCIS Codes
(100.3010) Image processing : Image reconstruction techniques
(110.1758) Imaging systems : Computational imaging

ToC Category:
Imaging Systems

Original Manuscript: February 8, 2011
Revised Manuscript: April 12, 2011
Manuscript Accepted: April 26, 2011
Published: May 27, 2011

Ryoichi Horisaki and Jun Tanida, "Preconditioning for multidimensional TOMBO imaging," Opt. Lett. 36, 2071-2073 (2011)

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