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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 25 — Sep. 1, 2012
  • pp: 6031–6037

Improved resolution three-dimensional integral imaging using optimized irregular lens-array structure

Zahra Kavehvash, Khashayar Mehrany, and Saeed Bagheri  »View Author Affiliations


Applied Optics, Vol. 51, Issue 25, pp. 6031-6037 (2012)
http://dx.doi.org/10.1364/AO.51.006031


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Abstract

A rigorous approach is proposed to improve the resolution of integral imaging (InI) by finding the appropriate form of irregularity in the arrangement of the InI lenslets. The improvement of the resolution is achieved through redistribution of the sampling points in a uniform manner. The optimization process for finding the optimum pattern of the lens-array irregularity is carried out by minimizing a cost function, whose mathematical closed-form expression is provided. The minimization of the proposed cost function ensures the uniform distribution of sampling points and thus improves the resolution within the desired depth of field (DOF) and field of view (FOV). A set of standard resolution charts is used to demonstrate the improvement of the quality of the three-dimensional (3D) images obtained by using the optimized irregular lens array. It is shown that the overall level of the lateral and depth resolutions is improved at the same time.

© 2012 Optical Society of America

OCIS Codes
(110.3000) Imaging systems : Image quality assessment
(110.6880) Imaging systems : Three-dimensional image acquisition

ToC Category:
Imaging Systems

History
Original Manuscript: May 29, 2012
Revised Manuscript: July 26, 2012
Manuscript Accepted: July 26, 2012
Published: August 24, 2012

Citation
Zahra Kavehvash, Khashayar Mehrany, and Saeed Bagheri, "Improved resolution three-dimensional integral imaging using optimized irregular lens-array structure," Appl. Opt. 51, 6031-6037 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-25-6031

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