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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 29, Iss. 8 — Aug. 1, 2012
  • pp: 1686–1693

Theoretical analysis for moiré effect of circular gratings for volume optical computerized tomography

Jia Wang, Yang Song, Zhen-hua Li, Nan Sun, and An-zhi He  »View Author Affiliations


JOSA A, Vol. 29, Issue 8, pp. 1686-1693 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001686


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Abstract

Obtaining the radial derivatives of wavefronts in projections is a critical step for volume optical computerized tomography. In this paper, the moiré effect of two identical circular gratings in acquiring the first-order radial derivative of a wavefront is analyzed. Based on scalar diffraction theory, the formation mechanism of circular gratings’ moiré fringes is derived. A more explicit analytical relation between moiré fringes of different diffraction orders and tested wavefront is obtained. The involved results will be useful for extracting the projection information that is used in three-dimensional reconstruction by volume OCT.

© 2012 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(110.6960) Imaging systems : Tomography
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques

ToC Category:
Imaging Systems

History
Original Manuscript: April 23, 2012
Revised Manuscript: June 4, 2012
Manuscript Accepted: June 4, 2012
Published: July 26, 2012

Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Jia Wang, Yang Song, Zhen-hua Li, Nan Sun, and An-zhi He, "Theoretical analysis for moiré effect of circular gratings for volume optical computerized tomography," J. Opt. Soc. Am. A 29, 1686-1693 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-8-1686


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