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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

  • Vol. 13, Iss. 8 — Aug. 1, 1996
  • pp: 1670–1682

Phase retrieval with the transport-of-intensity equation. II. Orthogonal series solution for nonuniform illumination

T. E. Gureyev and K. A. Nugent  »View Author Affiliations


JOSA A, Vol. 13, Issue 8, pp. 1670-1682 (1996)
http://dx.doi.org/10.1364/JOSAA.13.001670


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Abstract

In a previous paper [ J. Opt. Soc. Am. A 12, 1932 ( 1995)] we presented a method for phase recovery with the transport-of-intensity equation by use of a series expansion. Here we develop a different method for the solution of this equation, which allows recovery of the phase in the case of nonuniform illumination. Though also based on the orthogonal series expansion, the new method does not require any separate boundary conditions and can be more easily adjusted for apertures of various shapes. The discussion is primarily for the case of a circular aperture and Zernike polynomials, but we also outline the solution for a rectangular aperture and Fourier harmonics. The latter example may have some substantial advantages, given the availability of the fast Fourier transform.

© 1996 Optical Society of America

History
Original Manuscript: June 21, 1995
Revised Manuscript: November 28, 1995
Manuscript Accepted: February 7, 1996
Published: August 1, 1996

Citation
T. E. Gureyev and K. A. Nugent, "Phase retrieval with the transport-of-intensity equation. II. Orthogonal series solution for nonuniform illumination," J. Opt. Soc. Am. A 13, 1670-1682 (1996)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-13-8-1670

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