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Optics Letters

Optics Letters


  • Vol. 14, Iss. 20 — Oct. 15, 1989
  • pp: 1107–1109

Direct phase estimation from phase differences using fast elliptic partial differential equation solvers

Dennis C. Ghiglia and Louis A. Romero  »View Author Affiliations

Optics Letters, Vol. 14, Issue 20, pp. 1107-1109 (1989)

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Obtaining robust phase estimates from phase differences is a problem common to several areas of importance to the optics and signal-processing communities. Specific areas of application include speckle imaging and interferometry, adaptive optics, compensated imaging, and coherent imaging such as synthetic-aperture radar. We derive in a concise form the equations describing the phase-estimation problem, relate these equations to the general form of elliptic partial differential equations, and illustrate results of reconstructions on large M by N grids, using existing, published, and readily available FORTRAN subroutines.

© 1989 Optical Society of America

Original Manuscript: May 18, 1989
Manuscript Accepted: July 26, 1989
Published: October 15, 1989

Dennis C. Ghiglia and Louis A. Romero, "Direct phase estimation from phase differences using fast elliptic partial differential equation solvers," Opt. Lett. 14, 1107-1109 (1989)

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