Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Practical aspects of image recovery by means of the bispectrum

Not Accessible

Your library or personal account may give you access

Abstract

The use of the bispectrum as a tool to handle the phase-retrieval problem associated with speckle interferometry is examined. The basic concepts and equations involved in bispectral imaging are discussed. Based in signal-to-noise ratio considerations, a simple recipe to predict the success of bispectral imaging is given. Because of their higher noise tolerance, two least-squares minimization schemes are used to reconstruct the object Fourier phase encrypted in the bispectral phase. The error-reduction algorithm for phase retrieval is applied in conjunction with the minimization procedures to overcome stagnation at local minima. Examples with simulated and real astronomical data are presented, including a comparison of the outcome of bispectral processing applied to both adaptively compensated and uncompensated data. The resulting diffraction-limited reconstructions are very similar.

© 1996 Optical Society of America

Full Article  |  PDF Article
More Like This
Object recovery from the bispectral phase in astronomical imaging

Pedro Negrete-Regagnon
J. Opt. Soc. Am. A 15(7) 1787-1796 (1998)

Comparison of shift-and-add and bispectrum image reconstruction methods for astronomy in the near infrared

V. A. Klückers, N. J. Wooder, J. C. Dainty, and A. J. Longmore
J. Opt. Soc. Am. A 13(7) 1577-1583 (1996)

Least-squares Fourier phase estimation from the modulo 2π bispectrum phase

Christopher A. Haniff
J. Opt. Soc. Am. A 8(1) 134-140 (1991)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (21)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (52)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved