Abstract

A four-step phase-restoration procedure that provides faithful reconstructions of images consisting of faint detail superimposed upon bright, broad backgrounds is presented. Such images tend to cause existing phase-retrieval algorithms considerable difficulty. The two middle steps consist of the simplest of our recently reported phaserestoration schemes and of Fienup’s algorithm. The first and crucial step is to subtract a fraction of the central lobe of the given intensity of the Fourier transform of the image. The image is then reconstructed in two parts, which are combined in the final step. Encouraging computational results are presented.

© 1983 Optical Society of America

Full Article  |  PDF Article
Related Articles
Toward reconstructing phases of inverse-scattering signals

R. H. T. Bates and D. G. H. Tan
J. Opt. Soc. Am. A 2(11) 2013-2018 (1985)

Image preprocessing for improving computational efficiency in implementation of restoration and superresolution algorithms

Malur K. Sundareshan, Supratik Bhattacharjee, Radhika Inampudi, and Ho-Yuen Pang
Appl. Opt. 41(35) 7464-7474 (2002)

Mathematical extrapolation of image spectrum for constraint-set design and set-theoretic superresolution

Supratik Bhattacharjee and Malur K. Sundareshan
J. Opt. Soc. Am. A 20(8) 1516-1527 (2003)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (8)

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

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

Equations (17)

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

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