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

Optical image processing by matched amplification

Not Accessible

Your library or personal account may give you access

Abstract

An image-processing technique, which we call matched amplification, is proposed and demonstrated. Analogous to the well-known technique of matched filtering, matched amplification manipulates an input image at its Fourier plane by using a Fourier transform of a reference image. In matched amplification, however, the Fourier components of the input image that match those of the reference image are amplified rather than attenuated as in the case of matched filtering. Owing to this amplification process, matched amplification is advantageous for applications that require cascadability, high energy efficiency of the processed image, or large intensity dynamic range of the input image. We show experimental results using photorefractive two-beam coupling in BaTiO3 as the coherent amplification stage.

© 1992 Optical Society of America

Full Article  |  PDF Article
More Like This
Spatial amplification: an image-processing technique using the selective amplification of spatial frequencies

Tallis Y. Chang, John H. Hong, and Pochi Yeh
Opt. Lett. 15(13) 743-745 (1990)

Real-time image processing using selective erasure in photorefractive two-wave mixing

Joby Joseph, Kanwal Kamra, K. Singh, and P. K. C. Pillai
Appl. Opt. 31(23) 4769-4772 (1992)

Self-amplified optical pattern-recognition technique

Hua-Kuang Liu
Appl. Opt. 31(14) 2568-2575 (1992)

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 (4)

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

Select as filters


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