The University of Southampton
×
Filter your search:
University of Southampton Institutional Repository

Contrast manipulation and controllable spatial filtering via photorefractive two-beam coupling

Contrast manipulation and controllable spatial filtering via photorefractive two-beam coupling
Contrast manipulation and controllable spatial filtering via photorefractive two-beam coupling
A scheme is presented that achieves passive controllable spatial filtering via two-beam coupling in BaTiO3, between a reference beam and the optical Fourier transform of an input image. The nature of the spatial filtering is determined by the intensity dependent gain seen by each component of the Fourier transform. By appropriate choice of intensity ratio, the operations of contrast enhancement, feature extraction, and defect enhancement are possible, and representative examples of these are given.
0030-4018
272-276
Khoury, J.A.
07e5a20e-fa57-42e9-aaf8-6d781f265a24
Hussain, G.
60f5b057-92d8-4506-a5f2-19eb167e4d8e
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Khoury, J.A.
07e5a20e-fa57-42e9-aaf8-6d781f265a24
Hussain, G.
60f5b057-92d8-4506-a5f2-19eb167e4d8e
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Khoury, J.A., Hussain, G. and Eason, R.W. (1989) Contrast manipulation and controllable spatial filtering via photorefractive two-beam coupling. Optics Communications, 70 (4), 272-276. (doi:10.1016/0030-4018(89)90318-0).

Record type: Article

Abstract

A scheme is presented that achieves passive controllable spatial filtering via two-beam coupling in BaTiO3, between a reference beam and the optical Fourier transform of an input image. The nature of the spatial filtering is determined by the intensity dependent gain seen by each component of the Fourier transform. By appropriate choice of intensity ratio, the operations of contrast enhancement, feature extraction, and defect enhancement are possible, and representative examples of these are given.

Text
159P.pdf - Other
Download (629kB)

More information

Published date: 15 March 1989
Learn more about Optoelectronics Research Centre research

Identifiers

Local EPrints ID: 77510
URI: http://eprints.soton.ac.uk/id/eprint/77510
DOI: doi:10.1016/0030-4018(89)90318-0
ISSN: 0030-4018
PURE UUID: 036408e0-370c-4adc-a85d-fdd14713b874
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:33

Export record

Altmetrics

Contributors

Author: J.A. Khoury
Author: G. Hussain
Author: R.W. Eason ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Library staff additional information
Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×