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Velocity filtering using complementary gratings in photorefractive BSO

Hussain, G. and Eason, R.W. (1991) Velocity filtering using complementary gratings in photorefractive BSO At EQEC '91: 3rd European Quantum Electronics Conference & 10th National Quantum Electronics Conference, United Kingdom. 27 - 30 Aug 1991.

Record type: Conference or Workshop Item (Paper)

Abstract

Motion detection, velocity filtering and the detection of change in a given scene are all important aspects for optical processing architectures and systems. So far several different techniques have been reported in the literature that use either all optical, or hybrid (optical plus electronic), schemes to implement novelty filter type operations. For essentially all-optical schemes the intrinsic advantages of parallel image subtraction arc clear. In this paper we report a different scheme for motion detection and velocity filtering which uses two spatially multiplexed gratings with a relative phase shift 130 degrees, (known as complementary gratings) in photorefractive BSO.

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More information

Published date: 1991
Venue - Dates: EQEC '91: 3rd European Quantum Electronics Conference & 10th National Quantum Electronics Conference, United Kingdom, 1991-08-27 - 1991-08-30
Organisations: Optoelectronics Research Centre, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 77438
URI: http://eprints.soton.ac.uk/id/eprint/77438
PURE UUID: 00721421-1a32-4a63-8f09-5403586e07c3
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:32

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