Computer simulation results for a Hilbert transform optical correlator

Alastair D. McAulay

doi:10.1117/12.405861

2 November 2000 Computer simulation results for a Hilbert transform optical correlator

Alastair D. McAulay

Proceedings Volume 4113, Algorithms and Systems for Optical Information Processing IV; (2000) https://doi.org/10.1117/12.405861
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A previously proposed Hilbert transformoptical correlator modified th einut nd filtr images by adding an x-y mirror image t provide a real Fourie tnform. In an improved corrlator we cimpute the intnsity o the fourier trnsform so that filters are guarant4ed psoitiv end ral.The cente peak of the ouptu intnsity is shown to approximate the autoconvolutionof the convolution between the originalimags.The applcain of a Hilbert tranformallows only half of th eforuier plane to be used.This cn be used to speed the correltor by two or to perit an incrase in space-bandwidth product ofinput imgs by two. Result sof cmpute simulatin are shown.

Citation Download Citation

Alastair D. McAulay "Computer simulation results for a Hilbert transform optical correlator", Proc. SPIE 4113, Algorithms and Systems for Optical Information Processing IV, (2 November 2000); https://doi.org/10.1117/12.405861

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available