Improved performance of joint transform correlators in the presence of colored noise

Hanni Inbar

doi:10.1117/12.2308569

26 July 1993 Improved performance of joint transform correlators in the presence of colored noise

Hanni Inbar

Proceedings Volume 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology; 198346 (1993) https://doi.org/10.1117/12.2308569
Event: 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1993, Budapest, Hungary

Abstract

Joint transform correlator [1] (JTC), using spatial light modulators (SLMs) for the display of the input plane and the joint transform (JT) plane, provides real-time correlation capabilities for optical pattern recognition. Display of the JT plane on a binary SLM, requires binarization of the joint power spectrum function. Means for improving the JTC performance are presented, where the joint power spectrum function is modified prior to an error-diffusion binarization stage, when colored (non-white) noise is present in the input scene. Mathematical analysis, computer simulations and experimental results are presented.

Citation Download Citation

Hanni Inbar "Improved performance of joint transform correlators in the presence of colored noise", Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 198346 (26 July 1993); https://doi.org/10.1117/12.2308569

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