Acousto-optic signal processing for real-time image recognition

Perry A. Molley; K. Terry Stalker

doi:10.1117/12.55692

1 September 1990 Acousto-optic signal processing for real-time image recognition

Perry A. Molley, K. Terry Stalker

Author Affiliations +

Optical Engineering, Vol. 29, Issue 9, (September 1990). https://doi.org/10.1117/12.55692

Abstract

The experimental results from an acousto-optic image correlator are presented. The performance ofthis system, which is evaluated in terms of the peak-to-sidelobe ratio, is shown to be improved by subtracting off the signal-dependent bias terms. These bias terms can be optically generated using the same acousto-optic correlator. Structured background features in the input scene can also dramatically affect the correlation result. This paper suggests a novel implementation of the difference-squared error algorithm using a modified acousto-optic architecture that can discriminate better than conventional correlation in scenes with structured background features. Experimental results from real-time systems constructed in the laboratory are presented.

Citation Download Citation

Perry A. Molley and K. Terry Stalker "Acousto-optic signal processing for real-time image recognition," Optical Engineering 29(9), (1 September 1990). https://doi.org/10.1117/12.55692

Published: 1 September 1990

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