Programmable Optical Processor For Associative Retrieval

Bahram Javidi; Souheil Odeh

doi:10.1117/12.948558

16 December 1989 Programmable Optical Processor For Associative Retrieval

Bahram Javidi, Souheil Odeh

Proceedings Volume 0977, Real-Time Signal Processing XI; (1989) https://doi.org/10.1117/12.948558
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

A programmable optical associative memory for two-dimensional image retrieval is described. Both the stored image and the input image are displayed spatially; therefore, they can be updated in real time more conveniently. The integral product between the input image and the stored images is obtained by nonlinear correlation technique which has a superior performance compared with the conventional optical correlation techniques in the areas of the light efficiency and the correlation signal quality. Thus, better quality images can be reconstructed and the need for optical gain and the optical feedback may be eliminated. There are small losses in the system since no halograms are employed.

Citation Download Citation

Bahram Javidi and Souheil Odeh "Programmable Optical Processor For Associative Retrieval", Proc. SPIE 0977, Real-Time Signal Processing XI, (16 December 1989); https://doi.org/10.1117/12.948558

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