Shift- and rotational- invariant associative memory using BaTiO3

Hon-Fai Yau; Sha-Wei Wang; Hsiao-Yi Lee; Yuh-Ping Tong; OuYang Yueh; Chi Ching Chang

doi:10.1117/12.140455

2 March 1993 Shift- and rotational- invariant associative memory using BaTiO₃

Hon-Fai Yau, Sha-Wei Wang, Hsiao-Yi Lee, Yuh-Ping Tong, OuYang Yueh, Chi Ching Chang

Proceedings Volume 1732, Holographics International '92; (1993) https://doi.org/10.1117/12.140455
Event: Holographics International '92, 1992, London, United Kingdom

Abstract

A scheme capable of demonstrating shift- and rotational-invariant associative memory is presented. The scheme can be implemented both digitally and optically. In optical implementation, we use one holographic spatial frequency filter and one ordinary hologram of the reference pattern. A BaTiO₃ crystal is also employed in the experiment. In the digital implementation of the scheme, in addition to the rotational invariance it is shift invariant too. However, the optical implementation exhibits shift invariance only when the BaTiO₃ crystal is sufficiently large.

Citation Download Citation

Hon-Fai Yau, Sha-Wei Wang, Hsiao-Yi Lee, Yuh-Ping Tong, OuYang Yueh, and Chi Ching Chang "Shift- and rotational- invariant associative memory using BaTiO₃", Proc. SPIE 1732, Holographics International '92, (2 March 1993); https://doi.org/10.1117/12.140455

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Crystals

Ferroelectric materials

Holograms

Content addressable memory

Phase conjugation

Digital holography

Holography

Show All Keywords

Keywords/Phrases

Search In:

Publication Years