2 March 1993 Shift- and rotational- invariant associative memory using BaTiO3
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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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hon-Fai Yau, Sha-Wei Wang, Hsiao-Yi Lee, Yuh-Ping Tong, OuYang Yueh, Chi Ching Chang, "Shift- and rotational- invariant associative memory using BaTiO3", Proc. SPIE 1732, Holographics International '92, (2 March 1993); doi: 10.1117/12.140455; https://doi.org/10.1117/12.140455
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