Paper
11 November 1991 Holographic associative memory with bipolar features
Xu-Ming Wang, Guoguang Mu
Author Affiliations +
Abstract
An experimental approach to establish a single channel holographic associative memory with bipolar neural states and bipolar interconnections is presented. The optical implementation of bipolar interconnections is fulfilled by biasing the interconnection weights and dynamically thresholding the output estimate. To give the optical neurons bipolar features, a proper distributed offset is added to the output. A holographic associative memory was established. To record the memory hologram, a pair of transparencies are prepared for each of the stored patterns. Each transparency bears an additional transparent part whose aperture size is determined by the difference of transparent and opaque parts of the corresponding stored pattern. Numerical simulations show that its performance is in perfect coincidence with an ideal bipolar memory. Preliminary experimental results are also shown.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xu-Ming Wang and Guoguang Mu "Holographic associative memory with bipolar features", Proc. SPIE 1558, Wave Propagation and Scattering in Varied Media II, (11 November 1991); https://doi.org/10.1117/12.49658
Lens.org Logo
CITATIONS
Cited by 1 scholarly publication.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Holography

Content addressable memory

Neurons

Holograms

Computer simulations

Scattering

Wave propagation

RELATED CONTENT

Compact optical neuro-processors
Proceedings of SPIE (November 01 1991)
Holographic Associative Memories
Proceedings of SPIE (May 22 1990)
Real-Time Holographic Optical Storage
Proceedings of SPIE (May 19 1989)
Optical face recognition system (Invited Paper)
Proceedings of SPIE (October 30 1992)

Back to Top