Paper
21 August 1987 Liquid Crystal Television For Optical Correlation
Wen-Sheng Perng, Yih-Shyang Cheng, Ming-Wen Chang
Author Affiliations +
Proceedings Volume 0754, Optical and Digital Pattern Recognition; (1987) https://doi.org/10.1117/12.939966
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States
Abstract
In this paper, we present a newly developed hybrid multi-channel real-time pattern recognition system. Two modified commercial liquid crystal televisions are applied as a real-time incoherent to coherent image transducer and a device to produce converging wavelets with different focal positions. Taking advantages of the cross-grating nature of the LCTV screen, a multi-channel correlator becomes possible. This hybrid system has both the high processing speed of an optical system and the flexibility of an electronic system.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wen-Sheng Perng, Yih-Shyang Cheng, and Ming-Wen Chang "Liquid Crystal Television For Optical Correlation", Proc. SPIE 0754, Optical and Digital Pattern Recognition, (21 August 1987); https://doi.org/10.1117/12.939966
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KEYWORDS
Spatial light modulators

Liquid crystals

Optical correlators

Televisions

Wavelets

Pattern recognition

Spatial frequencies

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