Paper
18 August 1998 Improving the processing speed of an LCD-panel-based correlator by using a multichannel correlation approach
Haisong Liu, Minxian Wu, Guofan Jin, Gang Cheng, Qingsheng He, Yingbai Yan
Author Affiliations +
Abstract
Liquid crystal devices (LCDs) have proven to have adequate characteristics for use as the spatial light modulators, which are the key devices in the real-time optical information processing systems. However, the effective update rate of the LCD is rather low due to the transient response of the liquid crystal molecules and it has restricted the processing speed of the optoelectronic processors. In this paper, we use a multi-channel correlation approach to improve the processing speed and get satisfactory experimental results. The speed has been improved from 6 to 12 images per second. By this approach, not only the processing speed can be improved, but also the display area of the LCD can be sufficiently exploited.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Haisong Liu, Minxian Wu, Guofan Jin, Gang Cheng, Qingsheng He, and Yingbai Yan "Improving the processing speed of an LCD-panel-based correlator by using a multichannel correlation approach", Proc. SPIE 3560, Display Devices and Systems II, (18 August 1998); https://doi.org/10.1117/12.319692
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KEYWORDS
LCDs

Optical correlators

CCD cameras

Frame grabbers

Light sources

Image processing

Liquid crystals

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