Paper
28 March 2005 Portable 512 x 512 grayscale optical correlator
Author Affiliations +
Abstract
JPL has developed a compact portable 512 x 512 Grayscale Optical Correlator [1-4] by integrating a pair of 512 x 512 Ferroelectric Spatial Light Modulator (FLCSLM), a red diode laser, Fourier optics, a CMOS photodetector array. The system is designed to operate at the maximum speed of 1000 frames per second. A FPGA card was custom programmed to perform peak-detection post-processing to accommodate the system throughput rate. Custom mechanical mounting brackets were designed miniaturized the optics head of the GOC into a 6” x 3.5” x 2” volume. The device driver HW/SW is installed in a customized PC. The GOC system’s portability has been demonstrated by shipping it to various locations for target recognition testing.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tien-Hsin Chao, Jay Hanan, Hanying Zhou, and George Reyes "Portable 512 x 512 grayscale optical correlator", Proc. SPIE 5816, Optical Pattern Recognition XVI, (28 March 2005); https://doi.org/10.1117/12.607965
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Cited by 1 scholarly publication.
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KEYWORDS
Spatial light modulators

Image filtering

Optical correlators

Optical filters

Photodetectors

Target recognition

Fourier transforms

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