Complex spatial filtering for parallel recognition of color pattern using liquid crystal panels

Mitsugu Kakuta; Masahiro Yamaguchi; Nagaaki Ohyama

doi:10.1117/12.187287

29 September 1994 Complex spatial filtering for parallel recognition of color pattern using liquid crystal panels

Mitsugu Kakuta, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings Volume 2297, Photonics for Processors, Neural Networks, and Memories II; (1994) https://doi.org/10.1117/12.187287
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We present a technique for the optical implementation of a color image correlation using a liquid crystal spatial light modulator (LC-SLM). A color image composed of 3D vectors of RGB primaries, is mapped onto a 2D plane to extract chromatic information from the image. Then, the 2D vector image is defined as a complex function, which is displayed on the LC- SLM and employed in a complex correlation system. Results from computer simulation and an experiment are also demonstrated. Optical parallel recognition processor for color image recognition is realized by the coherent optical system of single wavelength.

Citation Download Citation

Mitsugu Kakuta, Masahiro Yamaguchi, and Nagaaki Ohyama "Complex spatial filtering for parallel recognition of color pattern using liquid crystal panels", Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); https://doi.org/10.1117/12.187287

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