Image Compression Using an Improved Optical Inner Product Processor

Takeshi HASHIMOTO; Ikutoshi FUKUSHIMA; Mitsuru NAMIKI; Kimiaki YAMAMOTO

doi:10.1007/s10043-998-0152-3

Takeshi HASHIMOTO, Ikutoshi FUKUSHIMA, Mitsuru NAMIKI, Kimiaki YAMAMOTO

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Keywords: optical analog processing, inner product processing, image encoding, imagecompression, vector quantization

JOURNAL FREE ACCESS

1998 Volume 5 Issue 3 Pages 152-157

DOI https://doi.org/10.1007/s10043-998-0152-3

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Abstract

We show a prototype of a coding system for image compression using vector quantization with an optical inner product processor, whose accuracy is improved by the applying data transformation method. We also present compression effects for gray-scaled images by this system. The system can compress 25656 bits image data within 1.2 seconds under 0.18 compression ratio with an adequate quality.

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