Image analysis – Image compression or coding
Patent
1993-05-25
1996-07-16
Couso, Jose L.
Image analysis
Image compression or coding
382212, 382 56, 382 32, G06K 900, G06K 936
Patent
active
055374921
ABSTRACT:
Total image processing by way of high-speed parallel optical operations. A multiplication device memorizes a series of optical density figures representing a series of orthogonal function patterns and performs optical multiplications upon an original picture in comparison with each of the orthogonal function patterns. A summation device determines the expansion coefficients of the orthogonal functions for the whole original picture from the operation results obtained by the multiplication device. A quantizing and encoding device quantizes and encodes the orthogonal function expanding coefficients obtained by the summation device for compressing the data. The encoded data is transmitted to a picture restoring section which has the same optical system as the picture compressing section. This enables the system to conduct two-way picture encoding and restoring.
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Chiba Shigeru
Nakajima Takayuki
Sato Shun'ichi
Suwa Akio
Couso Jose L.
Sharp Kabushiki Kaisha
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