Color classification apparatus

Details Color classification apparatus Color classification apparatus

1994-10-12

1998-02-10

Trammell, James P.

Boots, shoes, and leggings

2505781, 356402, 356406, 356423, G01J 351

Patent

active

057176051

ABSTRACT:
The present invention provides a simple, low-cost color classification apparatus having a high resistance to mechanical vibrations and capable of properly performing color classification even if a light source is not specified and its spectrum changes. A color classification apparatus of the present invention is further including an image pickup means for picking up a spectrum of light reflected by a target object, a plurality of bandpass filters having different bands and arranged between the target object and the image pickup means, and a classifying means for calculating a classification spectrum for classification using a statistic technique from a spectrum of light reflected by the target object and picked up by the image pickup means, and classifying the target object using the classification spectrum.

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patent: 5221959 (1993-06-01), Ohyama et al.
patent: 5376962 (1994-12-01), Zortea
Article entitled "Optical Characteristics of Living Body", by N. Sato, printed in Medical Electronics and Biotechnology, vol. 24, No. 4., Aug., 1986, pp. 22-27 (In Japanese).
Article entitled "Spectral Diagnosis by Laser", by N. Sato et al, printed in Artificial Organ, vol. 16, No. 6, 1987, pp. 1806-1810 (in Japanese).
Article entitled "Image Classification by the Foley-Sammon Transform", by Q. Tian et al, printed in Optical Engineering, vol. 25, No. 7, Jul., 1986, pp. 834-840.
Article entitled "PDP Model-Recognition Science and Search for Neural Network", by D.E. Lamelheart, et al, translated by Shunichi Amari, Chapter 8, pp. 324 to 331, Sangyo Tosho Co., Ltd., Japan (1989), Japanese Text.

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