Method and apparatus for recognizing particle impurities in text

Details Method and apparatus for recognizing particle impurities in text Method and apparatus for recognizing particle impurities in text

1990-08-17

1992-07-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250572, G01N 2188

Patent

active

051305593

ABSTRACT:
A method of recognizing particle impurities in textile material includes the following steps: forming a thin fiber web; detecting each particle impurity by an electron-optical sensor; applying signals from the sensor to an image processing system; determining a specific characteristic for each particle impurity by an evaluating device forming part of the image processing system; classifying the particle impurities based on the specific characteristic by comparison with reference data; and counting the particle impurities.

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Bermbach et al "Zeilensensor uberwacht Bewegte Objekte", Elektronik 24/Nov. 28, 1986, pp. 99-102.
Wulfhorst, et al "Erkennen von Storpartikeln im Vlies vom Baumwollfasern mit Hilfe der digitalen Bildverarbeitung", Melliand Textilberichte Dec. 1989, pp. 887-889.
Kaasjager "Kontrolle der Warenbahn mit elektronischer Bildanalyse", Melliand Textilberichte Jan. 1990, pp. 64-66.
Marguerre, "Neue optische Verfahren fur die automatisierte Sichtprufung", Messen Prufen Automatisieren, May 1998, pp. 274-278.

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