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In the printing industry, multispectral line scan cameras are being applied with increasing frequency in print inspection. This field of application requires highly accurate camera systems. In this article, we describe a novel approach to determining the accuracy of multispectral measurements recorded by line scan cameras. The approach is based on Bayesian statistics and paves the way for inline applications...
The starting point for an automatic character recognition system (OCR, ICR) as well as for an automatic document analysis system is an optimized image processing system which performs an image separation into useful and useless information. A two-dimensional colour segmentation method is presented, which is based on a colour and structure based analysis of the pixels to provide a separation of the...
Die mehrkanalige bzw. multispektrale Bildgewinnung gewinnt zunehmend ein größeres Interesse — vor allem in Bezug auf die spektrale Repräsentation der zu erfassenden Objekte. Die Kenntnis der spektralen Eigenschaften ermöglicht eine differenzierte farborientierte Verarbeitung der erzeugten Bilder. Neben der spektralen Erfassung von Vorlagen, die heute durch den Einsatz mehrkanaliger Kamerasysteme erfolgt...
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