Method for sensing a marking on a running web of material

The method involves optically scanning a web of material (3) e.g. textile by at least one image recording device (6) e.g. charged coupled device (CCD) camera, in successive measuring cycles and outputs image signals for input to an image processing device (7) for determining the position of marking...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WITTMANN ANDREA,EISEN JUERGEN,ZEH MARTIN,SCHILD DOMINIK,SANDER PETER
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TESTING
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Beschreibung
Zusammenfassung:	The method involves optically scanning a web of material (3) e.g. textile by at least one image recording device (6) e.g. charged coupled device (CCD) camera, in successive measuring cycles and outputs image signals for input to an image processing device (7) for determining the position of marking (2). The image processing device generates a validity signal, which indicates whether the determined positional value is valid, by applying a position-dependent weighting function to the obtained positional values.