Apparatus and method for the automated marking of defects on webs of material
First Claim
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1. A method of analyzing the characteristics of a web of material, comprising:
- imaging at least a portion of a web to provide digital information;
processing the digital information with an initial algorithm to identify regions on the web containing anomalies;
placing fiducial marks on the web;
recording positional information localizing the identified regions relative to the fiducial marks; and
applying locating marks to the web identifying the position of at least some of the anomalies, using the positional information and the fiducial marks as a guide.
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Abstract
A system for the characterization of webs that permits the identification of anomalous regions on the web to be performed at a first time and place, and permits the localization and marking of actual defects to be performed at a second time and place.
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Citations
21 Claims
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1. A method of analyzing the characteristics of a web of material, comprising:
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imaging at least a portion of a web to provide digital information;
processing the digital information with an initial algorithm to identify regions on the web containing anomalies;
placing fiducial marks on the web;
recording positional information localizing the identified regions relative to the fiducial marks; and
applying locating marks to the web identifying the position of at least some of the anomalies, using the positional information and the fiducial marks as a guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for marking a web of material, comprising:
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a fiducial marker for applying fiducial marks to the web;
an inspection module for imaging at least a potion of a web to provide digital information, processing the digital information with an initial algorithm to identify regions on the web containing anomalies, and recording positional information localizing the identified regions relative to the fiducial marks;
a fiducial reader for reading and providing localizing information from the fiducial marks, a web marker for applying locating marks to the web, and a web marker controller for controlling the web marker so as to apply locating marks to the web identifying the position of at least some of the anomalies, using the positional information and the localizing information as a guide. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A marking apparatus for marking a web of material having fiducial marks thereon, utilizing a digital map comprising positional information of web anomalies relative to the fiducial marks, the marking apparatus comprising:
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a fiducial reader for reading and providing localizing information from the fiducial marks, a web marker for applying locating marks to the web, and a web marker controller for controlling the web marker so as to apply locating marks to the web identifying the position of at least some of the anomalies, using the positional information and the localizing information as a guide. - View Dependent Claims (17)
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18. A method of marking a web of material having fiduciary marks and possibly web anomalies thereon, comprising:
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providing a digital map comprising positional information of the web anomalies relative to the fiducial marks, applying locating marks to the web identifying the position of at least some of the anomalies, using the positional information and the fiducial marks as a guide. - View Dependent Claims (19, 20, 21)
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Specification