Knowledge-assisted evaluation of fringe patterns for automatic fault detection

Wolfgang Osten; Werner P. O. Jueptner; Ulrike Mieth

doi:10.1117/12.172599

1 March 1994 Knowledge-assisted evaluation of fringe patterns for automatic fault detection

Wolfgang Osten, Werner P. O. Jueptner, Ulrike Mieth

Proceedings Volume 2004, Interferometry VI: Applications; (1994) https://doi.org/10.1117/12.172599
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

Automatic pattern recognition methods combined with a knowledge based approach are used for the detection and classification of fault indicating patterns. For this purpose the complex fringe pattern is reduced to a line pattern (fringe skeleton) and this line pattern is approximated by vectors. The new pattern representation is transformed in a data list preserving the topology and metrics of the original pattern. Based on characteristic symptoms within the pattern features for the description of different pattern classes are derived. The knowledge for the hierarchical classification procedure embedded in decision rules for the knowledge assisted system was derived from model based simulation of fringe patterns and preparation of test objects with different flaws.

Citation Download Citation

Wolfgang Osten, Werner P. O. Jueptner, and Ulrike Mieth "Knowledge-assisted evaluation of fringe patterns for automatic fault detection", Proc. SPIE 2004, Interferometry VI: Applications, (1 March 1994); https://doi.org/10.1117/12.172599

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