Trends for the solution of identification problems in holographic nondestructive testing (HNDT)

Wolfgang Osten; Frank Elandaloussi; Ulrike Mieth

doi:10.1117/12.484525

29 July 2002 Trends for the solution of identification problems in holographic nondestructive testing (HNDT)

Wolfgang Osten, Frank Elandaloussi, Ulrike Mieth

Proceedings Volume 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life; (2002) https://doi.org/10.1117/12.484525
Event: Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 2002, Novosibirsk, Russian Federation

Abstract

In this contribution we give a description of two modem approaches for the solution of identification problems in HNDT. One approach uses an acitive strategy for the classification of fault-indicating fringe patterns that can be described by the term "Recognition by Synthesis". The other approach is more passive but uses a high amount of a-priori knowledge about the appearance of material faults in fringe patterns. The derivation of this a-priori knowledge is supported by the mathematical modeling of the connection between the visible fault indicating pattern and its cause, the hidden material fault under the surface.

Citation Download Citation

Wolfgang Osten, Frank Elandaloussi, and Ulrike Mieth "Trends for the solution of identification problems in holographic nondestructive testing (HNDT)", Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); https://doi.org/10.1117/12.484525

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