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The combined use of the evidence theory and fuzzy logic for improving multimodal nondestructive testing systems

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4 Author(s)
Kaftandjian, V. ; Lab. for Nondestructive Testing by Ionizing Radiat.s, Nat. Inst. for Appl. Sci., Villeurbanne, France ; Yue Min Zhu ; Dupuis, O. ; Babot, D.

A data fusion approach for improving weld inspection by multimodal nondestructive testing (NDT) is investigated. The method relies on the combined use of evidence theory and fuzzy logic. In this framework, X-ray and ultrasonic inspection is modeled using fuzzy sets and mass function in evidence theory, and objects corresponding to X-ray and ultrasonic testing are fused at the level of features. The results show that the fusion improves significantly the reliability of defect detection and the defect sizing.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:54 ,  Issue: 5 )