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Two Applications of Independent Component Analysis for Non-destructive Evaluation by Ultrasounds.

Authors :
Rosca, Justinian
Erdogmus, Deniz
Príncipe, José C.
Haykin, Simon
Salazar, Addisson
Gosálbez, Jorge
Igual, Jorge
Llinares, Raul
Vergara, Luis
Source :
Independent Component Analysis & Blind Signal Separation; 2006, p406-413, 8p
Publication Year :
2006

Abstract

This paper presents two novel applications of ICA in Non Destructive Evaluation by ultrasounds applied to diagnosis of the material consolidation status and to determination of the thickness material profiles in restoration of historical buildings. In those applications the injected ultrasonic pulse is buried in backscattering grain noise plus sinusoidal phenomena; this latter is analyzed by ICA. The mixture matrix is used to extract useful information concerning to resonance phenomenon of multiple reflections of the ultrasonic pulse at non consolidated zones and to improve the signals by detecting interferences in ultrasonic signals. Results are shown by real experiments at a wall of a Basilica's restored cupola. ICA is used as pre-processor to obtain enhanced power signal B-Scans of the wall. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISBNs :
9783540326304
Database :
Supplemental Index
Journal :
Independent Component Analysis & Blind Signal Separation
Publication Type :
Book
Accession number :
32703247
Full Text :
https://doi.org/10.1007/11679363_51