Abstract
The quality of ultrasonic array imagery is adversely affected by uncompensated variations in the medium properties. A method for estimating the parameters of a general model of an inhomogeneous anisotropic medium is described. The model is comprised of a number of homogeneous sub-regions with unknown anisotropy. Bayesian estimation of the unknown model parameters is performed via a Monte-Carlo Markov chain using the Metropolis-Hastings algorithm. Results are demonstrated using simulated weld data.
Original language | English |
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Title of host publication | REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B |
Editors | DO Thompson, DE Chimenti |
Place of Publication | MELVILLE |
Publisher | American Institute of Physics (AIP) |
Pages | 604-611 |
Number of pages | 8 |
ISBN (Print) | 978-0-7354-0888-3 |
DOIs | |
Publication status | Published - 2011 |
Event | 37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010) - San Diego, CA, United States Duration: 18 Jul 2010 → 23 Jul 2010 Conference number: 37 |
Conference
Conference | 37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010) |
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Abbreviated title | QNDE 2010 |
Country/Territory | United States |
City | San Diego, CA |
Period | 18/07/10 → 23/07/10 |