Model-Based Flaw Reconstruction and Flaw Parameter Estimation Using a Limited Set of Radiographic Projections

dc.contributor.author Wallingford, Richard
dc.contributor.author Basart, John
dc.date 2018-02-14T03:31:28.000
dc.date.accessioned 2020-06-30T06:37:45Z
dc.date.available 2020-06-30T06:37:45Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 1990
dc.date.issued 1990
dc.description.abstract <p>This paper presents an approach to the reconstruction and parameter estimation of flaw models in NDE radiography. The reconstruction of flaw models rather than the flaw distribution itself reduces the required number of projections as well as the complexity of the measurement system [1,2]. In this approach, crack-like flaws are modeled as piecewise linear curves, and volumetric flaws are modeled as ellipsoids. Our emphasis here is on a method for estimating the model parameters for crack-like flaws using a linear model with more than the minimal number of required projections. Extra projections reduce the effects of measurement errors and film noise. We also present the development of the volumetric flaw model and outline a method for its inversion.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1990/allcontent/93/
dc.identifier.articleid 1567
dc.identifier.contextkey 5777088
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1990/allcontent/93
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59737
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1990/allcontent/93/1990_WallingfordRM_ModelBasedFlaw.pdf|||Sat Jan 15 02:30:59 UTC 2022
dc.source.uri 10.1007/978-1-4684-5772-8_93
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.disciplines Signal Processing
dc.subject.keywords CNDE
dc.title Model-Based Flaw Reconstruction and Flaw Parameter Estimation Using a Limited Set of Radiographic Projections
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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