2010
DOI: 10.1111/j.1556-4029.2010.01424.x
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Validation of Tool Mark Comparisons Obtained Using a Quantitative, Comparative, Statistical Algorithm

Abstract: A statistical analysis and computational algorithm for comparing pairs of tool marks via profilometry data is described. Empirical validation of the method is established through experiments based on tool marks made at selected fixed angles from 50 sequentially manufactured screwdriver tips. Results obtained from three different comparison scenarios are presented and are in agreement with experiential knowledge possessed by practicing examiners. Further comparisons between scores produced by the algorithm and … Show more

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Cited by 53 publications
(154 citation statements)
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“…This criticism is somewhat exaggerated, as there have been many prior studies that bolster tool mark analysis theory (Chumbley et al, 2010).…”
Section: Motivationmentioning
confidence: 97%
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“…This criticism is somewhat exaggerated, as there have been many prior studies that bolster tool mark analysis theory (Chumbley et al, 2010).…”
Section: Motivationmentioning
confidence: 97%
“…Chumbley et al (2010) extended the work in Faden et al (2007) by using an improved statistical algorithm and an extended data set of 50 tools, four replicate marks at each angle, and 10 profilometer traces per mark. The statistical algorithm used in Chumbley et al (2010) was the same one used to make the comparisons in this thesis. For this reason, a brief summary of its operation will be provided here.…”
Section: State-of-the-art In Automated Comparisonsmentioning
confidence: 99%
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