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Master Thesis

Évaluation de deux méthodes pour analyser les impacts laissés par un objet contondant au niveau du crâne : scanner surfacique et photogrammétrie

Abstract : In forensic odontology, sometimes we have to answer the question to confirm or invalidate a match between a mark on a skull area and the shape of a blunt object. In our study, we used two different acquisition methods, the surface laser scan and photogrammetry, and we compared each other in terms of accuracy and reliability on the match of the shape of the blunt object used and the present wounds on the skull area. From lamb heads, we simulated an aggression with a blunt object (hammer) on the skull vault. First we took photos and removed the skulls flesh. We then captured the skull and blunt object using (for both) the surface laser scan and photogrammetry. Finally, we exported obj/dxf data of the different models to MeshLab and Blender software, and we analyzed and compared one to another. Our experimentations confirmed the simplicity and the reliability of the two methods in modeling an object, and permitted to conclude that surface scan is the preferential method in etablishment of a concordance between an impact on the anatomic surface and an object.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01177820
Contributor : Frédérique Gambade <>
Submitted on : Friday, July 17, 2015 - 10:51:46 AM
Last modification on : Friday, October 23, 2020 - 4:46:15 PM
Long-term archiving on: : Wednesday, April 26, 2017 - 7:05:06 AM

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Marine Jézéquel. Évaluation de deux méthodes pour analyser les impacts laissés par un objet contondant au niveau du crâne : scanner surfacique et photogrammétrie. Chirurgie. 2015. ⟨dumas-01177820⟩

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