Reverse engineering techniques applied to a human skull, for CAD 3D reconstruction and physical replication by rapid prototyping

Journal of Medical Engineering & Technology
L M GalantucciA De Donno

Abstract

The production of a copy of an existing object of complex shape is one of the typical applications of the integration between two modern computer-based technologies, reverse engineering (RE) and rapid prototyping (RP). The method is extremely versatile and can be used in various applicative domains (e.g. replacement of anatomical parts with artificial prostheses, replication of skeletal remains). Two different acquisition techniques of images of a skull, by laser and by CT scan, were compared to ascertain which enabled more accurate reproduction of the original specimen. The skull was chosen due to it being the body part most often used in medico-legal investigations (for personal identification, skull-photo superimposition techniques, forensic art, etc). Comparison between the copy and the original yielded satisfactory results for both techniques. However, CT scanning demonstrated some advantages over the laser technique, as it provided a cleaner point cloud, enabling shorter pre-reproduction processing times, as well as data on the internal parts, which resulted in the reproduction of a more faithful copy.

References

Feb 1, 1995·International Journal of Oral and Maxillofacial Surgery·J S BillG Wittenberg
May 13, 2003·Neurological Research·Eimir Perez-ArjonaFernando G Diaz

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Citations

Dec 3, 2011·The Journal of Prosthetic Dentistry·Robert M TaftGerald T Grant
Aug 24, 2017·Journal of Forensic Sciences·Julie Edwards, Tracy Rogers
Jan 27, 2018·Journal of Medical Systems·M T Ugidos LozanoJ A Juanes Méndez
Oct 24, 2020·Forensic Science International : Synergy·Zhen WangTaiqi Zang
Jul 30, 2021·Cleaner Engineering and Technology·Pintu PanditShakeel Ahmed

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