ISSN: 0022-1198
CODEN: JFSCA
Page Count: 4

A Fully Three-Dimensional Method for Facial Reconstruction Based on Deformable Models
Ollier, A
Laboratory of Physical Anthropology, National Center of Scientific Research,

Grévin, G
Laboratory of Physical Anthropology, National Center of Scientific Research,

Quatrehomme, G
Forensic pathologist, Maître de Conférences des Universités, Laboratory of Forensic Medicine, Faculté de Médecine,

Subsol, G
Epidaure Group, National Institute for Research for Informatic and Automatic,

Delingette, H
Epidaure Group, National Institute for Research for Informatic and Automatic,

Fidrich, M
Epidaure Group, National Institute for Research for Informatic and Automatic,

Bailet, P
Laboratory of Physical Anthropology, National Center of Scientific Research,

Cotin, S
Epidaure Group, National Institute for Research for Informatic and Automatic,

Garidel, Y
Laboratory of Ethnology, Faculté des Lettres,

(Received 15 July 1996; accepted 11 November 1996)

Abstract

Two facial models corresponding to two deceased subjects have been manually created and the two corresponding skulls have been dissected and skeletonized. These pairs of skull/facial data have been scanned with a CT scanner, and the computed geometric three-dimensional models of both skulls and facial tissue have been built. One set of skull/facial data will be used as a reference set whereas the second set is used as ground truth for validating our method. After a semi-automatic face-skull registration, we apply an original computing global parametric transformation T that turns the reference skull into the skull to be reconstructed. This algorithm is based upon salient lines of the skull called crest lines; more precisely the crest lines of the first skull are matched to the crest lines of the second skull by an iterative closest point algorithm. Then we apply this algorithm to the reference face to obtain the “unknown” face to be reconstructed. The reliability and difficulties of this original technique are then discussed.

Keywords:
forensic science, forensic anthropology, human identification, facial reconstruction, computer imaging, casting, forensic pathology

Paper ID: JFS14175J
DOI: 10.1520/JFS14175J
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