The virtual human face – superimposing the simultaneously captured 3D photorealistic skin surface of the face on the untextured skin image of the CBCT Scan

Busuttil Naudi, K., Benramadan, R., Brocklebank, L., Ayoub, A. , Ju, X. and Khambay, B. (2013) The virtual human face – superimposing the simultaneously captured 3D photorealistic skin surface of the face on the untextured skin image of the CBCT Scan. International Journal of Oral and Maxillofacial Surgery, 42(3), pp. 393-400. (doi: 10.1016/j.ijom.2012.10.032)

[img]
Preview
Text
62871.pdf

112kB

Abstract

The aim of this study was to evaluate the impact of simultaneous capture of the three-dimensional (3D) surface of the face and cone beam computed tomography (CBCT) scan of the skull on the accuracy of their registration and superimposition. 3D facial images were acquired in 14 patients using the Di3d (Dimensional Imaging, UK) imaging system and i-CAT CBCT scanner. One stereophotogrammetry image was captured at the same time as the CBCT and another one hour later. The two stereophotographs were then individually superimposed over the CBCT using VRmesh. Seven patches were isolated on the final merged surfaces. For the whole face and each individual patch; maximum and minimum range of deviation between surfaces, absolute average distance between surfaces, and standard deviation for the 90th percentile of the distance errors were calculated. The superimposition errors of the whole face for both captures revealed statistically significant differences (P=0.00081). The absolute average distances in both separate and simultaneous captures were 0.47mm and 0.27mm, respectively. The level of superimposition accuracy in patches from separate captures ranged between 0.3 and 0.9mm, while that of simultaneous captures was 0.4mm. Simultaneous capture of Di3d and CBCT images significantly improved the accuracy of superimposition of these image modalities.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ayoub, Professor Ashraf and Ju, Dr Xiangyang and Brocklebank, Mrs Laetitia and Busuttil Naudi, Dr Kurt and Khambay, Dr Balvinder
Authors: Busuttil Naudi, K., Benramadan, R., Brocklebank, L., Ayoub, A., Ju, X., and Khambay, B.
Subjects:R Medicine > RK Dentistry
R Medicine > RZ Other systems of medicine
College/School:College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School
Journal Name:International Journal of Oral and Maxillofacial Surgery
ISSN:0901-5027
Published Online:08 December 2012
Copyright Holders:Copyright © 2012 Elsevier
First Published:First published in International Journal of Oral and Maxillofacial Surgery
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

University Staff: Request a correction | Enlighten Editors: Update this record