Ayoub, A.F. , Xiao, Y., Khambay, B., Siebert, J.P. and Hadley, D. (2007) Towards building a photo-realistic virtual human face for craniomaxillofacial diagnosis and treatment planning. International Journal of Oral and Maxillofacial Surgery, 36, pp. 423-428. (doi: 10.1016/j.ijom.2007.02.003)
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Abstract
The aim of this investigation was to assess the feasibility of building a virtual human face digitally by superimposing a photo-realistic three-dimensional (3D) soft-tissue surface on bone in the correct relationship and evaluating the registration errors associated with this method. The 3D soft-tissue surface of the face was captured using a fast stereophotogrammetry method and the underlying bone was recorded using a 3D computed tomography (CT) scanner. Using the Procrustes registration method, the outer surface of the 3D CT scan and the photo-realistic soft-tissue surfaces were merged into a single Virtual Reality Modelling Language (VRML) file and displayed using a standard VRML viewer. Quantitative measurements of registration errors were calculated in the reconstructed human head models using the signed closest point distance from the photo-realistic skin surface to the transformed CT skin surface. The registration errors between most parts of the aligned surfaces were within ±1.5 mm. The errors were relatively large around the eyebrows, eyelids and cheeks. Simultaneous recording of the face and skull may reduce this error.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Ayoub, Professor Ashraf and Xiao, Mr Yijun and Siebert, Dr Paul and Hadley, Professor Donald and Khambay, Dr Balvinder |
| Authors: | Ayoub, A.F., Xiao, Y., Khambay, B., Siebert, J.P., and Hadley, D. |
| College/School: | College of Science and Engineering > School of Computing Science College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School |
| Journal Name: | International Journal of Oral and Maxillofacial Surgery |
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