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Proceedings Paper

Development of a 3-D data acquisition system for human facial imaging
Author(s): Stephen J. Marshall; R. C. Rixon; Don N. Whiteford; Peter J. Wells; S. J. Powell
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Paper Abstract

While preparing to conduct human facial surgery, it is necessary to visualise the effects of proposed surgery on the patient's appearance. This visualisation is of great benefit to both surgeon and patient, and has traditionally been achieved by the manual manipulation of photographs. Technological developments in the areas of computer-aided design and optical sensing now make it possible to construct a computer-based imaging system which can simulate the effects of facial surgery on patients. A collaborative project with the aim of constructing a prototype facial imaging system is under way between the National Engineering Laboratory and St George's Hospital. The proposed system will acquire, display and manipulate 3-dimensional facial images of patients requiring facial surgery. The feasibility of using two NEL developed optical measurement methods for 3-D facial data acquisition had been established by their successful application to the measurement of dummy heads. The two optical measurement systems, the NEL Auto-MATE moire fringe contouring system and the NEL STRIPE laser scanning triangulation system, were further developed to adapt them for use in facial imaging and additional tests carried out in which emphasis was placed on the use of live human subjects. The knowledge gained in the execution of the tests enabled the selection of the most suitable of the two methods studied for facial data acquisition. A full description of the methods and equipment used in the study will be given. Additionally, work on the effects of the quality and quantity of measurement data on the facial image will be described. Finally, the question of how best to provide display and manipulation of the facial images will be addressed.

Paper Details

Date Published: 1 July 1990
PDF: 14 pages
Proc. SPIE 1231, Medical Imaging IV: Image Formation, (1 July 1990); doi: 10.1117/12.18784
Show Author Affiliations
Stephen J. Marshall, National Engineering Lab. (United Kingdom)
R. C. Rixon, National Engineering Lab. (United Kingdom)
Don N. Whiteford, National Engineering Lab. (United Kingdom)
Peter J. Wells, St. George's Hospital (United Kingdom)
S. J. Powell, St. George's Hospital (United Kingdom)

Published in SPIE Proceedings Vol. 1231:
Medical Imaging IV: Image Formation
Roger H. Schneider, Editor(s)

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