Medical applications of three-dimensional and four-dimensional laser scanning of facial morphology

Two-degrees offreedom laser scanning devices offer the advantage ofspeed in data acquisition over three-degrees offreedom devices. Data acquisition on patients especially children requires speed in data gathering instantaneous verification ofdata integrity and more than two degrees offreedom to adequately describe morphology. A technique to generate a pseudo-third degree of freedom scan will be presented. An additional benefit of the technique is the ability to compare data acquired at different times.© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.