G. Bhatia et al., QUANTIFICATION OF FACIAL SURFACE CHANGE USING A STRUCTURED LIGHT SCANNER, Plastic and reconstructive surgery, 94(6), 1994, pp. 768-774
Three-dimensional surface changes that accompany facial surgical proce
dures were measured noninvasively and evaluated quantitatively. An opt
ical three-dimensional surface scanner with 360-degree surface coverag
e of a subject's head and a subsecond data acquisition was used. The s
canner employs six pairs of ''white light'' pattern projectors and dig
ital TV cameras. A noncontact optical method to quantify facial surfac
e morphology and objectively assess change resulting from reconstructi
ve or cosmetic plastic surgery has been developed. This quantification
technique was implemented and tested with the three-dimensional range
scanner. This technique defines the entire surface of the head and fa
ce, as opposed to the conventional manual method of measuring surface
points or facial landmarks. The method allows facial volume change ass
essment. The method was tested by repeatedly scanning a volunteer who
was injected subcutaneously with known volumes of anesthetic solution.
The measured and injected volumes were compared and showed little dif
ference.