摘要
The facial three-dimensional stereophotography technology is based on digital stereogrammetry technology. According to different light sources, it can be divided into three kinds, active, passive and hybrid. This system can show characteristics of height, width and depth of facial soft tissues . It has the advantages of high reproducibility, low precision, high reliability, fast image acquisition, noninvasiveness and repeatability. The image can be used for facial anthropometric measurement , as well as establishing a three-dimensional facial model for surgical simulation and analysis . It can also record facial features of patients which can be used for follow-up.
