咀嚼过程人脸颊外形动态变化的光学三维测量

An Optical Real-time 3-D Measurement for Facial Shape and Movement in Chewing

通过CCD摄像机快速获取由罗奇(Rochi)光栅投影到处于动态变化过程中人脸表面上的一系列变形条纹,经过傅立叶变换、频谱滤波、逆傅立叶变换及相位展开等处理后得到重建的一系列脸部颊面面形,再现处于咀嚼过程中的人脸颊部动态变化过程。

A method for facial shape and movement measurement based on Fourier transform profilometry(FTP) was proposed.A sequence of dynamic deformed fringe images on the surface of human face was grabbed by CCD camera and saved on disk rapidly.By Fourier transform,filtering,inverse Fourier transform and unwrapping these phase maps in 3-D phase space.The complex shape deformation when the movement of mouth was recovered.With digital shape of human face,the oral and maxillofacial surgeon is able to design the future new face of patient easily.