光学三角测量法及其在人体测量中的应用

Optical triangulation and its applications in body measurement

光学三角测量法是以共线方程为基础,利用物体、光源、相机之间的三角关系直接进行几何解算的光学测量方法,是光学三维测量的基本方法。通过回顾国内人体测量研究的现状,指出原理研究对于相关研究的重要性。依据光学三维测量的相关分类,以共线方程为基本出发点,分析了简单照相法的原理缺陷,对于被动三角测量法和主动三角测量法之激光片光法、格雷编码光栅法的测量原理予以清晰描述。同时对不同方法及在人体测量方面的应用特点做了总结,并讨论了红外人体测量的认识误区。

Optical triangulation is a basic profilometry based on the collinear equation by using the triangular relationship between the object,light source and a camera to get the direct solution geometrically.This paper reviewed the domestic anthropometric studies,and pointed out the importance of the principle research to the relative exploration.According to the classification of optical profilometry,and following the collinear equation,the faults of simple photogrammetry in body measurement were pointed out,and the principles of the passive triangular method,the laser sectioning,and Gray code grating method of active triangulation were described mathematically.The features of each method on body scanning were summed up and the misunderstandings about infrared body scanning were also discussed.