作为一种有效而可靠的三维重建和主动测量手段,结构光三维视觉技术得到越来越多的关注.在结构光三维视觉系统中,编码方法关系到投影图案与摄取的投影图像中对应点匹配的精度和速度,是快速准确地获取三维场景信息的关键.文中首先简要介绍了编码结构光三维视觉的基本原理,并对近年来国内外提出的各种结构光编码方法进行了总体回顾.通过分类比较,分析了各种方法的优点和局限性.对今后编码方法的研究方向进行了展望.
As an efficient and reliable method in 3D reconstruction and active measurement,structured light vision technology is being more and more important.In a structured light system,accurate reconstruction depends on the correct correspondences between the points in the image and the points in the projected pattern,where a proper codification method would be crucial in real applications.In this paper,after a brief introduction of the coded structure light system,a survey is then presented to summary the existing codification methods.The advantages and limitations of the different methods are discussed.Finally,a summarization of the codification methods and a discussion of future trends are provided.