一种新的结构光三维测量方法

A Novel 3D Information Measure Method Used By Structured Light Scanning

结构光三维测量方法主要分为两个部分,第一部分是投影结构光并拍摄获得结构光图像,然后进行结构光解码得到结构光的图像二维信息;第二部分是根据投影仪、相机和目标物体的相对位置把结构光的图像二维信息转化为目标物体的三维信息。本文在结构光三维测量方法的第二部分做了创新,把单应性矩阵运用到确定投影仪、相机和目标物体的相对位置的计算上,在保证精度的条件下简化了三维测量的操作步骤和计算方法。

Structured light 3D measurement method which includes two phase. Phase one： camera captured images of projected structured light coded pattern, and the images were decoded into camera 2D coordinate information; phase two： the camera 2D coordinate information was transformed into world 3D coordinate information according to the relative position of projector, camera and objects. This paper give a novel method in the later phase, which by using homograph matrix to get the relative position of projector, camera and objects instead of traditional calibration method. It simplifies the steps and calculation without decreasing the precision.