基于二进制编码结构光的三维形貌测量系统及其标定

A 3-D Shape Measurement System Based on Binary-Code Light Projection Method and Its Calibration

建立了一个基于二进制编码结构光的三维形貌测量系统,推导了测量系统的物象关系式,并对测量系统进行了标定。在对编码投影光平面的标定过程中,提出利用代数射影几何中的交比不变原理对其进行标定的方案,并论述了标定原理。然后,结合系统的整体标定方案,设计了实验靶标,进行了标定实验,并生成了若干编码投影光平面的标定结果图像。

In order to measure the shape of three-dimensional objects,a non-contact system based on binary-code light projection method was developed.Based on the derivation of relationship between the object and the image,the system was calibrated.In the calibration of the system,a plan based on the principle of cross ratio invariance in algebraic projective geometry was used to calibrate the coded light planes.According to the calibration project,the experiment drone was designed and the calibration experiments were conducted.Some calibration images of the coded light planes were finally obtained.