摘要
介绍了彩色面结构光栅投影轮廓术的基本原理,该原理在投影光栅方面采用正弦编码的投影光栅,这样可以采用快速的直接光栅条纹解调的方法,实现了对被测物体单视角数据的测量,并对标准台阶进行了测量。分析了测量过程中存在的误差及其产生的原因;并针对各种误差提出了相应的改进或克服方法;最后,使用该方法对具有复杂自由曲面的脚型进行了测量,实验结果表明:该方法能够快速、准确地获取被测物体的三维数据。
The principles of profilometry with color face-structured projecting grating was introduced in this paper. The sine coded projecting grating was adopted, so that the rapid direct demodulation of grating fringe method could be used to carry out the measurement of single view angle of the object, and a standard step was measured by the method. The reason that caused errors in the measuring process was analyzed, and the corresponding improving method was put forward. Finally, the foot of complex free-form surface was measured by the method, and the results show that the method can obtain the 3D data of the object quickly and accurately.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2008年第5期80-84,共5页
Opto-Electronic Engineering
基金
福建省科技计划重大专项前期预研项目(2005HZ1013)
福建省自然科学基金计划资助项目(E0710017)
福建省自然科学基金资助项目(E0540002)
校基金资助项目(06HZR12)
关键词
光栅投影轮廓术
彩色面结构光栅
光栅条纹解调法
profilometry with projecting grating
color face-structured grating
demodulation of grating fringe
