基于MATLAB光栅周期校正方法的研究  

Correction of Grating Period Based on MATLAB

作　　者：严家明[1] 于洪伟[1] 张毛毛[1] 严畅[1] 乔阳[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129

出　　处：《光学与光电技术》2013年第3期27-30,共4页Optics & Optoelectronic Technology

摘　　要：针对投影机倾斜投影产生的光栅周期展宽现象带来的误差,对投影机倾斜投影时光栅相位的变化关系进行分析,用Matlab编写生成一个条纹周期不均匀的校正光栅,输出到投影仪投影,使得倾斜投影到参考面上的光栅条纹周期均匀,以提高光栅投影三维测量的精度。实验结果表明,该方法可以有效地将倾斜投影到参考面上的条纹周期变得均匀。The relationship of grating phase change is analyzed according to the error of grating period broaden phenomenon caused by projector aslant projection. A correction grating which period is not uniform is written by Matlab. The correction grating is projected by the projector. The grating stripe period aslant projected on the reference plant is uniform. It can improve the 3D measurement precision of grating projection. The experiments results show that the method can effectively make the grating period aslent projected on the reference olane become uniform.

关 键 词：投影机 倾斜投影 周期展宽 光栅 参考面 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]