基于相位光栅的立体视觉测量系统及其相位解析表示  

Phase shifting profilometry based stereo vision measurement system and its phase computation

作　　者：陈新禹[1] 张太宁[1] 傅莉[1] 朱琳琳[1] 孙非[1] 

机构地区：[1]沈阳航空航天大学自动化学院,辽宁沈阳110136

出　　处：《光电子．激光》2015年第9期1707-1711,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61074090);辽宁省自然科学基金;沈阳航空航天大学青年博士启动基金(15Y11)资助项目

摘　　要：针对自由曲面,采用双目立体视觉与相移光栅结合的方式实现一种三维面型视觉测量系统。首先,对测量系统的数学模型和标定方法进行了介绍;然后,对涉及的相位解析理论进行了详细的分析;最后,针对当前相位解析过程中存在的问题提出了相应的解决方法,并与当前主流的相位解析算法进行比较,证明本文提出的算法在测量速度和精度方面具有一定的优势。实验结果表明,本文系统的测精度约为0.04mm。A profile 3D visual measurement system for free-form surface object is presented in this paper. The system combines stereo vision and phase-shifting grating. Firstly, the mathematical model of the measurement system and its calibration are demonstrated. Then,the theory of phase computation is de- scribed deeply. Finally, a novel phase computation algorithm is proposed to resolve the main problems in current researches. The comparative experiments are carried out to verify the advantages of our algo- rithm in aspects of precision and rate. The feasibility and accuracy of the system are also analyzed. Ex- tensive experimental results show that the measurement accuracy of our system is about 0.04 ram.

关 键 词：测量系统 相位光栅 相位解析 

分 类 号：TP394.1[自动化与计算机技术—计算机应用技术] TP391[自动化与计算机技术—计算机科学与技术]