采用新投影技术的三维轮廓术  

Three-dimensional profilometry based on a new projecting technique

作　　者：田丰[1] 陈文艺[1] 周剑 赵宏 谭玉山 

机构地区：[1]西安交通大学机械工程学院激光红外研究所

出　　处：《激光与光电子学进展》1996年第5期12-15,共4页Laser & Optoelectronics Progress

摘　　要：提出一种基于新的投影方式的三维面影测量技术。这项技术解决了传统投影方式在测量较大物体时带来的视场不够、亮度不均匀，从而影响测量范围及测量精度的问题。在一个三维测量仪上，以一个石膏模人体头像为测量对象，提出一种新的定标技术及图象合成方法，利用快速傅里叶交换给出了实测结果。测试结果表明，该技术是简单、可行的。A three-dimensional (3-D) profile measurement method based on a new projecting technique is proposed. It can solve the problems that the traditional projection method causes,such as the limited range of light field,uneven illuminance and etc.,that have disadvantageous effects on the measuring range and precision. In a 3-D profiling apparatus a plaster head of human being used as an object to be measured,a new method for calibration is presented. The final results based on the fast Fourier transform(FFT)show that this new technique is simple, practical and easily to be realized.

关 键 词：双投影 三维面形测量 傅里叶变换 

分 类 号：TH741.506[机械工程—光学工程]