| DMD芯片在光栅投影三维轮廓测量技术中的应用 |
| 投稿时间：2006-03-10 修订日期：2006-03-10 点此下载全文 |
| 引用本文：陈坦,赖建军,赵悦.DMD芯片在光栅投影三维轮廓测量技术中的应用[J].红外,2006,(9):24~28 |
| 摘要点击次数: 1007 |
| 全文下载次数: 48 |
| 陈坦 赖建军 赵悦 |
| 华中科技大学光电子工程系,湖北武汉430074 |
| 基金项目:国防预研基金项目（编号：51401010104JW05） |
|
| 中文摘要:光栅投影成像法经常用于物体的非接触形状测量和形变测量。通过莫尔相移法，可以实时获得物体表面的等高轮廓线。但是在测量高速运动物体三维轮廓图像时误差较大，因为相移法需要拍摄几张经过相移后的变形光栅。在加入了DMD芯片后，可以在CCD的一帧图像时间内完成所有的相移后变形光栅的图像拍摄，有效地降低了高速运动物体三维轮廓成像的误差。 |
| 中文关键词:光栅投影成像 莫尔相移法 数字微镜器件 三维物体成像 |
| |
| Application of DMD in 3-D Profilometry Using Grating Projection |
| CHEN Tan LAI Jian-jun ZHAO Yue Wuhan 430074 China) |
| Dept. of Optoelectronic Engineering, Huazhong University of Science and Technology (HUST |
|
| Abstract:A grating projection imaging method is often used in non-contact shape and deformation measurement.By using moire topography,the equal-height or equal-displacement contour images of an object can be obtained in real time.However,more errors would be generated when the three dimensional (3-D)contour images of an object moving at a high speed are measured, because the phase-shifting moire method should capture several deformation grating images which have been phase-shifted.After a Digital Micro-mirror Device(DMD)is incorporated,the phase-shifting scanning moire method can obtain an equal-height or equal-displacement contour image within a frame time,and hence effectively reduce the imaging error of the 3-D contour of the object which is moving at high speed. |
| keywords:grating projection imaging,phase-shifting moire method,DMD,3D object imaging |
| 查看全文 HTML 查看/发表评论 下载PDF阅读器 |