投影机
计算机科学
结构光
校准
计算机视觉
人工智能
查阅表格
像素
数字光处理
插值(计算机图形学)
结构光三维扫描仪
数字微镜装置
摄像机切除
光学
计算机图形学(图像)
图像(数学)
数学
物理
统计
程序设计语言
扫描仪
作者
Zhongwei Li,Yusheng Shi,Congjun Wang,Yuanyuan Wang
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2008-05-01
卷期号:47 (5): 053604-053604
被引量:200
摘要
System calibration is crucial for any 3-D shape measurement system. An accurate method is proposed to calibrate a 3-D shape measurement system based on a structured light technique. The projector is treated as a camera to unify the calibration procedures of a structured light system and a well-established stereo vision system. The key to realizing this method is to establish a highly accurate correspondence between camera pixels and projector pixels and generate digital micromirror device (DMD) image sets for projector calibration. A phase-shifting method is used to accomplish this task. A precalibrated lookup table and a linear interpolation algorithm are proposed to improve the accuracy of the generated DMD image, and accordingly improve the accuracy of the projector calibration and the 3-D measurement. Some experimental results are presented to demonstrate the performance of the system calibration.
科研通智能强力驱动
Strongly Powered by AbleSci AI