结构光三维扫描仪
度量(数据仓库)
计算机科学
投影(关系代数)
校准
结构光
光学
镜面反射
栅栏
绝对相位
计量系统
投影机
相(物质)
计算机视觉
人工智能
物理
算法
量子力学
数据库
相位噪声
天文
扫描仪
作者
Wolfgang Schreiber,Gunther Notni
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2000-01-01
卷期号:39 (1): 159-159
被引量:113
摘要
We report the basic concepts and experimental arrange- ments of self-calibrating 3-D measurement systems using structured- light illumination (fringe projection), which ensure a high number of ob- ject points, rapid data acquisition, and a simultaneous determination of coordinates and system parameters (self-calibration), making the system completely insensitive to environmental changes. Furthermore, it is un- necessary to have any marker on the object surface and a subsequent matching of the single views is not required to obtain a full-body mea- surement. For this purpose, the test object is successively illuminated with two grating sequences perpendicular to each other from at least two different directions, resulting in surplus phase values for each measure- ment point. Based on these phase values one can calculate the orienta- tion parameters as well as the 3-D coordinates simultaneously. Different measurement setups that have the ability to measure the entire surface (full-body measurement) are reported. Results are presented showing the power of this concept, for example, by measuring of the complete 3-D shape of specular technical surfaces, whereas the object volumes can differ strongly. Theoretical estimations proven by first measurements show a coordinate measurement accuracy of up to 10 25 of the measure- ment field size. © 2000 Society of Photo-Optical Instrumentation Engineers. (S0091-3286(00)01801-8)
科研通智能强力驱动
Strongly Powered by AbleSci AI