Performance evaluation of a portable 3D imaging system

被引:3
|
作者
Givi, Mehrdad [1 ]
Cournoyer, Luc [1 ]
Reain, Greg [1 ]
Eves, Brian J. [1 ]
机构
[1] Natl Res Council Canada, NRC Metrol, Ottawa, ON K1A 0R6, Canada
关键词
Portable 3D imaging systems; Sphere-to-sphere distance measurement error; Uncertainty budget; CAPABILITY;
D O I
10.1016/j.precisioneng.2019.06.002
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
y Portable 3D imaging systems are important tools used by industry for metrology, inspection, and reverse engineering. The Creaform HandySCAN 300 is a portable 3D imaging system that utilizes photogrammetry to orientate a handheld scanner relative to the part under test. The system does not have a well-defined coordinate system or a fixed measurement range and there currently exists a lack of nonnative standards suitable for evaluating the performance of such a system. We use the determination of sphere-to-sphere distances and the related measurement uncertainty as a proxy for evaluating the systems performance. The error sources of the imaging system were quantified and an improved measurement process that minimized errors was developed. A comparison between measurements by the HandySCAN 300 and a coordinate measuring machine showed good agreement with normalized errors of less than one.
引用
收藏
页码:156 / 165
页数:10
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