期刊
MACHINES
卷 10, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/machines10040243
关键词
quality inspection; photogrammetry; iterative closest point; point cloud; augmented reality
资金
- Center for Precision Metrology at University of North Carolina at Charlotte
The goal of this study was to create and demonstrate a system for fast and inexpensive quality dimensional inspection in industrial assembly line applications, with submillimeter uncertainty. This was achieved by using an open-source photogrammetry architecture to gather point cloud data of an assembled part, and comparing it to a CAD model using the iterative closest point (ICP) algorithm to quantify position errors. Augmented reality was utilized to view and display the errors in real time.
The goal of this study was to create and demonstrate a system to perform fast and inexpensive quality dimensional inspection for industrial assembly line applications with submillimeter uncertainty. Our focus is on the positional errors of the assembled pieces on a larger part as it is assembled. This is achieved by using an open-source photogrammetry architecture to gather a point cloud data of an assembled part and then comparing this to a computer-aided design (CAD) model. The point cloud comparison to the CAD model is used to quantify errors in position using the iterative closest point (ICP) algorithm. Augmented reality is utilized to view the errors in a live-video feed and effectively display said errors. The initial demonstration showed an assembled position error of 9 mm +/- 0.4 mm for a 40-mm high post.
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