Research and application of 3D laser flatness measurement system based on machine vision

被引：0

作者：

Tan W. ^{[1
]}

Fang M. ^{[1
]}

Duan F. ^{[2
]}

Zhou B. ^{[1
]}

Wu L. ^{[1
]}

机构：

[1] College of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan

[2] Guangdong Jiaming Intelligent Technology Co., Ltd., Guangzhou

来源：

Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument | 2020年 / 41卷 / 01期

关键词：

3D laser; Feature positioning; High precision measurement; Image preprocessing; Machine vision;

D O I：

10.19650/j.cnki.cjsi.J1905368

中图分类号：

学科分类号：

摘要：

Non-contact, high precision and rapid flatness measurement of miniature objects is required in the modern industry. In this study, the 3D laser flatness measurement system based on machine vision is developed by the 3D laser measurement method. Firstly, the scanning measurement principle and the flatness measurement principle of the 3D laser profilometer are studied. The laser line image is preprocessed to enhance the accuracy of the later measurement. Secondly, the geometric feature is positioned and coordinate transformed. The data are processed again to acquire the three-dimensional measurement of the object. The system provides a measuring device and method for three-dimensional non-contact, high-precision, and multi-dimensional measurement of micro-object geometry. Finally, the physical measurement experiments verify that the realized system has the advantages of accuracy, rapidity and effectiveness. The measurement accuracy can reach 0.1 μm. © 2020, Science Press. All right reserved.

引用

页码：241 / 249

页数：8

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