3D coordinates measurement based on structured light sensor

被引：31

作者：

Wei, ZZ ^{[1
]}

Zhou, FQ ^{[1
]}

Zhang, GJ ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Instrumentat Sci & Optelect Engn, Beijing 100083, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2005年 / 120卷 / 02期

关键词：

structured light; subpixel; calibration; cross-ratio; planar target;

D O I：

10.1016/j.sna.2004.12.007

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper mainly discusses several challenges in exploiting a structured light sensor to realize 3D coordinates measurement: a practical and flexible sensor structure is proposed with accuracy analysis, a very robust and accurate line extraction method is adopted to localize the center of the light stripe under considerable disturbances, the invariance of double cross-ratio based method is used to obtain enough accurate calibration points and a novel planar target based calibration method is presented. An application system of the structured light sensor for tyre inspection is set up, and the real online measurement results show that the application system has good repeatability and accuracy. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：527 / 535

页数：9

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