Flexible Measurement Technology of Complex Curved Surface Three-Dimensional Shape Robot Based on iGPS

Li, 刘丽 Liu; Guoqing, 马国庆 Ma; Yi, 高艺 Gao; Qiang, 王强 Wang

doi:10.3788/cjl201946.0304006

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“…The first method is the multi-sensor perspective splicing method. For example, Liu et al [15] proposed a 3D measurement system to improve the accuracy of point cloud stitching based on the Indoor Global Positioning System (IGPS) [16]. Du et al [17] proposed a flexible large-scale 3D scanning system assembled by combining a robot, a binocular structured light scanner, and a laser tracker.…”

Section: Introductionmentioning

confidence: 99%

Linear Laser Scanning Measurement Method Tracking by a Binocular Vision

Luo

et al. 2022

Sensors

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The 3D scanning of a freeform structure relies on the laser probe and the localization system. The localization system, determining the effect of the point cloud reconstruction, will generate positioning errors when the laser probe works in complex paths with a fast speed. To reduce the errors, in this paper, a linear laser scanning measurement method is proposed based on binocular vision calibration. A simple and effective eight-point positioning marker attached to the scanner is proposed to complete the positioning and tracking procedure. Based on this, the method of marked point detection based on image moment and the principle of global coordinate system calibration are introduced in detail. According to the invariance principle of space distance, the corresponding points matching method between different coordinate systems is designed. The experimental results show that the binocular vision system can complete localization under different light intensities and complex environments, and that the repeated translation error of the binocular vision system is less than 0.22 mm, while the rotation error is less than 0.15°. The repeated error of the measurement system is less than 0.36 mm, which can meet the requirements of the 3D shape measurement of the complex workpiece.

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Section: Introductionmentioning

confidence: 99%

Linear Laser Scanning Measurement Method Tracking by a Binocular Vision

Luo

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

Flexible Measurement Technology of Complex Curved Surface Three-Dimensional Shape Robot Based on iGPS

Cited by 1 publication

References 0 publications

Linear Laser Scanning Measurement Method Tracking by a Binocular Vision

Linear Laser Scanning Measurement Method Tracking by a Binocular Vision

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