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Published in: Journal of Intelligent Manufacturing 4/2024

12-05-2023

High-precision point cloud registration system of multi-view industrial self-similar workpiece based on super-point space guidance

Authors: Xingguo Wang, Xiaoyu Chen, Zhuang Zhao, Yi Zhang, Dongliang Zheng, Jing Han

Published in: Journal of Intelligent Manufacturing | Issue 4/2024

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Abstract

The demand for 3D information in intelligent manufacturing makes complete point cloud of large workpiece increasingly important in the industrial field. However, due to the limited measurement range, the existing 3D reconstruction methods are diffcult to measure the large workpiece. The self-similar structure of workpiece also results in the low performance of existing 3D registration methods. To address the above problems, the point cloud registration system based on super-point space guidance is proposed by combining fringe projection profilometry (FPP) and point cloud registration technology to register multi-view point clouds of large workpiece. Specifically, to reduce the impact of self-similar structure on registration, we utilize spatial compatibility to partition the point clouds into local super-point space pairs, based on which to guide the multi-scale feature extraction network (MFENet) to mine effective super-point features, then the super-point features with high confidence is selected to estimate the optimal pose matrix. Experimental results show our registration error measured by standard ball is 0.024 mm, and the point cloud of large workpiece we measured reach the accuracy level of laser tracker. In addition, the registration recall of our system at higher accuracy thresholds is 95%, which demonstrates the high reliability of the method for accuracy-critical applications.

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Literature
go back to reference Zeng, A., Song, S., Nießner, M., Fisher, M., Xiao, J., & Funkhouser, T. (2017). 3dmatch: Learning local geometric descriptors from RGB-D reconstructions. In Proceedings of the IEEE conference on computer vision and pattern recognition (pp. 1802–1811). https://doi.org/10.1109/CVPR.2017.29 Zeng, A., Song, S., Nießner, M., Fisher, M., Xiao, J., & Funkhouser, T. (2017). 3dmatch: Learning local geometric descriptors from RGB-D reconstructions. In Proceedings of the IEEE conference on computer vision and pattern recognition (pp. 1802–1811). https://​doi.​org/​10.​1109/​CVPR.​2017.​29
go back to reference Zhang, L., Xu, Y., Du, S., Zhao, W., Hou, Z., & Chen, S. (2018). Point cloud based three-dimensional reconstruction and identification of initial welding position. In Transactions on intelligent welding manufacturing (pp. 61–77). Springer, Singapore. https://doi.org/10.1007/978-981-10-8330-3_4 Zhang, L., Xu, Y., Du, S., Zhao, W., Hou, Z., & Chen, S. (2018). Point cloud based three-dimensional reconstruction and identification of initial welding position. In Transactions on intelligent welding manufacturing (pp. 61–77). Springer, Singapore. https://​doi.​org/​10.​1007/​978-981-10-8330-3_​4
Metadata
Title
High-precision point cloud registration system of multi-view industrial self-similar workpiece based on super-point space guidance
Authors
Xingguo Wang
Xiaoyu Chen
Zhuang Zhao
Yi Zhang
Dongliang Zheng
Jing Han
Publication date
12-05-2023
Publisher
Springer US
Published in
Journal of Intelligent Manufacturing / Issue 4/2024
Print ISSN: 0956-5515
Electronic ISSN: 1572-8145
DOI
https://doi.org/10.1007/s10845-023-02136-x

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