Laser projection positioning of spatial contour curves via a galvanometric scanner

Junchao Tu; Liyan Zhang

doi:10.1117/12.2309485

13 April 2018 Laser projection positioning of spatial contour curves via a galvanometric scanner

Junchao Tu, Liyan Zhang

Proceedings Volume 10696, Tenth International Conference on Machine Vision (ICMV 2017); 1069625 (2018) https://doi.org/10.1117/12.2309485
Event: Tenth International Conference on Machine Vision, 2017, Vienna, Austria

Abstract

The technology of laser projection positioning is widely applied in advanced manufacturing fields (e.g. composite plying, parts location and installation). In order to use it better, a laser projection positioning (LPP) system is designed and implemented. Firstly, the LPP system is built by a laser galvanometric scanning (LGS) system and a binocular vision system. Applying Single-hidden Layer Feed-forward Neural Network (SLFN), the system model is constructed next. Secondly, the LGS system and the binocular system, which are respectively independent, are integrated through a datadriven calibration method based on extreme learning machine (ELM) algorithm. Finally, a projection positioning method is proposed within the framework of the calibrated SLFN system model. A well-designed experiment is conducted to verify the viability and effectiveness of the proposed system. In addition, the accuracy of projection positioning are evaluated to show that the LPP system can achieves the good localization effect.

Citation Download Citation

Junchao Tu and Liyan Zhang "Laser projection positioning of spatial contour curves via a galvanometric scanner", Proc. SPIE 10696, Tenth International Conference on Machine Vision (ICMV 2017), 1069625 (13 April 2018); https://doi.org/10.1117/12.2309485

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