3D Metrology Using a Collaborative Robot with a Laser Triangulation Sensor

Sousa, Gil Boyé de; Olabi, Adel; Palos, Jorge; Gibaru, Olivier

doi:10.1016/j.promfg.2017.07.211

Cited by 16 publications

(5 citation statements)

References 10 publications

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“…Recently, the laser measurement has been used more and more widely in frontier fields, such as 3D measurement, astronomical surveying and robotics control. 69,70 Besides, researchers have carried out a lot of studies aiming at the laser radar and the light detection and ranging (LiDAR). [71][72][73][74][75] In the future, the laser measurement technique will have two main directions of development: one is the field which needs larger measurement range such as the long-distance measurement and gravitational wave vibration measurement; the other is the micro-scale measurement, which has higher requirement of precision and resolution, such as the microvibration measurement of nano-meter structures.…”

Section: Discussionmentioning

confidence: 99%

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Improved laser measurement using advanced techniques: A review

Liu

Wang

et al. 2021

Micro & Optical Tech Letters

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Laser measurement technique has been widely explored and applied in various fields in recent years due to its advantages of high measurement precision and resolution. However, applications in frontier fields such as MEMS motion measurement and robotics control pose have requirement for higher precision and resolution, which promote further studies in improving the performance of this technique. Many advanced techniques have been proposed and applied in the laser measurement system to optimize its performance, and the optimized measurement system has found its way in state-of-the-art applications. In this invited paper, we focus on the latest investigations and new applications of the improved laser measurement methods, especially present recent research works regarding the laser triangulation measurement and the laser heterodyne vibration measurement. At the end, we have discussed further developments and challenges of laser measurement technique.

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Section: Discussionmentioning

confidence: 99%

“…Recently, the laser measurement has been used more and more widely in frontier fields, such as 3D measurement, astronomical surveying and robotics control 69,70 . Besides, researchers have carried out a lot of studies aiming at the laser radar and the light detection and ranging (LiDAR) 71–75 .…”

Section: Discussionmentioning

confidence: 99%

Improved laser measurement using advanced techniques: A review

Liu

Wang

et al. 2021

Micro & Optical Tech Letters

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“…The technique can resolve millimeter-size bumps and changes in depth from hundreds of metres away. In addition, laser triangulation excels at measuring at shorter distances, making it perfectly suited to fields such as metrology or surface inspection [47].…”

Section: Optical Systemmentioning

confidence: 99%

Exploring Deep Fully-convolutional Neural Networks for Surface Defect Detection in Complex Geometries

García,

Díaz

et al. 2024

Preprint

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In this paper, we propose a machine learning approach for detecting superficial defects in metal surfaces using point cloud data. We compare the performance of two popular deep learning architectures, Multilayer Perceptron Networks (MLPs) and Fully Convolutional Networks (FCNs), with varying feature sets. Our results show that FCNs outperformed MLPs in terms of precision, recall, and f1-score. We found that transfer learning with pre-trained models can improve performance when the amount of available data is limited. Our study highlights the importance of considering the amount and quality of training data in developing machine learning models for defect detection in industrial settings with 3D images.

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“…[1][2][3] Threedimensional (3D) measurement has been used more and more widely in frontier fields. 4,5 In the process of stripe projection 3D measurement, the phase measurement results will be affected by system noise, phase shift deviation, nonlinearity of digital projector, and chargecoupled device (CCD) camera response, affecting the measurement accuracy of 3D measurement. 6 The effects of system noise and phase shift deviation can be eliminated by image preprocessing and digital phase shifting.…”

Section: Introductionmentioning

confidence: 99%

“…Laser technique has been widely used in multiple fields of detection and precision automatic control 1–3 . Three‐dimensional (3D) measurement has been used more and more widely in frontier fields 4,5 . In the process of stripe projection 3D measurement, the phase measurement results will be affected by system noise, phase shift deviation, nonlinearity of digital projector, and charge‐coupled device (CCD) camera response, affecting the measurement accuracy of 3D measurement 6 .…”

Section: Introductionmentioning

confidence: 99%

A novel method for obtaining gamma precoding values

Liu

et al. 2023

Micro & Optical Tech Letters

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The grating projection‐based three‐dimensional (3D) measurement technique has been widely used in various fields, such as industrial inspection, cultural relic protection, and reverse engineering. However, due to the nonlinear response between the input and output of the measurement system, phase measurement errors occur, which reduces the accuracy of 3D reconstruction, which is known as the gamma effect. To address this issue, a novel method has been proposed to reduce the nonlinear response of the system. Ultimately, this method reduces the impact of the gamma value on the phase accuracy in subsequent measurements. Experimental results have shown that this method can quickly calibrate the correct precoding gamma value, effectively reduce the gamma nonlinear response during the measurement process, and improve measurement accuracy.

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3D Metrology Using a Collaborative Robot with a Laser Triangulation Sensor

Cited by 16 publications

References 10 publications

Improved laser measurement using advanced techniques: A review

Improved laser measurement using advanced techniques: A review

Exploring Deep Fully-convolutional Neural Networks for Surface Defect Detection in Complex Geometries

A novel method for obtaining gamma precoding values

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