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A Visual-Feedback-Based Active Light-Section 3-D Reconstruction Method for Moving Objects
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DOI：10.1109/TIM.2024.3406828.png)
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摘要
En 中文
Line laser technology is advantageous due to its superior interference resistance, swift scanning capabilities, and high precision, and has been extensively adopted in several industrial sectors. However, when dealing with moving objects, existing laser scanning techniques often result in significant measurement errors due to the absence of motion-related feedback. This article introduces an innovative approach that synergistically combines tracking and active 3-D reconstruction tailored for moving objects. By integrating visual feedback derived from tracking outcomes, the proposed system ensures that the object maintains a relatively stable relationship with the 3-D reconstruction process throughout its movement. The hardware configuration facilitates simultaneous control of tracking, laser scanning, and 3-D reconstruction. A comprehensive mathematical model is established to encompass the tracking, active 3-D reconstruction, and 3-D motion compensation. Furthermore, a precise calibration method based on this mathematical model is detailed. Experiments indicate the effectiveness of the proposed method. Specifically, for objects moving at 1000 mm/s, our system achieves a 3-D reconstruction accuracy of 0.5 mm, comparable to scenarios with stationary objects. This suggests that our method is promising for high-quality 3-D reconstruction of moving objects, enhancing the potential of laser scanning systems for applications such as motion analysis, real-time industrial inspections, and robotic interactions.
Keyword:
Active 3-D reconstruction
calibration
galvanometer
light-section
moving objects
期刊
IF:
5.9
论文数:
2.0W
被引数:
5.8W
机构
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