用特殊材料搭建稳定支架，提升OptiTrack摄像头测量精度。
Reproducible Optical Tracking Precision: Evaluating a Static, Near-Parallel Support Structure for OptiTrack PrimeX22 Cameras
- 采用碳纤维和因瓦钢构建低热膨胀支架，保证几何稳定性。
- 相机距离越近，测量精度越高，线方向误差±0.74 mm，垂直方向±0.12 mm。
- 系统可模块化复现，适合工业与医疗设备高精度追踪场景。
本文设计并评估了一种用于OptiTrack X22追踪系统的物理支撑结构，采用碳纤维增强聚合物（CFRP）和因瓦钢制成，因其低热膨胀特性，确保了空间测量所需的几何稳定性和刚性。该支撑系统具备可扩展性，适用于多种应用场景。研究进一步分析了近平行配置下相机位置与间距对测量精度的影响。实验表明，相机间距与测量精度显著相关：距离越近，精度越高。优化后的相机布局使原型系统在相机视线方向达到±0.74 mm的精度，在垂直方向达±0.12 mm。在垂直于相机视线的单个测量平面上，噪声标准差介于0.02至0.07之间，表明测量噪声在该平面内并非恒定。文中详细提供了系统设计与验证方法，以增强可复现性，推动工业自动化与医疗设备追踪等领域的进一步发展。通过提供经验证精度的模块化方案，本工作旨在促进高精度追踪技术的创新与实际应用，助力该领域更广泛的采纳与迭代进步。
原文摘要 · Abstract (English)
This paper presents the design and evaluation of a physical support structure for the OptiTrack X22 tracking systems, constructed from carbon fiber-reinforced polymer (CFRP) and Invar steel. These materials were chosen for their low thermal expansion, ensuring geometric stability and rigidity necessary for accurate spatial measurements. The support system is scalable and adaptable for various applications and setups. The study further investigates the effects of camera placement and separation in near-parallel configurations on measurement accuracy and precision. Experimental results show a significant correlation between camera distance and measurement precision - closer camera setups yield higher precision. The optimized camera arrangement allowed the prototype to achieve accuracies of +/-0.74 mm along the camera's line of sight and +/-0.12 mm in orthogonal directions. The experiments show that the standard deviation of the noise on a single measurement plane orthogonal to the camera's line of sight vary between 0.02 and 0.07, indicating that the measurement noise is not constant for every point on that specific plane in the meanurement space. Details of the system's design and validation are provided to enhance reproducibility and encourage further development in areas like industrial automation and medical device tracking. By delivering a modular solution with validated accuracy, this work aims to promote innovation and practical application in precision tracking technology, facilitating broader adoption and iterative improvements. This approach enhances the accessibility and versatility of high-precision tracking technology, supporting future progress in the field.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品；中文卡片由大模型生成，请以原文为准。