简单而准确的LiDAR-RGB校准使用小常见标记器
Emanuele Giacomini1, Leonardo Brizi1, Luca Di Giammarino1
1Department of Computer, Control, and Management Engineering "Antonio Ruberti", Sapienza University of Rome, 00185 Rome, Italy.
Sensors (Basel, Switzerland)
|February 10, 2024
概括
本研究介绍了一种更简单的方法,用于校准LiDAR和RGB传感器,使用标准的棋盘目标. 这种方法提高了无需复杂设备的传感器融合精度,即使在不受约束的环境中.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 计算机视觉 计算机视觉
- 传感器融合式传感器
背景情况:
- 精确的传感器融合需要精确地了解相对传感器位置.
- 当前的LiDAR-RGB校准方法往往需要复杂的目标,限制了在各种环境中的可用性.
研究的目的:
- 开发一种强大而简单的LiDAR-RGB校准方法,使用共同的目标.
- 在校准过程中减少人类干预.
主要方法:
- 利用标准A3国际象棋板目标的平度.
- 建立LiDAR和RGB传感器测量之间的对应.
- 使用非线性优化进行相对姿势估计.
主要成果:
- 从稀疏的LiDAR数据中实现了强大的特征提取.
- 证明校准性能与现有方法相提并论或优于现有方法.
- 通过定量和比较实验验证实了该方法.
结论:
- 拟议的方法为LiDAR-RGB校准提供了有效和简化的解决方案.
- 这种技术适用于复杂的校准目标不切实际的场景.
相关概念视频
Calibration Curves: Linear Least Squares
A calibration curve is a plot of the instrument's response against a series of known concentrations of a substance. This curve is used to set the instrument response levels, using the substance and its concentrations as standards. Alternatively, or additionally, an equation is fitted to the calibration curve plot and subsequently used to calculate the unknown concentrations of other samples reliably.
For data that follow a straight line, the standard method for fitting is the linear...
For data that follow a straight line, the standard method for fitting is the linear...
Calibration Curves: Correlation Coefficient
In a linear calibration curve, there is a value called the calibration coefficient, denoted by 'r,' which measures the strength and the direction of association between two variables. The correlation coefficient value ranges from −1 to +1. A value of +1 indicates a perfect positive linear correlation, −1 denotes a perfect negative correlation, and 0 implies no correlation between the two variables. A positive correlation value establishes that as one variable increases, the other increases, and...
Glassware Calibration
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...


