针对自动驾驶汽车的多模式传感器系统的联合校准
1Faculty of Electrical Engineering, University of Ljubljana, Tržaška Cesta 25, SI-1000 Ljubljana, Slovenia.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
精确校准多式传感器系统,包括RGB,热和LiDAR,对于现场应用至关重要. 本研究引入了一种系统方法,用于使用LiDAR校准各种相机模式,从而实现精确的数据融合和特征提取.
科学领域:
- 机器人和计算机视觉 机器人和计算机视觉
- 传感器融合式传感器
- 校准技术 校准技术
背景情况:
- 多模式传感器系统对于现场应用至关重要,但由于不同的传感器方式,它们面临着校准挑战.
- 准确的校准对于可靠的数据解释和从RGB,热和LiDAR等多种传感器中提取特征至关重要.
- 现有的方法在交叉模式特征对应方面扎,使传感器校准成为一个悬而未决的问题.
研究的目的:
- 关于LiDAR传感器的多种相机模式 (RGB,热,偏振,双频谱近红外) 的校准,提出一个系统的方法.
- 开发一种适用于任何模式的单摄像头到LiDAR校准的方法.
- 为了在不同的摄像头模式之间建立一个对意识的像素映射,以便无地传输数据.
主要方法:
- 使用平面校准目标对一个LiDAR传感器进行校准各种相机模式 (RGB,热,偏振,双频谱近红外).
- 提出了一种使用LiDAR系统对单个相机进行校准的新方法,可适应任何能够检测校准模式的模式.
- 开发了一种方法,用于在不同的相机类型之间创建对称感知像素映射.
主要成果:
- 通过LiDAR成功展示了一种用于校准各种摄像机模式的系统方法.
- 验证了一种灵活的单摄像头到LiDAR校准方法,在不同类型的传感器中有效.
- 建立了对位移感知映射,使异质相机模式之间能够有效地传输数据和提取特征.
结论:
- 提出的系统方法显著推进了多式联络传感器系统的现场校准.
- 开发的方法促进了准确的数据融合,并使先进的深度学习应用,如跨模式的检测和细分成为可能.
- 这项工作为克服复杂传感器网络中跨模式校准挑战提供了基础方法.
相关概念视频
01:12Instrument Calibration
222
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
222
01:20Calibration Curves: Linear Least Squares
1.4K
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...
1.4K
01:10Calibration Curves: Correlation Coefficient
1.7K
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...
1.7K
01:24One-Degree-of-Freedom System
519
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
519
01:22Multi-input and Multi-variable systems
132
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
In the absence...
132
01:11Glassware Calibration
283
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...
283