概括
这项研究引入了一种新的方法,用于校准边缘投影特征测量中的色彩交叉. 该技术使用相位误差准确确定交叉声系数,改善高精度3D测量.
科学领域:
- 光学计量学 在光学计量学
- 3D成像系统 3D成像系统
- 颜色图像处理 颜色图像处理
背景情况:
- 颜色边缘投影特征测量 (CFPP) 对于精确的3D表面测量至关重要.
- 摄像头通道中的色彩交叉声会降低测量准确度.
- 现有的校准方法通常依赖于调制计算,这可能不那么稳健.
研究的目的:
- 为CFPP提出一种用于校准彩色摄像头中的交叉声谱矩阵的新方法.
- 建立一个包裹的相位误差模型,考虑颜色交叉声.
- 通过有效减轻交叉声效应,实现高精度的3D测量.
主要方法:
- 一种新方法校准了使用相位误差,而不是调制的交叉交叉系数.
- 设计的颜色直角相位移边框图案被投射到白色板上.
- 横向和垂直方向的相位移动边框图案从捕获的图像中分离出来.
- 交叉语音系数是通过将标准和受交叉语音影响的包装相之间的误差关系进行校准的.
主要成果:
- 拟议的方法成功校准了彩色相机的交叉声谱矩阵.
- 模拟和实验验证证证实了该方法的有效性.
- 准确的形状和距离测量分别在白色板和步骤块上实现.
结论:
- 这种基于相位错误的新校准方法有效地解决了CFPP中的颜色交叉声.
- 这种方法提高了彩色边框投影系统中3D测量的准确性.
- 经过验证的方法提供了一个可靠的解决方案,用于在光学计量学中消除交叉跟踪.
相关概念视频
Calibration 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
Time and frequency -Domain Interpretation of Phase-lead Control
105
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
105
Calibration 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
Glassware Calibration
280
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...
280
Phase Contrast and Differential Interference Contrast Microscopy
8.2K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
8.2K


