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相关概念视频

Calibration Curves: Linear Least Squares01:20

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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...
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Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
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用于降低基于吸收的LWIR深度传感器的校准成本的affine转换表示.

Takahiro Kushida1, Ryutaro Nakamura2, Hiroaki Matsuda2

  • 1College of Information Science and Engineering, Ritsumeikan University, 2-150 Iwakura-cho, Ibaraki, Osaka, 567-8570, Japan. tkushida@fc.ritsumei.ac.jp.

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概括

这项研究引入了多谱长波红外 (LWIR) 测距的新线性方法,简化了距离和温度测量. 这种方法显著减少了校准时间,并避免了复杂的非线性问题解决,以准确地估计深度.

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 遥感 遥感 遥感 遥感
  • 计算成像技术的成像

背景情况:

  • 多光谱长波红外 (LWIR) 测距使用波长依赖的光吸收来估计物体距离.
  • 现有的方法涉及漫长的校准和复杂的非线性反向问题解决,冒着当地最小值的风险.
  • 准确的深度估计对于各种应用,包括自主导航和环境监测至关重要.

研究的目的:

  • 开发一种简化和高效的方法,用于多光谱LWIR测距.
  • 为了降低与当前的LWIR测距技术相关的校准成本和复杂性.
  • 提供封闭式解决方案,同时进行距离和温度估计.

主要方法:

  • 提出了一种线性表示,通过同源矩阵将LWIR测量与场景参数连接起来.
  • 开发了一种封闭式解决方案,用于提取物体距离和温度.
  • 将校准要求降低到至少三次观察.

主要成果:

  • 展示了一种线性模型,有效地将LWIR测量与场景参数联系起来.
  • 通过封闭式溶液实现了距离和温度的同时估计.
  • 显著降低校准成本,在现实实验中至少进行三次观测.

结论:

  • 拟议的线性表示为LWIR范围提供了一种更有效,更简单的方法.
  • 该方法有效地减少了校准要求,同时保持了深度估计的高精度.
  • 这种技术有可能提高LWIR测距系统的实用性和适用性.