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相关概念视频

Distance Corrections01:15

Distance Corrections

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To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
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相关实验视频

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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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基于相机与像素不匹配校正和希尔伯特变换的动态3D测量.

Xingfan Chen1, Qican Zhang1, Yajun Wang1

  • 1Department of Opto-Electronics, Sichuan University, Chengdu 610065, China.

Sensors (Basel, Switzerland)
|February 13, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种通用算法,用于纠正3D测量的运动错误. 它准确地重建物体,即使是复杂的,联合运动,提高3D测量精度.

关键词:
通过3D测量进行3D测量.希尔伯特的转换变换就是动态测量是一种动态的测量.纠正像素不匹配的纠正

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科学领域:

  • 3D测量和重建 3D测量和重建
  • 计算机视觉 计算机视觉
  • 计量学 计量学 计量学

背景情况:

  • 在3D测量期间的物体运动引入了重大错误,挑战了高精度重建.
  • 现有的算法主要针对相机主轴 (Z方向) 上的运动,限制了它们在复杂的现实场景中的使用.

研究的目的:

  • 开发一种通用的运动误差补偿算法,用于在动态条件下准确的3D测量.
  • 为了解决由复杂物体运动引起的像素不匹配和相位移动错误.

主要方法:

  • 使用相邻粗的3D点云数据纠正像素不匹配错误.
  • 通过希尔伯特变换消除运动诱导的相位误差,以 π/2.2 转移边缘.
  • 同时补偿摄像头像素不匹配和相位移错误在3D坐标空间.

主要成果:

  • 该算法有效地纠正像素不匹配和相位移错误.
  • 即使使用动态和多方向物体运动,也可以实现精确的3D测量.
  • 实验验证证证实了算法的稳定性和广泛适用性.

结论:

  • 拟议的方法为3D测量中的运动误差补偿提供了一个系统的解决方案.
  • 这一进步提高了动态环境中3D重建的可靠性和精度.
  • 该算法适用于工业检查,生物医学成像和实时机器人.