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相关概念视频

Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

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Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
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Distance Measurements by Taping01:18

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Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
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Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
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Relative Motion Analysis using Rotating Axes01:25

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Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
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相关实验视频

Updated: Jul 18, 2025

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
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基于特征补偿的动态3D测量,没有运动工件.

Guoce Hu1, Jun Wang2, Huaxia Deng3

  • 1School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China.

Sensors (Basel, Switzerland)
|August 26, 2023
PubMed
概括
此摘要是机器生成的。

阶段转移造型测量 (PSP) 现在可以准确地测量移动的物体. 这种新方法减少了运动工件,改善了动态应用的3D表面测量精度.

关键词:
错误补偿 错误补偿 错误补偿 错误补偿运动文物 运动文物阶段转移特征测定 阶段转移特征测定三维重建的三维重建

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 计量学 计量学 计量学
  • 计算机视觉 计算机视觉

背景情况:

  • 阶段转移造型测量 (PSP) 对于高精度的3D形状测量至关重要.
  • 使用PSP测量移动物体具有挑战性,因为运动诱导的工件会影响精度.

研究的目的:

  • 开发和验证一种新的方法来减少PSP中的运动工件.
  • 为了提高动态物体3D表面测量的精度.

主要方法:

  • 提出了一种利用图像特征信息来减轻运动工件的新方法.
  • 模拟使用六步相位移方法作为案例研究进行.
  • 实验验证涉及320 Hz的铜管振动测试.

主要成果:

  • 模拟证实了移动物体的显著相位变化.
  • 提出的方法有效地减少了物体运动引起的相位移.
  • 实验结果表明成功实施和优化文物.

结论:

  • 开发的方法显著提高了移动物体3D测量的精度.
  • 该技术解决了用于动态场景的相位移概况测量的关键局限性.
  • 这些发现适用于需要精确测量移动表面的各种领域.