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相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

424
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
424

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相关实验视频

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Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility
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基于视觉的自动识别和3D定位框架,用于使用远场摄像头的塔式起重机.

Jiyao Wang1, Qilin Zhang1, Bin Yang1

  • 1Department of Structural Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.

Sensors (Basel, Switzerland)
|July 11, 2023
PubMed
概括

本研究介绍了一种计算机视觉框架,用于使用单眼相机实时定位塔起重机和. 该系统通过从任意视图准确估计起重机方向和杆位置来提高施工安全性.

科学领域:

  • 计算机视觉 计算机视觉
  • 机器人技术 机器人技术 机器人技术
  • 建筑工程工程 建筑工程

背景情况:

  • 塔式起重机在建筑工地存在重大安全风险,因为它们的运行面积很大,有可能发生碰撞.
  • 塔式起重机和的准确,实时的定位和位置数据对于减轻这些风险至关重要.
  • 现有的基于计算机视觉 (CVB) 的本地化方法经常与地面平面的限制或特定的视角依赖性作斗争.

研究的目的:

  • 通过单眼远景摄像头,提出一个用于实时识别和3D定位塔式起重机和的新框架.
  • 为了使塔式起重机从任意的视点准确地估计位置,解决当前方法的局限性.
  • 通过精确的监测,加强建筑安全管理和生产率分析.

主要方法:

  • 一个四步框架,涉及远场摄像机自校准 (特征匹配,地平线检测).
  • 基于深度学习的细分用于塔式起重机识别和几何特征重建.
  • 使用单眼远景摄像机和任意视图进行3D定位估计和姿势估计.

主要成果:

  • 拟议的框架在估计起重机杆方向和杆位置时实现了高精度.
  • 在各种建筑工地场景上的实验验证证明了该系统的稳定性和准确性.
  • 性能与来自传感器的地面真实数据进行了比较,证实了可靠性.
关键词:
计算机视觉 计算机视觉远景摄像头的远景摄像头是什么传感系统的传感系统.三维定位定位是什么?塔式起重机 塔式起重机

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结论:

  • 开发的框架有效地解决了使用单眼远景摄像头实时塔式起重机和杆定位的挑战.
  • 从任意视图进行准确的姿势估计是一个关键的贡献,推进非侵入性安全监测.
  • 该系统在改善建筑环境中的安全管理和生产率分析方面具有重大潜力.