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相关概念视频

Tactile and Chemical Senses01:27

Tactile and Chemical Senses

Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...

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相关实验视频

Updated: Jul 2, 2026

Eye Tracking Young Children with Autism
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头部跟踪使用光学软触觉传感表面.

Bhoomika Gandhi1, Lyudmila Mihaylova1, Sanja Dogramadzi1

  • 1School of Electrical and Electronic Engineering, The University of Sheffield, Sheffield, United Kingdom.

Frontiers in robotics and AI
|July 24, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种光学触觉传感器,使用纤维镜来跟踪人类头部运动,这对于放射治疗至关重要. 使用卢卡斯-卡纳德算法的灰度图像处理显示了准确的运动检测有希望的结果.

关键词:
头和子的头部和子.运动跟踪 运动跟踪光学流的光学流量辐射疗法 辐射疗法触觉感应是一种触觉感应.

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科学领域:

  • 机器人和自动化 机器人和自动化
  • 生物医学工程 生物医学工程
  • 计算机视觉 计算机视觉

背景情况:

  • 传统的运动捕捉系统通常依赖于外部摄像头,这可能是繁的,容易受到干扰.
  • 触觉感应在基于机器人反的交互中提供了优势,模仿人类皮肤的感觉能力.
  • 现有的机器人抓手已经利用摄像头进行触觉感应,但与电磁干扰的兼容性仍然是一个挑战.

研究的目的:

  • 提出和评估一种用于跟踪人类头部运动的新型光学触觉传感器.
  • 评估传感器适用于放射治疗等应用,其中电磁兼容性至关重要.
  • 为了比较运动跟踪精度的图像处理技术.

主要方法:

  • 实现纤维镜作为传统相机的非金属替代品,用于光学触觉传感.
  • 在两个自由度的运动跟踪分析 (在z轴上的翻译,在y轴周围的旋转) 使用机器人手臂进行地面真相.
  • 通过OpenCV比较灰度和二进制图像处理与确定性运动跟踪算法 (卢卡斯-卡纳德光流,简单的斑块检测).

主要成果:

  • 基于纤维镜的传感器展示了在物理接触中追踪运动的能力,为外部摄像头系统提供了替代方案.
  • 与卢卡斯-卡纳德算法相结合的灰度图像处理与其他测试方法相比,产生了优越的运动跟踪性能.
  • 通过使用机器人操作系统工具对传感器数据和地面真实值进行时间同步,可以获得准确的结果.

结论:

  • 拟议的光学触觉传感器,利用纤维镜,显示了精确的人类头部运动检测的潜力,特别是在电磁敏感环境中.
  • 在这种触觉感应应用中,灰度图像处理和卢卡斯-卡纳德算法对运动估计非常有效.
  • 需要进一步的研究来提高更广泛的临床和机器人应用的跟踪精度.