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相关概念视频

Rolling Resistance: Problem Solving01:17

Rolling Resistance: Problem Solving

766
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
766

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相关实验视频

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Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment
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人工智能驱动的滑动检测用于使用视觉变压器更智能地测试鞋类.

Shaghayegh Chavoshian, Ali Barzegar Khanghah, Atena Roshan Fekr

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 3, 2025
    PubMed
    概括

    本研究介绍了一种人工智能驱动的系统,用于鞋类测试中的自动滑动检测. 多尺度视觉转换器版本2 (MViTv2) 模型显著提高了冬季鞋类抗滑性评估的准确性和一致性.

    科学领域:

    • 生物力学和人类运动分析
    • 安全工程中的人工智能
    • 材料科学和鞋类技术 材料科学和鞋类技术

    背景情况:

    • 滑倒和跌倒是主要的健康问题,导致伤害和增加医疗保健费用,特别是在冰面上.
    • 目前的鞋类防滑测试依赖于人类观察,引入不一致性和主观偏见.
    • 开发可靠的防滑鞋子对于防止在危险的冬季条件下摔倒至关重要.

    研究的目的:

    • 加强鞋类防滑测试协议,以提高准确性,可靠性和一致性.
    • 引入使用人工智能 (AI) 的新型自动滑动检测系统,以减轻人类观测错误.
    • 评估人工智能模型在评估防滑性能方面的表现,特别是冬季鞋类.

    主要方法:

    • 开发了一个使用人工智能的自动滑动检测系统,特别是使用预训练的神经网络转移学习:膨胀的3D ConvNets (I3D) 和多尺度视觉转换器版本2 (MViTv2).
    • 在410个行走试验中训练模型,在一个有控制的冰的行走道上,倾斜角度各不相同,包括滑动和非滑动事件.
    • 使用5倍和离开一个主体 (LOSO) 交叉验证技术评估模型性能.

    主要成果:

    • 多尺度视觉转换器版本2 (MViTv2) 模型表现出卓越的性能,平均精度为90.49% ± 2.93% (5-Fold) 和88.80% ± 4.82% (LOSO).

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  • MViTv2在滑动检测性能上显示出较大的一致性,与膨胀3D运输网 (I3D) 模型相比.
  • 虽然I3D和MViTv2之间的性能差异在统计学上并不显著,但MViTv2始终优于I3D.

    • 结论:

    • 基于视频的AI模型,特别是像MViTv2这样的视觉变压器,显示出精确自动化鞋类滑动检测的巨大潜力.
    • 将基于人工智能的滑动检测集成到鞋类测试协议中,可以带来更可靠的抗滑性评估.
    • 这种进步可以有助于改进防摔策略,降低医疗保健成本,提高在冰冷环境中的流动性.