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由同类网格中的固定顶点识别的解剖学标志的定位错误

Ana V Ruescas-Nicolau¹, Helios De Rosario¹, Eduardo Parrilla Bernabé¹

¹Instituto de Biomecánica - IBV. Universitat Politècnica de València, edifici 9C. Camí de Vera, s/n 46022 València, Spain.

|December 20, 2023

概括

这项研究表明,同质的网状顶点可以准确地识别人体运动分析的解剖学地标. 这些无标记物方法的准确性与手动触摸相提并论,错误受到身体指标的影响.

科学领域:

生物机械分析分析
人类运动捕捉器
医学成像医学成像

背景情况:

基于标记器的摄影计是人类运动分析的标准,但有局限性.
无标记运动分析缺乏与手动触摸相比的准确性.
三维时空扫描仪提供同源网格,以改善无标记分析.

研究的目的:

为了确定同类的网状顶点是否可以识别解剖学地标,准确度相当于手动触摸.
评估主体特征对地标识别准确性的影响.

主要方法:

从CAESAR数据集中利用了3165个人形扫描,并标记了解剖学地标.
将模板网格安装到扫描中,将顶点分配给53个解剖学地标.
定义了名义顶点和计算错误,分析了与性别,身高和BMI的关系.

主要成果:

模板装配错误小于5毫米;名义顶点测定错误达到了24毫米.
对于大多数下肢标志,错误与手动触摸间检查员错误相当或小于手动触摸间检查员错误.
错误随身高和BMI的增加而增加,男性的错误比女性更小,身体指标相似.

结论:

在同质网格中,一组顶点可以定位53个解剖学地标,其错误与大多数地标的手动触摸相比较.
对象的性别和人体特征显著影响着标志性识别错误的大小.

关键词:

通过3D扫描扫描.里程碑位置错误里程碑位置错误无标记的运动捕捉.

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