Loughborough Design School, Loughborough University, Leicestershire LE11 3TU, UK; Federal Ministry of Defence, Fontainengraben 150, 53123 Bonn, Germany.
Loughborough Design School, Loughborough University, Leicestershire LE11 3TU, UK.
Appl Ergon. 2018 Apr;68:90-100. doi: 10.1016/j.apergo.2017.11.001. Epub 2017 Nov 11.
Three-dimensional (3D) body scanners have the potential to evaluate changes to the human form through different clothing configurations, the use of protective equipment, or the effects of medical interventions. To achieve this, scans of an individual need to be superimposed for each experimental condition. The literature highlights that one of the limiting factors is postural variability. This paper describes a newly developed 'positioning aid' that stabilises the posture during the scanning process and is invisible on scans. The results of a study evaluating the efficacy of the positioning aid showed that it reduces postural variability for all body parts in lateral and longitudinal directions. A reference test with a rigid mannequin indicated that the 'technical' variability due to the scanner hardware and software significantly contributes to the residual variability. Furthermore, the study showed that the newly developed positioning aid overall increased the precision of the software-assisted extraction of body dimensions.
三维（3D）人体扫描仪具有通过不同的服装配置、使用防护设备或医疗干预来评估人体形态变化的潜力。为了实现这一目标，需要对每个实验条件下的个体扫描进行叠加。文献强调，其中一个限制因素是姿势变异性。本文介绍了一种新开发的“定位辅助工具”，它可以在扫描过程中稳定姿势，并且在扫描中不可见。评估定位辅助工具效果的研究结果表明，它减少了所有身体部位在横向和纵向方向上的姿势变异性。使用刚性人体模型进行的参考测试表明，由于扫描仪硬件和软件引起的“技术”变异性对残余变异性有显著影响。此外，该研究表明，新开发的定位辅助工具总体上提高了软件辅助提取身体尺寸的精度。
