Girau Elisa, Mura Fabrizio, Bazurro Simone, Casadio Maura, Chirico Marco, Solari Fabio, Chessa Manuela
Annu Int Conf IEEE Eng Med Biol Soc. 2019 Jul;2019:5690-5695. doi: 10.1109/EMBC.2019.8856777.
Simulation is a powerful learning tool, as it allows gaining direct experience in a controlled and repeatable way. However, the simulation is effective when it is able to reproduce the real conditions and when the user feels him/herself immersed and present in the situation. With the aim of improving these critical points, we propose an immersive virtual reality system for first-aid handling. Specifically, we increase the visual realism of medical mannequins and the contextualization, and we add the touch feedback by mapping the real mannequin into its virtual representation. Moreover, the interaction is performed by using a virtual representation of the users own hands by allowing a more realistic execution of tasks. The results show a good accuracy in the mapping between the real and the virtual mannequin, and a high degree of presence for both the control group and the medical one. These results and the low values of simulator sickness reported during the experiment are a good starting point for the use of the proposed mixed reality system in simulation scenarios.
模拟是一种强大的学习工具，因为它能让人们以可控且可重复的方式获得直接经验。然而，只有当模拟能够再现真实场景且用户感觉自己沉浸其中时，模拟才是有效的。为了改进这些关键点，我们提出了一种用于急救处理的沉浸式虚拟现实系统。具体而言，我们增强了医学模拟人的视觉真实感和情境化，并通过将真实模拟人映射到其虚拟表示中增加了触觉反馈。此外，通过使用用户自己手部的虚拟表示来进行交互，从而使任务执行更加逼真。结果表明，真实模拟人和虚拟模拟人之间的映射具有良好的准确性，并且对照组和医学组都具有高度的沉浸感。这些结果以及实验过程中报告的较低模拟器不适值，是在所提出的混合现实系统用于模拟场景时的一个良好起点。
