论文标题
在各种感觉环境中的虚拟障碍课程
A Virtual Obstacle Course within Diverse Sensory Environments
论文作者
论文摘要
我们开发了一个新颖的评估平台，具有不受限制的虚拟现实，三维声音和压力感应地板垫，以帮助评估障碍物的步行平衡和谈判，并考虑到不同的感觉负荷和/或认知负荷。该平台提供了一个具有预期/意外的虚拟障碍的身临其境的3D城市式场景。参与者通过扰动来协商障碍：通过空间音频进行听觉负载，记忆任务的认知负载以及由头像运动以各种数量和速度生成的视觉流程。 VR耳机显示场景，同时提供参与者头的实时位置和方向。压力感应人行道会感觉到脚压力，并在热图中可视化。该系统有助于通过每英尺的压力动态，越过障碍的成功率，可用的响应时间以及对障碍和多任务处理的头部运动学来评估步行平衡。根据评估，可以规定特定的平衡培训和秋季预防计划。
We developed a novel assessment platform with untethered virtual reality, 3-dimensional sounds, and pressure sensing floor mat to help assess the walking balance and negotiation of obstacles given diverse sensory load and/or cognitive load. The platform provides an immersive 3D city-like scene with anticipated/unanticipated virtual obstacles. Participants negotiate the obstacles with perturbations of: auditory load by spatial audio, cognitive load by a memory task, and visual flow by generated by avatars movements at various amounts and speeds. A VR headset displays the scenes while providing real-time position and orientation of the participant's head. A pressure-sensing walkway senses foot pressure and visualizes it in a heatmap. The system helps to assess walking balance via pressure dynamics per foot, success rate of crossing obstacles, available response time as well as head kinematics in response to obstacles and multitasking. Based on the assessment, specific balance training and fall prevention program can be prescribed.
