Backcountry skiing is an activity where a group of skiers navigate challenging environmental conditions to ski outside of managed areas. This activity requires careful monitoring and effective communication around the current weather and terrain conditions to ensure skier safety. We aim to support and facilitate this communication by providing backcountry guides with a set of in situ spatial annotation tools to communicate hazards and appropriate speeds to the ski recreationalists. A guide can use a tablet application to annotate a photogrammetry-based map of a mountainside, for example, one collected using a commercial camera drone, with hazard points, slow-down zones, and safe zones. These annotations are communicated to the skiers via visual overlays in augmented reality heads-up displays. We present a prototype consisting of a web application and a virtual reality display that mirror the guide's and skier's perspectives, enabling participatory interaction design studies in a safe environment.

翻译：野外滑雪是一项滑雪者在非管理区域外滑雪时需要应对复杂环境条件的团体活动。该活动要求对当前天气和地形状况进行仔细监测与有效沟通，以确保滑雪者安全。我们旨在通过为野外向导提供一套原地空间标注工具来支持并促进此类沟通，使向导能够向休闲滑雪者传达危险区域与适宜速度信息。向导可使用平板应用程序在基于摄影测量的山坡地图（例如使用商用摄像无人机采集的地图）上标注危险点、减速区域和安全区域。这些标注通过增强现实平视显示器中的视觉叠加层传达给滑雪者。我们开发了一个由网络应用和虚拟现实显示组成的原型系统，该系统可镜像呈现向导与滑雪者的视角，从而在安全环境中实现参与式交互设计研究。