An augmented reality system for large outdoor interactive experiences

用于大型户外互动体验的增强现实系统

• 批准号: 453191-2013
• 负责人: Hogue, Andrew
• 金额: $ 1.82万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=541350
• 关键词: augmented; reality; system; large; outdoor

AWE Company Ltd. has been contracted to supply the technology for an Augmented/Mixed Reality tour of the entire grounds of Fort York historical site. They currently have the ability to create indoor AR experiences demonstrated by their success at creating a cutting-edge AR experience at Fort York. Expanding from a single indoor environment capable of five users to a highly dynamic outdoor AR experience capable of up to 60 users is a significant and necessary challenge for AWE. Their current solutions rely on an accurate magnetic tracking system used to determine the position and orientation of their mobile devices. This tracking technology is infeasible to expand to large outdoor spaces thus they require an alternate solution relying solely on on-board mobile sensors. With existing techniques and off-the-shelf components, image-based AR/MR systems do not work effectively in large outdoor spaces. The main concerns with these spaces are (1) highly dynamic lighting and appearance due to weather conditions and seasonal effects, (2) tourist attractions have tourists walking throughout the scene causing problems with camera pose tracking, and (3) robust localization in GPS-denied locations with large amounts of radio-frequency noise. Thus any solution to this problem should rely solely on computer vision techniques. In this project, we will develop an AR/MR solution that leverages and extends existing mapping/tracking algorithms in new ways to solve this real-world problem robustly. Advances in this area will not only benefit this project but will have wide application in all outdoor computer vision scenarios. We will be developing the first completely image-based system that merges mapping and AR in a real-world dynamic outdoor environment without the aid of GPS or RF based location on low-power mobile devices. Also, the tracking/localization system developed will be robust to both changes in appearance due to seasonal changes (i.e. snow in the winter, rainy, and bright summer days) and be able to track effectively in the presence of moving people. This will require the development of methods to adapt feature descriptions over time and methods to identify moving objects.

AWE有限公司已签订合同，为约克堡历史遗址的整个场地提供增强/混合现实旅游技术。 他们目前有能力创造室内AR体验，这一点从他们在约克堡成功创造尖端AR体验中得到了证明。从能够容纳5名用户的单一室内环境扩展到能够容纳多达60名用户的高度动态的室外AR体验，是AWE面临的一个重大而必要的挑战。 他们目前的解决方案依赖于一个精确的磁跟踪系统，用于确定他们的移动的设备的位置和方向。这种跟踪技术无法扩展到大型室外空间，因此需要一种仅依赖于车载移动的传感器的替代解决方案。 利用现有的技术和现成的组件，基于图像的AR/MR系统在大型室外空间中不能有效地工作。 这些空间的主要问题是（1）由于天气条件和季节性影响，高度动态的照明和外观，（2）旅游景点有游客在整个场景中行走，导致相机姿势跟踪问题，以及（3）在GPS拒绝的位置具有大量射频噪声的鲁棒定位。因此，解决这个问题的任何方法都应该完全依赖于计算机视觉技术。在本项目中，我们将开发一种AR/MR解决方案，以新的方式利用和扩展现有的映射/跟踪算法，以稳健地解决这个现实世界的问题。这一领域的进步不仅有利于该项目，而且将在所有户外计算机视觉场景中得到广泛应用。 我们将开发第一个完全基于图像的系统，该系统将地图和AR融合在真实世界的动态户外环境中，而无需借助低功耗移动的设备上的GPS或基于RF的定位。此外，开发的跟踪/定位系统将对由于季节变化（即冬季下雪，下雨和明亮的夏天）引起的外观变化具有鲁棒性，并且能够在移动的人存在的情况下有效地跟踪。 这将需要制定方法，使特征描述随着时间的推移而调整，并制定方法来识别移动物体。