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首页> 外文期刊>International journal of human-computer studies >Virtual navigation for blind people: Transferring route knowledge to the real-World
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Virtual navigation for blind people: Transferring route knowledge to the real-World

机译：虚拟导航为盲人：将路由知识转移到真实世界

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摘要

Independent navigation is challenging for blind people, particularly in unfamiliar environments. Navigation assistive technologies try to provide additional support by guiding users or increasing their knowledge of the surroundings, but accurate solutions are still not widely available. Based on this limitation and on the fact that spatial knowledge can also be acquired indirectly (prior to navigation), we developed an interactive virtual navigation app where users can learn unfamiliar routes before physically visiting the environment. Our main research goals are to understand the acquisition of route knowledge through smartphone-based virtual navigation and how it evolves over time; its ability to support independent, unassisted real-world navigation of short routes; and its ability to improve user performance when using an accurate in-situ navigation tool (NavCog). With these goals in mind, we conducted a user study where 14 blind participants virtually learned routes at home for three consecutive days and then physically navigated them, both unassisted and with NavCog. In virtual navigation, we analyzed the evolution of route knowledge and we found that participants were able to quickly learn shorter routes and gradually increase their knowledge in both short and long routes. In the real-world, we found that users were able to take advantage of this knowledge, acquired completely through virtual navigation, to complete unassisted navigation tasks. When using NavCog, users tend to rely on the navigation system and less on their prior knowledge and therefore virtual navigation did not significantly improve users' performance.
机译：独立导航对盲人挑战，特别是在陌生环境中。导航辅助技术试图通过指导用户提供额外的支持或增加他们对周围环境的知识，但准确的解决方案仍然没有广泛可用。基于这种限制以及空间知识也可以间接获取（在导航之前），我们开发了一个交互式虚拟导航应用程序，用户可以在物理访问环境之前学习陌生的路线。我们主要的研究目标是通过基于智能手机的虚拟导航以及其随着时间的推移而发化的方式来了解路线知识的收购;它支持独立，独立的无统一的短途旅行的能力;及其在使用准确的入住式导航工具（NavCog）时提高用户性能的能力。通过这些目标，我们考虑了一个用户学习，其中14个盲人参与者连续三天几乎在家中学习了路线，然后物理地导航，都没有归于和与NavCog。在虚拟导航中，我们分析了路由知识的演变，我们发现参与者能够快速学习较短的路线，并逐步提高他们在短途和长途路线中的知识。在真实世界中，我们发现用户能够利用这些知识，通过虚拟导航完全获取，以完成非批准的导航任务。使用NavCog时，用户倾向于依赖导航系统，并少于其先验知识，因此虚拟导航没有显着提高用户的性能。

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