Indoor Navigation Validation Framework for Visually Impaired Users
Indoor Navigation Validation Framework for Visually Impaired Users
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DOI：
10.1109/access.2017.2761698
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发表时间：
2017-10
期刊：
影响因子：
3.9
通讯作者：
Yang Tao;Linlin Ding;A. Ganz
中科院分区：
文献类型：
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作者：
Yang Tao;Linlin Ding;A. Ganz
在本文中，我们介绍了盲人和视障（BVI）用户室内导航系统的第一个验证框架，这是为BVI用户开发具有成本效益的室内寻路解决方案的重要一步。英属维尔京群岛用户需要详细的基于地标的导航说明，以帮助他们独立到达选定的目的地。这些用户将使用可访问的用户界面与智能手机上的导航指令进行交互。验证框架包括以下三个主要组成部分：1)基于虚拟现实的仿真，模拟BVI用户穿越物理环境并与物理环境交互，使用Unity游戏引擎开发；2)生成模拟虚拟环境中角色运动的动作代码，使用导航指令的自然语言处理解析器进行开发；3)可访问的用户界面，使用户能够访问导航指令，使用四库里脚本库开发。我们介绍了一个案例研究，说明了使用感知系统验证工具的使用。我们坚信，我们在本文中提供的验证框架将鼓励其他开发者为BVI用户发明室内导航系统。此外，我们想提到的是，这个工具是验证室内导航系统的第一步，之后应该进行人体试验。
In this paper, we introduce the first validation framework of an indoor navigation system for blind and visually impaired (BVI) users, which is a significant step toward the development of cost effective indoor way-finding solutions for BVI users. The BVI users require detailed landmark-based navigation instructions that will help them arrive at the chosen destination independently. These users will interact with the navigation instructions on a smartphone using an accessible user interface. The validation framework includes the following three main components: 1) virtual reality-based simulation that simulates a BVI user traversing and interacting with the physical environment, developed using Unity game engine; 2) generation of action codes that emulate the avatar movement in the virtual environment, developed using a natural language processing parser of the navigation instructions; and 3) accessible user interface, which enables the user to access the navigation instructions, developed using Sikuli script library. We introduce a case study that illustrates the use of the validation tool using PERCEPT system. It is our strong belief that the validation framework we provide in this paper will encourage other developers to invent indoor navigation systems for BVI users. In addition, we would like to mention that this tool is the first step of validating an indoor navigation system and should be followed by trials with human subjects.