一种供视障人士使用的可穿戴系统。
A wearable system for the visually impaired.
作者信息
Pradeep Vivek, Medioni Gerard, Weiland James
机构信息
University of Southern California, Los Angeles, CA 90089, USA.
出版信息
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:6233-6. doi: 10.1109/IEMBS.2010.5627715.
We present a light-weight, cheap and low-power, wearable system for assisting the visually impaired in performing routine mobility tasks. Our system extends the range of the white cane by providing the user with vibro-tactile cues corresponding to the location of obstacles and a safe path for traversal through a cluttered environment. The presented approach keeps cognitive load to a minimum, and while being autonomous, adapts to the changing mobility requirements of a navigating user. In this paper, we provide an overview of the hardware and algorithmic components of our system, and show results of pilot studies with human test subjects. Our system operates at 20Hz, and significantly improves mobility performance compared to using only the white cane.
我们展示了一种轻便、廉价且低功耗的可穿戴系统，用于协助视障人士执行日常移动任务。我们的系统通过为用户提供与障碍物位置相对应的振动触觉提示以及在杂乱环境中通行的安全路径，扩展了白手杖的功能范围。所提出的方法将认知负荷降至最低，并且在自主运行的同时，能够适应导航用户不断变化的移动需求。在本文中，我们概述了系统的硬件和算法组件，并展示了针对人类测试对象的初步研究结果。我们的系统以20Hz运行，与仅使用白手杖相比，显著提高了移动性能。
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