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A smartphone-based virtual white cane

机译：基于智能手机的虚拟白手杖

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摘要

The objective of our research was to develop assistive technology for visually impaired people, with a high appreciation for the human potential to achieve, to learn, and to achieve goals. In this document, we describe a virtual white cane made of a combination of a Smartphone and a laser pointer. In our device, the laser pointer beam reflection is captured by the Smartphone camera. The distance from the virtual white cane to the reflection is computed through active triangulation. Then, a personalized vibration, the magnitude of which corresponds to distance, is generated in the Smartphone. In this way, the users receive information that could prevent collisions with obstacles in the environment. Our contributions include the development of a virtual white cane around a Smartphone and other off-the-shelf accessories and a methodology to provide personalized vibratory feedback to the user. Our experiments show that to navigate, our instrument is better option, in terms of travel time, that the use of the hands. However, the travel time is still better using a traditional white cane than our instrument.
机译：我们研究的目的是为视障人士开发辅助技术，并对人类实现，学习和实现目标的潜力高度赞赏。在本文档中，我们描述了由智能手机和激光笔组合而成的虚拟白手杖。在我们的设备中，激光指示器光束的反射由智能手机相机捕获。从虚拟白手杖到反射的距离是通过主动三角测量来计算的。然后，在智能手机中生成个性化振动，其大小与距离相对应。以这种方式，用户接收到可以防止与环境中的障碍物碰撞的信息。我们的贡献包括围绕智能手机和其他现成配件开发虚拟白手杖，以及为用户提供个性化振动反馈的方法。我们的实验表明，就导航时间而言，导航是更好的选择，即使用双手。但是，使用传统的白蔗比使用我们的仪器，旅行时间仍然更好。

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