Designing and Evaluating a Customizable Head-mounted Vision Enhancement System for People with Low Vision

Designing and Evaluating a Customizable Head-mounted Vision Enhancement System for People with Low Vision
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为低视力人士设计和评估可定制的头戴式视力增强系统

DOI:
10.1145/3361866
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发表时间:
2020
影响因子:
2.4
通讯作者:
Azenkot, Shiri
Azenkot, Shiri
中科院分区:
--
文献类型:
--
作者:
Zhao, Yuhang;Szpiro, Sarit;Shi, Lei;Azenkot, Shiri

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头戴式显示器(HMD)的最新进展为低视力人群设计视力增强系统提供了机会,这些人的视力无法通过眼镜或隐形眼镜进行矫正。我们的目标是了解HMD是否以及如何在日常生活中帮助低视力人群。我们设计了ForeSee,这是一个HMD原型,它通过放大和边缘增强等图像处理技术增强了人们对世界的看法。我们评估了这些视力增强与20低视力参与者谁执行四个观看任务:图像识别和阅读任务,从近距离和远距离。我们发现参与者需要联合收割机并调整增强功能才能轻松完成观看任务。然后,我们设计了两种输入模式,以实现快速轻松的定制:语音命令和基于智能手表的手势。虽然语音命令通常用于无眼输入,但我们在智能手表上的一组新颖的手势可以用于语音不合适或不需要的场景。我们评估了11名低视力参与者的两种输入模式,发现这两种模式都有效地使低视力用户能够在HMD上定制他们的视觉体验。我们为低视力HMD应用提取设计见解,并激发新的研究方向。
Recent advances in head-mounted displays (HMDs) present an opportunity to design vision enhancement systems for people withlow vision, whose vision cannot be corrected with glasses or contact lenses. We aim to understand whether and how HMDs can aid low vision people in their daily lives. We designedForeSee, an HMD prototype that enhances people’s view of the world with image processing techniques such as magnification and edge enhancement. We evaluated these vision enhancements with 20 low vision participants who performed four viewing tasks: image recognition and reading tasks from near- and far-distance. We found that participants needed to combine and adjust the enhancements to comfortably complete the viewing tasks. We then designed two input modes to enable fast and easy customization: speech commands and smartwatch-based gestures. While speech commands are commonly used for eyes-free input, our novel set of onscreen gestures on a smartwatch can be used in scenarios where speech is not appropriate or desired. We evaluated both input modes with 11 low vision participants and found that both modes effectively enabled low vision users to customize their visual experience on the HMD. We distill design insights for HMD applications for low vision and spur new research directions.
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