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

机译:为弱视人群设计和评估可定制的头戴式视觉增强系统

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Recent advances in head-mounted displays (HMDs) present an opportunity to design vision enhancement systems for people with low 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 designed ForeSee, 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.
机译:头戴式显示器(HMD)的最新进展为为视力不佳的人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来矫正。我们旨在了解HMD是否以及如何在日常生活中帮助弱视人群。我们设计了ForeSee,这是一种HMD原型,可以通过放大和边缘增强等图像处理技术来增强人们的视野。我们评估了20位低视力参与者的视力增强情况,这些参与者执行了四个观看任务:图像识别和近距离和远距离阅读任务。我们发现参与者需要组合和调整增强功能以​​舒适地完成观看任务。然后,我们设计了两种输入模式以实现快速,轻松的自定义:语音命令和基于智能手表的手势。尽管语音命令通常用于无眼输入,但我们在智能手表上使用的新颖的屏幕手势集可用于语音不适当或不需要的场景。我们用11位弱视参与者评估了两种输入模式,发现这两种模式有效地使弱视用户能够在HMD上自定义其视觉体验。我们为低视力摘录了HMD应用的设计见解,并激发了新的研究方向。

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