"It Looks Beautiful but Scary": How Low Vision People Navigate Stairs and Other Surface Level Changes
"It Looks Beautiful but Scary": How Low Vision People Navigate Stairs and Other Surface Level Changes
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DOI：
10.1145/3234695.3236359
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发表时间：
2018-10
期刊：
影响因子：
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通讯作者：
Yuhang Zhao;Elizabeth Kupferstein;Doron Tal;Shiri Azenkot
中科院分区：
文献类型：
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作者：
Yuhang Zhao;Elizabeth Kupferstein;Doron Tal;Shiri Azenkot
对于视力不佳的人来说，在有楼梯和路缘的环境中行走可能存在危险。我们试图了解低视力人群面临哪些挑战，以及他们在应对此类表面变化时使用哪些策略和工具。通过情境调查，我们采访并观察了 14 名低视力参与者，他们在两座建筑物和两个城市街区完成导航任务。这些任务包括在室内和室外行走，穿过四个楼梯和两个街区。我们发现表面水平的变化是所有参与者不确定甚至恐惧的根源。除了许多参与者不想使用的白色手杖外，参与者在研究中没有使用技术。参与者大多使用他们的视觉，这让人筋疲力尽，有时甚至具有欺骗性。我们的研究结果强调了对支持表面水平变化和其他深度感知任务的系统的需求；他们应该考虑低视力人群与盲人的不同体验、他们对不同照明条件的敏感性，并利用视觉增强技术。
Walking in environments with stairs and curbs is potentially dangerous for people with low vision. We sought to understand what challenges low vision people face and what strategies and tools they use when navigating such surface level changes. Using contextual inquiry, we interviewed and observed 14 low vision participants as they completed navigation tasks in two buildings and through two city blocks. The tasks involved walking in- and outdoors, across four staircases and two city blocks. We found that surface level changes were a source of uncertainty and even fear for all participants. Besides the white cane that many participants did not want to use, participants did not use technology in the study. Participants mostly used their vision, which was exhausting and sometimes deceptive. Our findings highlight the need for systems that support surface level changes and other depth-perception tasks; they should consider low vision people's distinct experiences from blind people, their sensitivity to different lighting conditions, and leverage visual enhancements.