Slide-Tone and Tilt-Tone: 1-DOF Haptic Techniques for Conveying Shape Characteristics of Graphs to Blind Users

Slide-Tone and Tilt-Tone: 1-DOF Haptic Techniques for Conveying Shape Characteristics of Graphs to Blind Users
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Slide-Tone 和 Tilt-Tone:向盲人用户传达图形形状特征的 1-DOF 触觉技术

DOI:
10.1145/3491102.3517790
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发表时间:
2022
期刊:
CHI '22: CHI Conference on Human Factors in Computing Systems
影响因子:
--
通讯作者:
Follmer, Sean
Follmer, Sean
中科院分区:
--
文献类型:
--
作者:
Fan, Danyang;Siu, Alexa Fay;Law, Wing-Sum Adrienne;Zhen, Raymond Ruihong;O'Modhrain, Sile;Follmer, Sean

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我们越来越依赖最新的数据驱动图来了解我们的环境并做出明智的决策。然而,盲人和视障用户(BVI)依赖于访问数据驱动信息的许多方法不传达图形的重要形状特征,不可刷新,或者过于昂贵。为了解决这些限制,我们引入了两个可刷新的,1-DOF的音频触觉接口的基础上触觉线索的物体形状感知。滑动音使用手指位置和声音,倾斜音使用指垫接触倾斜和声音,为用户提供形状反馈。通过形成性设计研讨会(n = 3)和控制评估(n = 8),我们发现,BVI参与者赞赏额外的形状信息,多功能性,并加强这些接口提供的理解;和任务的准确性是使用交互式触觉图形或单独发声。我们的研究深入了解了将这些触觉提示应用到数据可视化环境中的好处、局限性和考虑因素。
We increasingly rely on up-to-date, data-driven graphs to understand our environments and make informed decisions. However, many of the methods blind and visually impaired users (BVI) rely on to access data-driven information do not convey important shape-characteristics of graphs, are not refreshable, or are prohibitively expensive. To address these limitations, we introduce two refreshable, 1-DOF audio-haptic interfaces based on haptic cues fundamental to object shape perception. Slide-tone uses finger position with sonification, and Tilt-tone uses fingerpad contact inclination with sonification to provide shape feedback to users. Through formative design workshops (n = 3) and controlled evaluations (n = 8), we found that BVI participants appreciated the additional shape information, versatility, and reinforced understanding these interfaces provide; and that task accuracy was comparable to using interactive tactile graphics or sonification alone. Our research offers insight into the benefits, limitations, and considerations for adopting these haptic cues into a data visualization context.
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