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
复制标题
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:
影响因子:
--
通讯作者:
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
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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