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手机盲文触感阅读方法的设计与评估

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手机盲文触感阅读方法的设计与评估
Designing for Tactile Braille Reading Methods on Smartphones
投稿时间：2018-01-19
DOI：10.15918/j.tbit1001-0645.2019.02.012
中文关键词:触觉感知触觉界面盲用用户体验人机交互
English Keywords:tactile perceptiontactile interfaceblind useuser experiencehuman-computer in-teraction
基金项目:国家自然科学基金资助项目（61502415）；浙江省公益技术资助项目（2016C31G2240012）
作者单位
褚少微浙江传媒学院 新媒体学院, 浙江, 杭州 310018
朱科颖浙江传媒学院 新媒体学院, 浙江, 杭州 310018
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中文摘要:
提出了3种在智能手机上实现6点盲文触感摸读的新方法.通过对手机振动触觉反馈以及手指在屏幕上滑动的不同方向进行编码，共设计了左右滑动、向右滑动及向下滑动摸读3种方法.结合用户实验数据对3种方法的触感参数进行了优化设计.最后通过对12名用户的系统实验，对所提出的3种方法进行了可用性评估.实验结果表明3种方法平均每字符的阅读速度分别为3.62，3.16，4.09 s；准确率分别为98.1%，98.1%，96.9%；其中向右滑动的摸读方式交互效率较高，用户满意度也最好.
English Summary:
In this paper, three new methods were presented for tactile Braille reading on smart phones, including left and right sliding, sliding to the right, and sliding down. The three methods were designed based on vibrotactile feedback of mobile phone and the direction encoding of finger movements. A series of pilot studies were carried out to tune and optimize the tactile parameters. And then, twelve participants were invited to implement a formal user experiment, evaluating the usability of three methods. The experiment results show that the three methods can reach adequate speeds, in 3.62, 3.16 and 4.09 seconds for average every character. The accuracy of the gestures can reach 98.1%, 98.1% and 96.9% respectively. The method with sliding to the right gesture is the most efficient one and also the user's most satisfied one.
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