Towards Enabling Blind People to Fill Out Paper Forms with a Wearable Smartphone Assistant.
Towards Enabling Blind People to Fill Out Paper Forms with a Wearable Smartphone Assistant.
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DOI：
10.20380/gi2021.18
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发表时间：
2021-05
期刊：
影响因子：
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通讯作者：
Ramakrishnan IV
中科院分区：
文献类型：
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作者：
Feiz S;Borodin A;Bi X;Ramakrishnan IV
我们推出了PaperPal，这是一款可穿戴的智能手机助手，盲人可以使用它独立填写纸质表格。PaperPal的独特功能包括：新颖的3D打印附件，可以将传统智能手机转变为具有可调节相机角度的可穿戴设备；能够在平板固定桌子和便携式剪贴板上工作；对纸和笔的实时视频跟踪与一个界面相耦合，该界面可生成实时音频读出的表单文本内容和指导用户进入表单字段的说明；以及支持在没有签名指南的情况下填写这些字段。本文主要关注PaperPal的一个基本方面，即PaperPal的可穿戴元素的无障碍设计，以及为盲人填写纸质表单而设计、实现和评估的新型用户界面。PaperPal有别于最近开发的一款基于智能手机的盲人填写表格助手，该助手需要将智能手机和纸张放在固定的桌子上，需要签名指南来填写表格，并且没有表格文本内容的音频读出。PaperPal的设计灵感来自一项针对盲人参与者的独立盎司向导研究，该公司在8名盲人用户中进行了评估。结果表明，它们可以在正确的位置填写表单域，准确率达到96.7%。
We present PaperPal, a wearable smartphone assistant which blind people can use to fill out paper forms independently. Unique features of PaperPal include: a novel 3D-printed attachment that transforms a conventional smartphone into a wearable device with adjustable camera angle; capability to work on both flat stationary tables and portable clipboards; real-time video tracking of pen and paper which is coupled to an interface that generates real-time audio read outs of the form’s text content and instructions to guide the user to the form fields; and support for filling out these fields without signature guides. The paper primarily focuses on an essential aspect of PaperPal, namely an accessible design of the wearable elements of PaperPal and the design, implementation and evaluation of a novel user interface for the filling of paper forms by blind people. PaperPal distinguishes itself from a recent work on smartphone-based assistant for blind people for filling paper forms that requires the smartphone and the paper to be placed on a stationary desk, needs the signature guide for form filling, and has no audio read outs of the form’s text content. PaperPal, whose design was informed by a separate wizard-of-oz study with blind participants, was evaluated with 8 blind users. Results indicate that they can fill out form fields at the correct locations with an accuracy reaching 96.7%.