Comparing Computer-Based Drawing Methods for Blind People with Real-Time Tactile Feedback

論文URL:http://dl.acm.org/citation.cfm?doid=3173574.3173689

論文アブストラクト:In this paper, we present a drawing workstation for blind people using a two-dimensional tactile pin-matrix display for in- and output. Four different input modalities, namely menu-based, gesture-based, freehand-stylus and a Time-of-Flight (ToF) depth segmentation of real-world object silhouettes, are utilized to create graphical shapes. Users can freely manipulate shapes after creation. Twelve blind users evaluated and compared the four image creation modalities. During evaluation, participants had to copy four different images. The results show that all modalities are highly appropriate for non-visual drawing tasks. There is no generally preferred drawing modality, but most participants rated the robust and well-known menu-based interaction as very good. Furthermore, menu was second in performance and the most accurate drawing modality. Our evaluation demonstrated direct manipulation works well for blind users at the position of the reading hand. In general, our drawing tool allows blind users to create appealing images.

日本語のまとめ:

視覚障害者のための触覚フィードバックを用いた2D-CADツールを開発した。60x104のピンからなるディスプレイによって書いた線を確認できる。基本図形の組み合わせ、ジェスチャ、ペン、ブロックのような実物体、の4種による入力が可能。

(115文字)

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