IPPITSU: A one-stroke text entry method for touch panels using Braille system

In this paper the authors propose IPPITSU, an eyes-free, Braille-based text entry method for touch panels. In IPPITSU the user inputs a Braille cell by selecting the raised dot in it. In order to select the dots the user touches the regions corresponding to the raised dots by sliding the finger on the panel with one continuous stroke. IPPITSU is expected to be used by visually-impaired people. IPPITSU is implemented as an IME for Android devices and is available on Google Play.