Finger Braille Teaching System
Yasuhiro Matsuda, Tsuneshi Isomur · Sciyo eBooks · 2010
In this chapter, we developed the Finger Braille teaching system and designed a teaching interface that teaches clauses explicitly. An evaluation experiment between a blind receiver who was skilled in Finger Braille and two non-disabled senders who were unskilled in Finger Braille was conducted. For the accuracy of fundamental functions, Correct Ratio was 94.4%, except for the substitution of interjections. The accuracy of the conversion to Braille code was 99.6%. The accuracy of clause segmentation was 95.1%. The error ratio of dotting by the senders was only 1.2% of all of the characters. The dotting speed was 48.3 characters/min and the total communication speed was 23.1 characters/min. The results show that the fundamental functions are practicable; the non-disabled senders could dot Finger Braille accurately and communicate with the blind receiver directly. Therefore, it was considered that the teaching system was effective.