[Paper] Determining the Optimum Font Size for Braille on Capsule Paper for Late Blind People

• Watanabe Tetsuya

  Faculty of Engineering, Niigata University

• Kaga Hirotsugu

  Faculty of Engineering, Niigata University Graduate School of Science and Technology, Niigata University

Abstract

To determine the optimum size of a braille font, we conducted an experiment in which a popular Japanese braille font was printed at various sizes on capsule paper and read and rated by late blind people. The results show that braille printed at 16 to 19-point sizes was read faster and rated higher than that printed at smaller or larger sizes. These optimum sizes mostly coincide with those found for young congenitally blind people. A new finding was that many reading errors that stemmed from mistaking the range of braille cells were observed at larger sizes, 20 to 22-point sizes. This means that enlarging the font size is not necessarily beneficial for late blind people and optimum sizes should be strictly selected when doing so.

Journal

• ITE Transactions on Media Technology and Applications

  ITE Transactions on Media Technology and Applications 5 (1), 2-7, 2017

  The Institute of Image Information and Television Engineers

Keywords

• Late Blind People
• Braille Font
• Capsule Paper
• Tactile Reading
• Legibility

Details

• CRID: 1390001205422963840
• NII Article ID: 130005239857
• DOI: 10.3169/mta.5.2
• ISSN: 21867364
• Web Site: https://www.jstage.jst.go.jp/article/mta/5/1/5_2/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed