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Research of Braille Reading Method using Pressure Sensor

Research Project

Project/Area Number 19K12917
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90150:Medical assistive technology-related
Research InstitutionNagano National College of Technology

Principal Investigator

Ito Shoichi  長野工業高等専門学校, 情報エレクトロニクス系, 教授 (10369978)

Co-Investigator(Kenkyū-buntansha) 藤澤 義範  長野工業高等専門学校, 電子情報工学科, 教授 (00342494)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords点字 / ウェアラブルデバイス
Outline of Research at the Start

我々は点字を指でなぞっただけで読み上げてくれる装置を作ることを目指しています。その要素技術の一つとして、本研究では、圧力を検知するセンサを指先にとりつけて点字をなぞったときの信号を処理し、点の配置をコンピュータ上で正確に処理する手法を確立します。

Outline of Final Research Achievements

Braille is a writing system for the visually impaired, but many of the visually impaired cannot read it. We are developing a wearable device that reads Braille when the user traces Braille text with a pressure sensor attached to their fingertip. In this study, we worked on improving the reading accuracy of the system that reconstructs and translates pressure data into Braille. We studied not only a reading algorithm that directly converts pressure data into Braille text but also a spell corrector system that is specialized for Braille. It corrects wrong pressure data into correct Braille words.
The previous version of the pressure sensor has bonded onto a 15 cm square circuit board that is not to be used for reading Braille directly. We developed a new handy scanner-type pressure sensor.

Academic Significance and Societal Importance of the Research Achievements

本研究は点字を指でなぞるという自然な動作のみで点字をコンピュータに取り込む処理を目指すものである。コンピュータに取り込まれた点字は自動翻訳されて音声として視覚障害者の耳に届けられる。本研究を推し進めることにより、点字を読むことのできない視覚障害者でも点字を読んで身の回りの情報を入手することができる道を拓くことにつなげられる。視覚障害者に代わって機械が点字を読んでくれるのであれば、他人に知られたくない私的な情報も晴眼者に読んでもらう必要が無くなり、視覚障害者が一人で活動できる場を拡げ、生活品質の向上に寄与できる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Wearable Braille Reader2021

    • Author(s)
      Nanami Haga and Shoichi Ito
    • Journal Title

      Proceedings of 2021 IEEE 10th Global Conference on Consumer Electronics

      Volume: 1 Pages: 77-80

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of Wearable Braille Reader2021

    • Author(s)
      Akiha Yanagisawa and Shoichi Ito
    • Journal Title

      The 14th International Symposium on Advances in Technology Education (ISATE2021)

      Volume: 3 Pages: 18-21

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] ウェアラブル点字リーダーの開発2021

    • Author(s)
      伊藤祥一・藤澤義範
    • Journal Title

      Japan ATフォーラム2021 in Toyama講演論文集

      Volume: 1 Pages: 19-20

    • NAID

      170000165034

    • Related Report
      2021 Research-status Report
  • [Journal Article] Tender --- Smartphone Application for Braille Reading2019

    • Author(s)
      Shoichi Ito and Yoshinori Fujisawa
    • Journal Title

      Proceedings of the 7th ACIS International Conference on Applied Computing & Information Technology

      Volume: 13 Pages: 1-6

    • DOI

      10.1145/3325291.3325368

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Wearable Braille Reader2021

    • Author(s)
      Nanami Haga and Shoichi Ito
    • Organizer
      2021 IEEE 10th Global Conference on Consumer Electronics (GCCE 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ウェアラブル点字リーダーの開発2021

    • Author(s)
      伊藤祥一・藤澤義範
    • Organizer
      Japan ATフォーラム2021 in Toyama
    • Related Report
      2021 Research-status Report
  • [Presentation] Development of Wearable Braille Reader2021

    • Author(s)
      Akiha Yanagisawa and Shoichi Ito
    • Organizer
      The 14th International Symposium on Advances in Technology Education (ISATE2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 感圧センサからの点字読み取りにおける補正アルゴリズム2021

    • Author(s)
      柳澤陽葉・伊藤祥一
    • Organizer
      情報処理学会第83回全国大会
    • Related Report
      2020 Research-status Report
  • [Presentation] ウェアラブル点字リーダーの開発2021

    • Author(s)
      伊藤祥一・藤澤義範
    • Organizer
      第5回KMSメディカル・アーク2021 with MTO オンライン大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 小型感圧センサを用いた点字の読み取り手法2020

    • Author(s)
      伊藤祥一
    • Organizer
      第19回情報科学技術フォーラム
    • Related Report
      2020 Research-status Report
  • [Presentation] 光沢を考慮した点字画像の2値化アルゴリズム2020

    • Author(s)
      岡村宙輝・伊藤祥一
    • Organizer
      情報処理学会第82回全国大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 圧力センサから読み込まれた点字のスペル訂正アルゴリズム2020

    • Author(s)
      下平啓太・伊藤祥一
    • Organizer
      情報処理学会第82回全国大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Tender --- Smartphone Application for Braille Reading2019

    • Author(s)
      Shoichi Ito and Yoshinori Fujisawa
    • Organizer
      The 7th ACIS International Conference on Applied Computing & Information Technology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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