Miss-recognition of Load Surface by The Low Vision

2011 Fiscal Year Final Research Report

• Project/Area Number: 21500516
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: The University of Tokushima
• Principal Investigator: FUJISAWA Shoichiro 徳島大学, 大学院・ソシオテクノサイエンス研究部, 教授 (50321500)
• Co-Investigator(Kenkyū-buntansha): BOOKA Masayuki 広島国際大学, 医療福祉学部, 教授 (90352012) ; SATO Katsuya 徳島大学, 大学院・ソシオテクノサイエンス研究部, 講師 (10403651) ; ITO Shin-ichi 徳島大学, 大学院・ソシオテクノサイエンス研究部, 助教 (90547655)
• Project Period (FY): 2009 – 2011
• Keywords: バリアフリー / 視覚障害者 / 歩行支援

Research Abstract

In this study, it was confirmed that the low vision miss-recognized lines on roads as ditches at the specific luminance contrast and width of line. Three results were provided from these experiments. It was observed at first that miss-recognition of lines on road surfaces occurred more frequently according to increment of luminance contrast. Secondly, there were no relations between width and visibility of the lines. Finally, there were no relations between illumination and visibility of the lines. In the ISO23599, to secure the visibility of the Tactile Walking Surface Indicators, the luminance ratio of the lateral band is assumed to be 30%. It was clarified that it was undesirable to exceed luminance ratio 30% by this study.

Research Products

• [Journal Article] Mis-recognition of Road Surface by The Low Vision (2011)
  • Author(s): Kayoko Matsubara, Takamaro Hamada, Shin-icho Ito, Katsuya Sato, Masayuki Booka, Hidehisa Oku and Shoichiro Fujisawa
  • Journal Title: Assistive Technology Research Series Volume: Vol.29 Pages: 610-617
  • DOI: DOI:10.3233/978-1-60750-814-4-610.
  • Peer Reviewed
• [Presentation] Effect of Road Surface Condition for the Low Vision (2012)
  • Author(s): Kayoko Matsubara, Shin-ichi Ito, Katsuya Sato, Masayuki Booka, Hidehisa Oku and Shoichiro Fujisawa
  • Organizer: 2012 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing(NCSP2012)
  • Place of Presentation: ワイキキビーチ・マリオネットリゾート & スパ(ホノルル)
  • Year and Date: 2012-03-04
• [Presentation] ロービジョン者の歩行面における誤識別に関する研究 (2011)
  • Author(s): 濱田隆麿郎, 松原加代子, 伊藤伸一, 佐藤克也, 坊岡正之, 奥英久, 藤澤正一郎
  • Organizer: 日本機械学会ロホティクス・メカトロニクス講演会
  • Place of Presentation: 岡山コンベンションセンター(岡山市)
  • Year and Date: 2011-05-26
• [Presentation] ロービジョン者の歩行面の御識別に関する研究 (2010)
  • Author(s): 藤澤正一郎, 松原加代子, 濱田隆麿郎, 伊藤伸一, 佐藤克也, 坊岡正之, 奥英久
  • Organizer: 第31回バイオメカニクス学術講演会(SOBIM2010)
  • Place of Presentation: 静岡大学(浜松市)
  • Year and Date: 2010-11-06
• [Presentation] ロービジョン者における視覚障害者誘導用ブロックの視認性向上に関する研究-側帯付加による視認性向上と誤認識発生に関する実験的検討- (2010)
  • Author(s): 松原加代子, 濱田隆磨郎, 伊藤伸一, 佐藤克也, 坊岡正之, 奥英久, 藤澤正一郎
  • Organizer: 生活生命支援医療福祉工学系学会連合大会(WWLS2010)
  • Place of Presentation: 大阪大学(豊中市)
  • Year and Date: 2010-09-18
• [Presentation] ロービジョン者の歩行面の誤識別に関する研究 (2010)
  • Author(s): 濱田隆麿郎, 松原加代子, 伊藤伸一, 佐藤克也, 坊岡正之, 奥英久, 藤澤正一郎
  • Organizer: 日本機械学会ロボティクス・メカトロニクス講演会
  • Place of Presentation: 旭川大雪アリーナ(旭川市)
  • Year and Date: 2010-06-13
• [Presentation] ロービジョン者の歩行面の誤識別に関する研究 (2010)
  • Author(s): 濱田隆麿郎, 松原加代子, 伊藤伸一, 佐藤克也, 坊岡正之, 奥英久, 藤澤正一郎
  • Organizer: 電気学会産業計測制御研究会
  • Place of Presentation: 千葉大学(千葉市)
  • Year and Date: 2010-03-08
• [Presentation] Fujisawa, Visibility of Lateral Band for Tactile Walking Surface Indicators (2010)
  • Author(s): Kayoko Matsubara, Takamaro Hamada, Shin-ichi Ito, Katsuya Sato, Masayuki Booka, Hidehisa Oku, Seiji Mitani, Toshikazu Kato, Osamu Sueda and Shoichiro Fujisawa
  • Organizer: 2010 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing(NCSP' 10)
  • Place of Presentation: ワイキキビーチ・マリオネットリゾート & スパ(ホノルル)
  • Year and Date: 2010-03-03
• [Remarks]
  • URL: http://pub2.db.tokushima-u.ac.jp/ERD/person/79528/profile-ja.html