Research on the conditions under which TV images and sounds can be presented to elderly people in more user-friendly manner

• Project/Area Number: 16500137
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Sensitivity informatics/Soft computing
• Research Institution: Nippon Institute of Technology
• Principal Investigator: ISONO Haruo Nippon Institute of Technology, Engineering Department, Professor, 工学部, 教授 (60337516)
• Project Period (FY): 2004 – 2006
• Project Status: Completed (Fiscal Year 2006)
• Budget Amount: ¥3,100,000 (Direct Cost: ¥3,100,000); Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000); Fiscal Year 2005: ¥900,000 (Direct Cost: ¥900,000); Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
• Keywords: Elderly people / Speech conversion / User-friendly / Variable speed reproduction of TV / Sign language image / Visibility of color image / evaluation of KANSEI / the Interne / 内容理解度 / テレビ映像・音声 / 不快感 / 光トポグラフィ / 脳血流 / テレビニュース音声 / インターネット視聴 / インターチエンジ効果 / カラー画像 / 年代別視覚コントラスト / 視環境評価 / カラーコントチェッカ

Research Abstract

Japan, one of the world's a most advanced nations, is feeling the strain of aging. Of the country's population of 130 million people, 20 million are aged 65 or older, a figure that is projected to rise to one in four by 2025. In such an aging society, the number of elderly TV viewers will rise dramatically, so it is important to provide TV programs that are easy to see and understand for the elderly and those with disabilities. Among the complaints often raised by elderly viewers are that news program announcers speak too quickly and that the program's BGM and other noise including the audience's voice make it more difficult to hear the sounds. With this background, we examined the conditions under which TV images and sounds can be presented to the elderly and those with disabilities in a more user-friendly manner.
In this study, we first conducted a subjective test to evaluate the user-friendliness of TV news sounds for the elderly and young viewers. We studied audio conditions under which the elderly could hear the announcer's voice more clearly in a news program and compared the results between the elderly and young people. Next, we checked how well sign language images could be understood by hearing-impaired viewers depending on their familiarity with sign language and proposed an optimal speed of reproduction. In subjective evaluation test, sign language news images were presented to the participants with hearing impairments at this preferred reproduction speed. We also constructed a system that allows viwers to freely change the speed of presentation of sign language images on the Internet. We clarified the system's usefulness and problems in a subsequent questionnaire survey of hearing-impaired viewers.

Research Products

• [Journal Article] Playing Back Television Images at Varying Speeds and its Viewing Effects (2007)
  • Author(s): Takeda, M., Yamakawa, N., Isono, H.
  • Journal Title: ITE Technical Report(The Institute of Image Information and Television Engineers of Japan) Vol.31, No.14 Pages: 97-98
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] 手話映像の好ましい再生速度とインターネットによる視聴システム (2006)
  • Author(s): 滝口雄介, 大澤洋, 阿部剛, 奥寛昭, 磯野春雄, 中間正人
  • Journal Title: 映像情報メディア学会、技術報告 第30巻17号 Pages: 55-58
  • NAID: 10017963932
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] テレビ映像の再生速度と視聴効果 -ニュースの内容理解度および漫才の面白さへの応用- (2006)
  • Author(s): 武田優人, 山川直人, 磯野春雄
  • Journal Title: 映像情報メディア学会、技術報告 第31巻14号 Pages: 97-98
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Preferred Reproduction Speed of Sign language Image and Audiovisual System via the Internet (2006)
  • Author(s): Takiguchi, Y., Ohsawa, H., Abe, T., Oku, H., Isono, H., Nakama, M.
  • Journal Title: ITE Technical Report(The Institute of Image Information and Television Engineers of Japan) Vol.28, No.17 Pages: 55-58
  • NAID: 10017963932
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] インターネットによる可変速手話視聴システム (2006)
  • Author(s): 磯野, 滝口, 勝又, 中間
  • Journal Title: 日本手話学会、大会 第32回
• [Journal Article] テレビ映像の再生速度と視聴効果-ニュースの内容理解度および漫才の面白さへの影響- (2006)
  • Author(s): 武田, 山川, 磯野
  • Journal Title: 映像情報メディア学会、メディア工学研究会 vol.31.No.14 Pages: 97-98
• [Journal Article] 手話映像の好ましい再生速度とインターネットによる視聴システム (2006)
  • Author(s): 滝口, 大澤, 阿部, 奥, 磯野, 中間
  • Journal Title: 映像情報メディア、メディア工学研究会 Vol.30,No.17 Pages: 55-58
  • NAID: 10017963932
• [Journal Article] 手話学習におけるインターチエンジ効果 (2006)
  • Author(s): 平林, 阿部, 滝口, 大澤, 磯野, 中間
  • Journal Title: 映像情報メディア、メディア工学研究会 Vol.30,No.17 Pages: 17-18
• [Journal Article] 立体手話映像と平面手話映像の比較評価 (2006)
  • Author(s): 勝又, 木村, 中野, 滝口, 磯野
  • Journal Title: 映像情報メディア、メディア工学研究会 Vol.30,No.17 Pages: 19-20
  • NAID: 10017963871
• [Journal Article] 高齢者に聞きやすいテレビ音声の再生速度 (2005)
  • Author(s): 滝口雄介, 神戸麻美, 横溝多佳子, 高品光廣, 磯野春雄
  • Journal Title: 映像情報メディア学会、技術報告 第29巻、17号 Pages: 59-60
  • NAID: 10015517323
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Age-related Changes of Relative Luminance and Contrast for LED Lights of Different Colors (2005)
  • Author(s): Isono, H., Takiguchi, Y., Yamada, C.
  • Journal Title: Proc. Of the 12^<th> International Display workshops (IDW' 05) Vol.6-9 Pages: 1871-1872
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Age-related Changes of Relative Luminance and Contrast for LED Lights of Different Colors (2005)
  • Author(s): Isono, H., Takiguchi, Y., Yamada, C.
  • Journal Title: Proc. of the 12th International Display Workshops (IDW'05) Vol.6-9 Pages: 1871-1872
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Replay Speed of easy to Hearing TV News Sounds for Elderly Viewers (2005)
  • Author(s): Takiguchi, Y., Kanbe, A., Yokomizo, T., Takashina, H., Yamada, T., Isono, H.
  • Journal Title: ITE Technical Report(The Institute of Image Information and Television Engineers of Japan) Vol.29, No.17 Pages: 59-60
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] 聴覚障害者を対象とした手話映像の好ましい再生速度 (2005)
  • Author(s): 滝口, 大澤, 阿部, 奥, 平林, 磯野
  • Journal Title: 映像情報メディア学会、冬季大会 6-2
• [Journal Article] 高齢者に聞きやすいテレビ音声の再生速度 (2005)
  • Author(s): 滝口, 神戸, 横溝, 高品, 山田, 磯野
  • Journal Title: 映像情報メディア学会技術報告(メディア工学研究会) Vol.29,No.17 Pages: 59-60
  • NAID: 10015517323
• [Journal Article] 年代別視覚コントラスト測定システムとWebセーフカラーヘの応用 (2004)
  • Author(s): 磯野春雄, 加藤光, 大澤洋, 三浦裕明, 山田千彦
  • Journal Title: 映像情報メディア学会、技術報告 第28巻42号 Pages: 13-17
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Age-related Visual Contrast Measuring System and Its Application to web-safe colors (2004)
  • Author(s): Isono, H., Kato, H., Miura, H., Yamada, C.
  • Journal Title: Proc. Of the 24^<th> International Display Conference (Asia Display' 04) Vol.14-3 Pages: 247-260
  • NAID: 40006432481
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Age related Visual Contrast Measurment System and its Application to web-safe Colors (2004)
  • Author(s): Isono, H., Kato, H., Ohsawa, H., Miura, H., Yamada, C.
  • Journal Title: ITE Technical Report(The Institute of Image Information and Television Engineers of Japan) Vol.28, No.42 Pages: 13-17
  • NAID: 40006432481
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Age- related Visual Contrast Measuring System and its Application to Web-safe Colors (2004)
  • Author(s): Isono, H., Kato, H., Miura, H., Yamada, C.
  • Journal Title: Proc. of the 24th International Display Conference (Asia Display'04) Vol.14-3 Pages: 247-260
  • NAID: 40006432481
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] 年代別視覚コントラスト測定システムとWebセーフカラーへの応用 (2004)
  • Author(s): 磯野, 加藤, 大沢, 三浦, 山田
  • Journal Title: 映像情報メディア学会技術報告(メディア工学研究会) Vol.28,No.42 Pages: 13-17
  • NAID: 40006432481
• [Journal Article] Age-related Visual Contrast Measuring System and Its Application to Web-safe Colors (2004)
  • Author(s): Isono, Kato, Osawa, Miura, Yamada
  • Journal Title: Proceedings of The 24^<th> International Display Research Conference (Asia Display' 04) 14-3 Pages: 247-250
  • NAID: 40006432481