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Toward developing a method of high accuracy character recognition for poorly handwritten Kanii characters.

Research Project

Project/Area Number 12480093
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報システム学(含情報図書館学)
Research InstitutionYamagata University

Principal Investigator

WATANABE Yoichi  Faculty of Literature and Social Sciences, Yamagata University, Professor, 人文学部, 教授 (10137490)

Co-Investigator(Kenkyū-buntansha) SARUTA Kazuki  Faculty of Systems Science and Technology, Akita Prefectural University, Assistant Professor, システム科学技術学部, 助教授 (80282193)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥8,300,000 (Direct Cost: ¥8,300,000)
Fiscal Year 2002: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2001: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2000: ¥5,400,000 (Direct Cost: ¥5,400,000)
Keywordscharacter recognition / handwritten characters / Kanji / poor handwriting / eye movement / 手書き漢字 / 倒立提示 / くずれ字
Research Abstract

We developed a quantification method to assess the legibility of handwritten Kanji characters. The index of legibility deriving from this method corresponded to the results of psychological experiments. Sample characters were 528 handwritten Kanji characters selected from signatures written by 280 students. Other 33 participants were asked to classify these characters into three levels of legibility: Well ・ Ordinary ・ Poor. Then a quantification method of legibility of handwritten Kanji characters was introduced. This method adopted some variables corresponding to the property of human cognition: global features and local features of characters. With this method, we could predict human decision about legibility of handwritten Kanji characters at about 90% precision level. For example, the index of this method showed quantitatively that there were some handwritten characters having higher legibility than block letters. Next, we analyzed patterns of the eye movement during the character recognition task. The stimuli were block-letter, well-hand written, and poorly-handwritten Kanji characters. The percentage of correct recognition was highest with the block-letter, second highest with the well-hand written, and lowest with the poorly-handwritten characters. There was a tendency that the number of fixation went higher in accordance with the increase of the poor handwriting index, which the authors had invented. In conclusion, the validity of this index was confirmed. We believe this index is an useful measure to research the high accuracy recognition system of handwritten Kanji characters.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 渡邊洋一: "手書き漢字認識におけるブライミング効果"日本心理学会第41回大会発表論文集. 578 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 猿田和樹, 渡邊洋一, 阪本邦夫, 武田和時: "悪筆文字における重心位置の解析"電子情報通信学会ソサイエティ大会(情報システム). D-12-7 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊洋一, 猿田和樹: "悪筆の構造-手書き漢字の読みやすさの定量化-"電子情報通信学会技術報告. HIP2001-76. 57-62 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊洋一, 猿田和樹: "悪筆文字の定量化とその構造的特徴"山形大学紀要(人文科学). 15(1). 85-97 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊洋一, 猿田和樹: "手書き漢字認識と眼球運動-倒立提示による検討-"電子情報通信学会技術報告. HIP2002-49. 37-41 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Watanabe Yoichi: "Priming effect in recognizing handwritten Kanji characters.(in Japanese)"Collected papers in the 41th General Conference of the Japanese Psychological Association. 578 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Saruta Kazuki, Watanabe Yoichl, Sakamoto Kunio, Takeda Kazutoki: "An analysis of the center of gravity on poorly handwritten character.(in Japanese)"Collected papers in the technical group meetings of the Institute of Electronics, Information and Communication Engineers(Inforraation and System Society). D-12. 7 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Watanabe Yoichi, Saruta Kazuki: "A quantification method of legibility of handwritten Kanji characters.(in Japanese)"Technical Report of IEICE. HIP2001-76. 57-62 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Watanabe Yoichi, Saruta Kazuki: "A method for assessing the legibility of handwritten Kanji characters: A study on the properties of poorly written characters.(in Japanese)"Bulletin of Yamagata Univereity(Humanities). 15(1). 85-97 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Watanabe Yoichi, Saruta Kazuki: "Eye movement in the recognition of handwritten Kanji characters: A study with the inverse stimulus presentation.(in Japanese)"Technical Report of IEICE. HIP2002-49. 37-41 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊洋一, 猿田和樹: "手書き漢字認識と眼球運動-倒立提示による検討-"電子情報通信学会技術報告. HIP2002-49. 37-41 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 渡邊洋一, 猿田和樹: "悪筆の構造-手書き漢字の読みやすさの定量化-"電子情報通信学会技術報告. HIP2001-76. 57-62 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 渡邊洋一, 猿田和樹: "悪筆文字の定量化とその構造的特徴"山形大学紀要(人文科学). 第15巻第1号. 85-97 (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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