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Information sensing for the appearance of handwritten strokes based on compound-eye imaging

Research Project

Project/Area Number 24500232
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Perception information processing/Intelligent robotics
Research InstitutionNational Research Institute of Police Science

Principal Investigator

AKAO Yoshinori  科学警察研究所, 法科学第四部, 主任研究官 (30356159)

Co-Investigator(Kenkyū-buntansha) HIGASHIKAWA Yoshiyasu  科学警察研究所, 法科学第四部, 室長 (80356196)
YAMAMOTO Atsushi  科学警察研究所, 法科学第四部, 研究員 (90462754)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords筆跡 / 質感 / 偏角画像 / 複眼光学系 / 画像センシング
Outline of Final Research Achievements

The purpose of this study is to propose a measurement-based method evaluating the appearance of handwritten strokes, which is currently performed by experts’ observation in the process of forensic handwriting examination. We constructed a compound-eye imaging system for efficient acquisition of gonio-reflection information, which is considered to be closely related with the appearance of objects. The proposed system successfully acquired gloss images together with density images. The continuity and local shape of gloss pattern along handwritten strokes were considered to give effective information concerning the appearance that had been pointed out by experts.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (13 results)

All 2015 2014 2013 2012

All Presentation (13 results)

  • [Presentation] 複眼画像システムによるプリンタ画線の偏角多段露光観察2015

    • Author(s)
      赤尾 佳則,山本 敦,東川 佳靖
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川県平塚市
    • Year and Date
      2015-03-11 – 2015-03-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 筆跡画線のカーネル密度推定による平均的な字形の表示2014

    • Author(s)
      赤尾 佳則,山本 敦,東川 佳靖
    • Organizer
      日本法科学技術学会第20回学術集会
    • Place of Presentation
      東京都港区
    • Year and Date
      2014-11-13 – 2014-11-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Assisting forensic writer verification by visualizing diversity of digit handwritings : An approach by multidimensional scaling of Earth Mover’s Distance2014

    • Author(s)
      Yoshinori Akao, Atsushi Yamamoto, and Yoshiyasu Higashikawa
    • Organizer
      14th International Conference on Frontiers in Handwriting Recognition (ICFHR 2014)
    • Place of Presentation
      Crete, Greece
    • Year and Date
      2014-09-01 – 2014-09-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Feasibility study of visualizing diversity of Japanese Hiragana handwritings by multidimensional scaling of Earth Mover's Distance toward assisting forensic experts in writer verification2014

    • Author(s)
      Yoshinori Akao, Atsushi Yamamoto, and Yoshiyasu Higashikawa
    • Organizer
      11th IAPR International Workshop on Document Analysis Systems (DAS 2014)
    • Place of Presentation
      Tours, France
    • Year and Date
      2014-04-07 – 2014-04-10
    • Related Report
      2014 Annual Research Report 2013 Research-status Report
  • [Presentation] Assisting forensic writer verification by visualizing diversity of digit handwritings2014

    • Author(s)
      Yoshinori Akao, Atsushi Yamamoto, and Yoshiyasu Higashikawa
    • Organizer
      14th International Conference on Frontiers in Handwriting Recognition (ICFHR2014)
    • Place of Presentation
      Crete, Greece
    • Related Report
      2013 Research-status Report
  • [Presentation] 複眼OVD偏角撮像システムによるヘアライン箔の絵素配置検知2014

    • Author(s)
      赤尾佳則,東川佳靖,谷田 純
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川県相模原市
    • Related Report
      2013 Research-status Report
  • [Presentation] Evaluation of intra-personal variations and interpersonal differences of Japanese Hiragana handwritings by kernel density estimation and Earth Mover’s Distance2013

    • Author(s)
      Yoshinori Akao, Atsushi Yamamoto, and Yoshiyasu Higashikawa
    • Organizer
      16th Biennial Conference of the International Graphonomics Society (IGS2013)
    • Place of Presentation
      Nara, Japan
    • Related Report
      2013 Research-status Report
  • [Presentation] Earth Mover's Distanceに基づいた筆跡字形の個人内変動と個人差の評価法における画線密度分布のクラスタ数の検討~平仮名筆跡について~2013

    • Author(s)
      赤尾佳則,山本 敦,東川佳靖
    • Organizer
      電子情報通信学会 パターン認識・メディア理解研究会(PRMU)
    • Place of Presentation
      三重県津市
    • Related Report
      2013 Research-status Report
  • [Presentation] KDEとEMDによる平仮名筆跡の個人内変動と個人差の検討2013

    • Author(s)
      赤尾佳則,山本 敦,東川佳靖
    • Organizer
      日本法科学技術学会第19回学術集会
    • Place of Presentation
      東京都港区
    • Related Report
      2013 Research-status Report
  • [Presentation] 複眼OVD偏角撮像システムを用いたグレーティング刻線数推定におけるジオメトリ数に関する一考察2013

    • Author(s)
      赤尾佳則,山本 敦,東川佳靖
    • Organizer
      第7回新画像システム・情報フォトニクス研究討論会
    • Place of Presentation
      東京都目黒区
    • Related Report
      2013 Research-status Report
  • [Presentation] 複眼OVD偏角撮像システムを用いたグレーティング刻線数推定におけるジオメトリ数と画素数の影響2013

    • Author(s)
      赤尾佳則,山本 敦,東川佳靖
    • Organizer
      日本光学会年次学術講演会 Optics & Photonics Japan 2013
    • Place of Presentation
      奈良県奈良市
    • Related Report
      2013 Research-status Report
  • [Presentation] Evaluation of Intra-personal Variations and Interpersonal Differences of Japanese Hiragana Handwritings by Kernel Density Estimation and Earth Mover’s Distance2013

    • Author(s)
      Yoshinori Akao, Atsushi Yamamoto, and Yoshiyasu Higashikawa
    • Organizer
      16th International Graphonomics Society Conference (IGS2013)
    • Place of Presentation
      奈良市
    • Related Report
      2012 Research-status Report
  • [Presentation] カーネル密度推定とEMDによる筆跡の個人内変動と個人差の数量化2012

    • Author(s)
      赤尾佳則,山本 敦,東川佳靖
    • Organizer
      日本法科学技術学会 第18回学術集会
    • Place of Presentation
      東京都港区
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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