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Development of high-precision measurement method of fruit color based on digital image analysis

Research Project

Project/Area Number 20880035
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Horticulture/Landscape architecture
Research InstitutionNational Agricultural Research Organization

Principal Investigator

YOSHIOKA Yosuke  National Agricultural Research Organization, 野菜茶業研究所・野菜育種研究チーム, 研究員 (50462528)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥2,925,000 (Direct Cost: ¥2,250,000、Indirect Cost: ¥675,000)
Fiscal Year 2009: ¥1,365,000 (Direct Cost: ¥1,050,000、Indirect Cost: ¥315,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsColor signature / 果実 / 画像解析 / 画像データベース / 紫外線 / 蛍光物質 / メロン / イチゴ / 定量的評価 / CIE-Lab / 多次元尺度構成法 / 輸送問題 / 果肉色
Research Abstract

In breeding and in pre- and postharvest studies of fruit color, an effective method for evaluating color is needed to replace subjective evaluations by eye. We used a series of data processing and statistical analyses used in content-based image retrieval to evaluate melon and strawberry flesh color, and assessed the efficacy of this approach. This method relies on summarizing color information from images into color signatures, calculating the earth mover's distance (EMD) between color signatures, and multi-dimensional scaling based on an EMD matrix. This method revealed important color features, such as the yellowish-green strength in green-fleshed melons, the relative size of the green and red parts in red-fleshed melons, and the relative size of the white and red parts in strawberry flesh, without the need for an explicit definition of these features. Moreover, this new method performed better at detecting color differences among cultivars than traditional evaluation methods. The method provides effective, objective indicators of fruit color, and shows considerable promise for use in research and breeding programs.

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (4 results)

All 2010 2009

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] Image-based phenotyping: use of colour signature in evaluation of melon fruit colour2010

    • Author(s)
      Yoshioka Y., N. Fukino
    • Journal Title

      Euphytica 171

      Pages: 409-416

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Image-based phenotyping : use of colour signature in evaluation of melon fruit colour2010

    • Author(s)
      Yosuke Yoshioka
    • Journal Title

      Euphytica 171

      Pages: 409-416

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Color signatureに基づくメロン果肉色の画像解析2009

    • Author(s)
      吉岡洋輔
    • Organizer
      園芸学会
    • Place of Presentation
      明治大学(東京)
    • Year and Date
      2009-03-20
    • Related Report
      2009 Final Research Report
  • [Presentation] Color signature に基づくメロン果肉色の画像解析2009

    • Author(s)
      吉岡洋輔
    • Organizer
      園芸学会平成21年度春季大会
    • Place of Presentation
      明治大学
    • Year and Date
      2009-03-20
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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