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DAMAGE FRUITS INSPECTING SYSTEM BY MACHINE VISION

Research Project

Project/Area Number 02660254
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 農業機械
Research InstitutionSHIMANE UNIVERSITY

Principal Investigator

IWAO Toshio  SHIMANE UNIV., AGRIC.FAC., PROFESSOR, 農学部, 教授 (70032547)

Co-Investigator(Kenkyū-buntansha) FUJIURA Tateshi  SHIMANE UNIV., AGRIC.FAC., PROFESSOR, 農学部, 教授 (00026585)
竹山 光一  島根大学, 農学部, 助教授 (20032625)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1991: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1990: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsmachine vision / near-infrared image / gray-level / discriminat analysis / superslice algolism / damaged fruit / sorting / spectral reflectance / 領域・エッド併用法 / 青果物 / 傷 / 分光反射特性 / 濃度値 / 選果システム / 人工損傷 / 自然損傷
Research Abstract

In the fruits packinghousep the postharvest handling and packaging of fruits has been extensively automated, with the exception of the sorting operation, which continues to be a manual effort. Consequently, automation of the fruit defect sorting has potential for improving product quality, in addition to reducing packinghouse labor costs.
This study dealt with the spectral reflectance characteristics of fruitsurface defects in order to the development of a machine vision sorting system for fruit defects. And the types of fruit defects were bruises, cut, brown rots. copressed and impacted damages.
Detecting condition of peach defects in the visible wavelength region(290 780) were complicated by the variation in color over the surface of the peach. But blush and ground color curves had about same values of spectral reflectance drew the clear distinction between normal and damage of peach surface.
The study on damage fruits inspection dealt with a trial of developing an image analysis algolithms based on NTSC r, g, b chromatictity in color image and the gray level of infrared image to identify defects.
The detecting algolism of defects of peach was developed on the difference of the gray-level between normal and defects, utilizing the method of discriminat analysis and superlices algolithm. Two method had to be investigated in detecting the defects such as worm, scar, burises and aracle. Any one can exactl split the defects from the peach image.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] 岩尾 俊男(共著): "非破壊による青果物の選別に関する研究(I)-桃損傷果の分光反射特性-" 島大農学部研究報告. NO.24. 134-139 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 岩尾 俊男(共著): "非破壊による青果物の選別に関する研究(II)-ナシ、リンゴ損傷果の分光反射特性" 島大農学部研究報告. NO.25. 75-80 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 岩尾 俊男(共著): "画像処理システムによる青果物の傷検出に関する研究(I)-モモ損傷の検出-" 島大農学部研究報告. NO.26. 33-38 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 李 暁明(共著): "画像処理システムによる青果物の傷の検出に関する研究(I)-モモの分光反射特性-" 農業機械学会誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 李 暁明(共著): "画像処理システムによる青果物の損傷果検出システム(II)-画像処理システムと傷抽出アルゴニスム-" 農業機械学会誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Iwao, Toshio: "Studies on Nondestructive Quality Sorting of Agricultural Products (I) -Spectral Reflectance for Peach Defects-" Shimane uni.agri. 24. 134-139 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Iwao, Toshio: "Studies on Nondestructive Quality Sorting of Agricultural Products (II) -Spectral Reflectance for Peach and Apple Defects-" Shimane uni.agri. 25. 75-80 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Iwao, Toshio: "Study on Damage Fruit Inspection by Machine Vsion -Detection of Peach Defects-" Shimane uni.agri. 26. 33-38 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 岩尾 俊男(共著): "非破壊による青果物の選別に関する研究(I)-桃損傷果の分光反射特性" 島大農学部研究報告. No.24. 134-139 (1990)

    • Related Report
      1992 Annual Research Report
  • [Publications] 岩尾 俊男(共著): "非破壊による青果物の選別に関する研究(II)-ナシ,リンゴ損傷果の分光反射特性" 島大農学部研究報告. No.25. 75-80 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] 岩尾 俊男(共著): "画像システムによる青果物の傷検出に関する研究-モモ損傷の検出-" 島大農学部研究報告. No.26. 33-38 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 李 暁明(芝著): "画像処理システムによる青果物の傷の検出に関する研究(1)-モモの分光反射特性-" 農業機械学会誌.

    • Related Report
      1992 Annual Research Report
  • [Publications] 岩尾 俊男,他: "非破壊による青果物の選別に関する研究(I)ー桃損傷果の分光反射特性ー" 島根大学農学部研究報告. 24号. 134-139 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 岩尾 俊男,他: "非破壊による青果物の選別に関する研究(II)ー青果物の損傷果の分光反射特性ー" 島根大学農学部研究報告. 25号. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 李 暁明,他: "画像システムによる青果物の傷の検出についての研究" 農業機械学会関西支部報. 71号. 65-68 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 岩尾 俊男 他5名: "非破壊による青果物の選別に関する研究(1)ー桃損傷果の分光反射特性" 島根大学農学部研究報告. NO24. 134-139 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 岩尾 俊男 他2名: "農産物性研究第4集 農産物の測定と計測方法に関する総合的研究" 農業機械学会, (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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