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2003 Fiscal Year Final Research Report Summary

The Aging Effect on the Color Perception : Does aged person observe everything yellowrish?

Research Project

Project/Area Number 13650048
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionFukuoka Institute of Technology

Principal Investigator

NAMEDA Naoyoshi  Fukuoka Institute of Technology, Faculty of Information Engineering, Professor, 情報工学部, 教授 (50231494)

Co-Investigator(Kenkyū-buntansha) KATAYAMA Toshimi  Fukuoka Institute of Technology, Faculty of Information Engineering, Assistant Professor, 情報工学部, 講師 (20233752)
Project Period (FY) 2001 – 2003
KeywordsAging / Color / Vision / Brightness / Colorimetric / Flicker method / Different color photometry / Modulation Transfer Function
Research Abstract

It has been said that an aged person observes everything yellowish because his lens in the eyeball becomes yellow. I intended to measure the color visual MTF properties of the aged person using a computer display under the financial help of Grand-in-aid for scientific research. The patterns used for the measurement must have no luminance difference but only color (hue) difference. However, if color changes, luminance also changes subordinately. In this paper, luminance is defined as brightness measured by an instrument. On the contrary, brighten sensation of human being is defined brightness. In advance of development color design, luminance of an instrument was confirmed as almost same as brightness of human being by flicker method. Then, in this investigation the luminance was used for speculation. It means color and brightness are determined by calculations. This investigation presents how to design the various colors keeping uniform luminance in a pattern. First method is that defaults values : R (red), G (Green) and B (Blue) in a computer, are initially determined, and then calculate color coordinates under keeping same luminance. Second method is that the most desirable color (color coordinates) are determined, consequently, the defaults values of R, G and B are calculated under the keeping same luminance.
Using these determined colors, color MTF propensities were measured for an aged person in comparison with young subjects and concluded that there is no different in color vision among them.

  • Research Products

    (19 results)

All 2004 2003 2002 2001

All Journal Article (19 results)

  • [Journal Article] Development of Color Visual MTF Properties Measurement using a Paper printed a Test Pattern2004

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      電子情報通信学会技術研究会報告 Vol.104

      Pages: 47-49

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of a Test Pattern for Measurement of Color Visual MTF Properties2004

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Advanced Information Networking and Applications (IEEE)

      Pages: 2-5

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A simulation of Color Perception2004

    • Author(s)
      Naoyoshi Nameda, Takahiro Yamamoto
    • Journal Title

      8^<th> International Conference on Optics within Life Sciences

      Pages: 123

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Color Assimilation caused by Ocular Chromatic Aberration2004

    • Author(s)
      T.Nakagawa, K.Sayo, N.Nameda
    • Journal Title

      8^<th> International Conference on Optics within Life Sciences

      Pages: 120

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of Color Visual MTF Properties Measurement using A Paper printed A Test Pattern2004

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Technical Report of IEICE (The institute of electronics Information and Communication Engineering) Vol.104

      Pages: 47-52

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Printed Test Pattern for Measurement of Color Visual MTF Properties2004

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Res.Bull.Fukuoka Inst.Tech.Information Reserch Laboratory Vol.15

      Pages: 57-60

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A Simulation of Color Perception2004

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      8th International Conference on Optics within Life Science

      Pages: 123

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Color Assimilation caused by Ocular Chromatic Aberration2004

    • Author(s)
      Takashi Nakagawa, Katunori Sano, Naoyoshi Nameda
    • Journal Title

      8th International Conference on Optics within Life Science

      Pages: 120

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] ディスプレイの輝度と色彩を決める一方法2003

    • Author(s)
      行田 尚義
    • Journal Title

      視覚の科学(日本眼光学学会誌) Vol.21

      Pages: 15-20

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A Deterring Method of Luminance and Colors in a Computer Display2003

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Japanese Journal of Visual Science Vol.24

      Pages: 15-20

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 欲しい色のR, G, Bを近似式を使って求める方法2002

    • Author(s)
      行田 尚義, 中川 貴
    • Journal Title

      照明学会誌 Vol.86

      Pages: 543-547

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 単眼視と両眼視による液晶ディスプレイを使った交照法2002

    • Author(s)
      行田 尚義
    • Journal Title

      福岡工業大学研究論集 Vol.34

      Pages: 177-181

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ディスプレイの色彩の設計2002

    • Author(s)
      行田 尚義
    • Journal Title

      福岡工業大学情報科学研究所報 Vol.13

      Pages: 51-56

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Printed Test Pattern for Measurement of Color Visual MTF Properties2002

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      福岡工業大学情報科学研究所報 Vol.15

      Pages: 51-56

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] R. G. and B Default Value Calculated for a Desired Color Using Approximate Formula2002

    • Author(s)
      Naoyoshi Nameda, Takashi Nakagawa
    • Journal Title

      J.Illum.Engng.Inst.Jpan Vol.86

      Pages: 543-547

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Luminance Matching of Flicker Method for Different Colors2002

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Res.Bull.Fukuoka Inst.Tech. Vol.34

      Pages: 177-181

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Designing of Colors on a Computer Display2002

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Res.Bull.Fukuoka Inst.Tech.Information Reserch Laboratory Vol.13

      Pages: 51-56

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 視覚における小色度差に対する新しい測定法2001

    • Author(s)
      行田 尚義
    • Journal Title

      福岡工業大学研究論集 Vol.33

      Pages: 133-138

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] New Measurement for Small Color Difference in Vision2001

    • Author(s)
      Naoyoshi Nameda
    • Journal Title

      Res.Bull.Fukuoka Inst.Tech. Vol.33

      Pages: 133-138

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2006-07-11  

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