| Project/Area Number |
04660306
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
畜産化学
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| Research Institution | Okayama University |
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Principal Investigator |
IZUMIMOTO Masatoshi Okayama Univ., Fac.Agri., Professor, 農学部, 教授 (70003142)
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| Co-Investigator(Kenkyū-buntansha) |
KATAOKA Kei Okayama Univ., Fac.Agri., Professor, 農学部, 教授 (90032987)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1993: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1992: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Meat color / Color characteristic / CIEXYZ value / CIELAB value / Myoglobin / Form / Computer AI |
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| Research Abstract |
1. Spectral characteristic of achromatic muscular matrix : Achromatic muscular matrix imagined as a colorless meat have been unknown in order to non-exist. However, a characteristic of reflectance spectrum of the matrix is extremely important as a baseline for a light reflectance spectrometry. Therefore, reflectance spectrum of a bleached sample was analyzed using an optical characteristic function of power. The particular function to show characteristic of the matrix was obtained that the reflectance curve indicated low at short wavelength.
2. Automatic judgment of Mb forms : Using the above base-line, the parameters derived from the * spectral analytical results were useful to determine a spectral characteristic due to myoglobin(Mb) forms. This method was more appropriate than conventional method and was able to be automatically judged Mb forms by computer.
3. Characterization of the color appearance : The values of color appearance were computed by CIEXYZ values derived from a reflect
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ance spectrum. Linear correlations between every reciprocal X, Y, Z values were found and CIEXYZ characteristics were obtained. The CIEXYZ characteristic functions were shown with the same function that the coefficients only differed with Mb form. The CIEXYZ characteristics were convert to characteristics of CIELAB color, and the parabola shape was found correspond to sensation.
4. Visualization of the characteristics and computer AI management : * spectra were analyzed and the correspondence relation with Mb form and color appearance characteristic was graphic displayd with a computer. The information was displayd about color appearance characteristics of lightness, saturation and hue, typical or abnormal meat, * spectrum and Mb form. Color phenomenon has a lot of parameter, the interpretation by a person is difficult. Therefore, AI treatment was performed using parameters from functions analyzed in this research. The characteristics of color appearance and the typicality were able to judge automatically and represented with sentence by computer at real time. Less
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