Spectroscopy and Spectral Analysis, Volume. 40, Issue 10, 3224(2020)

Detection of Prepared Steaks Freshness Using Hyperspectral Technology Combined With Wavelengths Selection Methods Combination Strategy

Zong-bao SUN*, Tian-zhen WANG, Xiao-yu LIU, Xiao-bo ZOU, Li-ming LIANG, Jun-kui LI, Zeng NIU, and Yun-long GAO
Author Affiliations
  • School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
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    Figures & Tables(9)
    Hyperspectral imaging system1: Stepper motor; 2: CCD camera; 3: Light source system; 4: Optical fiber halogen lamp; 5: Computer; 6: Three-axis precision electronically controlled traslation stage; 7: Object stage; 8: Sampe
    Results of TVB-N content in prepared steaks at different storage times
    Raw (a) and average spectra (b) of prepared steaks at different storage times
    Process of selecting characteristic wavelengths by CARS
    Changes in RMSECV with the number of EDF runs
    Frequency of selected wavelengths by CAPS (a) and VCPA (b) in repeated runs
    Wavelengths selected by iRF
    • Table 1. Predictive results of TVB-N content [mg·(100 g)-1] based on different pre-processing methods

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      Table 1. Predictive results of TVB-N content [mg·(100 g)-1] based on different pre-processing methods

      预处理方法RCRMSECVRPRMSEP
      1st Der0.9191.450.9071.52
      2nd Der0.9011.290.8821.43
      MC0.9071.440.9051.49
      MSC0.8981.500.8781.69
      SG0.9111.440.8961.46
      SNVT0.9011.480.8961.63
    • Table 2. Predictive results of TVB-N content [mg·(100 g)-1] based on different wavelength selection methods

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      Table 2. Predictive results of TVB-N content [mg·(100 g)-1] based on different wavelength selection methods

      特征波长
      选择方法
      波长数量RCRMSECVRPRMSEP
      CARS210.9321.240.9271.29
      VCPA110.9441.120.9311.28
      iRF3290.9361.210.9251.40
      iRF-CARS240.9660.910.9381.22
      iRF-VCPA70.9431.150.9321.23
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    Zong-bao SUN, Tian-zhen WANG, Xiao-yu LIU, Xiao-bo ZOU, Li-ming LIANG, Jun-kui LI, Zeng NIU, Yun-long GAO. Detection of Prepared Steaks Freshness Using Hyperspectral Technology Combined With Wavelengths Selection Methods Combination Strategy[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3224

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    Paper Information

    Category: Research Articles

    Received: Feb. 28, 2020

    Accepted: --

    Published Online: Jun. 18, 2021

    The Author Email: Zong-bao SUN (zongbaos@163.com)

    DOI:10.3964/j.issn.1000-0593(2020)10-3224-06

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