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Influence of the Number of Samples of the Training Set on Accuracy of Color Measurement and Spectral Reconstruction

机译：训练集样本数对颜色测量和光谱重建精度的影响

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摘要

In this article the authors analyze the influence of the number of samples in a training set on the accuracy of color and spectral measurements made using a colorimetric and multispectral imaging system. The authors develop a method for establishing the minimum and/or sufficient number of color samples in the training set above which the system's pen'ormance is independent of the number of samples. The authors also consider the dependence of the system's performance on the training set itself. Two setups of a charge coupled device camera-based imaging system are used for this purpose: a colorimetric configuration with three acquisition channels and a multispectral configuration with seven acquisition channels. On the basis of the criterion established in this article, the results show that the system's pen'ormance in terms of the accuracy of color measurement and spectral reconstruction seems to be independent of the training set used when over 110 samples are used for the colorimetric configuration and over 120 samples for the multispectral configuration. This result is true for both the number of samples in the training set and the training set itself. The method that the authors developed can be generalized and implemented in the industry for any application in which an imaging capture device is used for color and spectral measurements.
机译：在本文中，作者分析了训练集中样本数量对使用比色和多光谱成像系统进行的颜色和光谱测量准确性的影响。作者开发了一种方法，用于在训练集中建立最少数量和/或足够数量的颜色样本，在该集合上，系统的持久性独立于样本数量。作者还考虑了系统性能对训练集本身的依赖性。为此，使用基于电荷耦合设备相机的成像系统的两种设置：具有三个采集通道的比色配置和具有七个采集通道的多光谱配置。根据本文建立的标准，结果表明，当将110个以上的样本用于比色配置时，系统在颜色测量和光谱重建的准确性方面的优势似乎与所使用的训练集无关。多光谱配置的样本超过120个。对于训练集中的样本数和训练集本身而言，此结果都是正确的。作者开发的方法可以在工业中针对在其中将成像捕获设备用于颜色和光谱测量的任何应用进行推广和实施。

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  • 来源
    《Journal of Imaging Science and Technology》 |2010年第3期|P.030501.1-030501.10|共10页
  • 作者

    Marta de Lasarte; rnMontserrat Arjona; rnMeritxell Vilaseca; rnJaume Pujol;

  • 作者单位

    Centre for Sensors, Instruments, and Systems Development (CD6), Universitat Politecnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa, Barcelona 08222, Spain;

    rnCentre for Sensors, Instruments, and Systems Development (CD6), Universitat Politecnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa, Barcelona 08222, Spain;

    rnCentre for Sensors, Instruments, and Systems Development (CD6), Universitat Politecnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa, Barcelona 08222, Spain;

    rnCentre for Sensors, Instruments, and Systems Development (CD6), Universitat Politecnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa, Barcelona 08222, Spain;

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