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Improving reflectance reconstruction from tristimulus values by adaptively combining colorimetric and reflectance similarities

机译：通过将色度和反射率相似度进行自适应组合来改善三刺激值的反射率重建

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摘要

The use of spectral reflectance as fundamental color information finds application in diverse fields related to imaging. Many approaches use training sets to train the algorithm used for color classification. In this context, we note that the modification of training sets obviously impacts the accuracy of reflectance reconstruction based on classical reflectance reconstruction methods. Different modifying criteria are not always consistent with each other, since they have different emphases; spectral reflectance similarity focuses on the deviation of reconstructed reflectance, whereas colorimetric similarity emphasizes human perception. We present a method to improve the accuracy of the reconstructed spectral reflectance by adaptively combining colorimetric and spectral reflectance similarities. The different exponential factors of the weighting coefficients were investigated. The spectral reflectance reconstructed by the proposed method exhibits considerable improvements in terms of the root-mean-square error and goodness-of-fit coefficient of the spectral reflectance errors as well as color differences under different illuminants. Our method is applicable to diverse areas such as textiles, printing, art, and other industries.
机译：光谱反射率作为基本颜色信息的使用在与成像有关的不同领域中得到了应用。许多方法使用训练集来训练用于颜色分类的算法。在这种情况下，我们注意到训练集的修改显然会影响基于经典反射率重建方法的反射率重建的准确性。不同的修改标准并不总是彼此一致的，因为它们具有不同的重点。光谱反射率相似度着重于重构反射率的偏差，而比色相似度则强调人的感知。我们提出了一种通过自适应地将比色和光谱反射率相似性相结合来提高重构光谱反射率精度的方法。研究了加权系数的不同指数因子。通过所提出的方法重建的光谱反射率在光谱反射率误差的均方根误差和拟合优度系数以及不同光源下的色差方面显示出相当大的改进。我们的方法适用于各种领域，例如纺织，印刷，艺术品和其他行业。

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  • 来源
    《Optical engineering》 |2017年第5期|053104.1-053104.6|共6页
  • 作者

    Bin Cao; Ningfang Liao; Yasheng Li; Haobo Cheng;

  • 作者单位

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education of China, Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education of China, Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education of China, Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education of China, Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, China,Shenzhen Research Institute, Beijing Institute of Technology, Shenzhen, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    reflectance; reflectance reconstruction; adaptive approach; colorimetric similarity; reflectance similarity;

    机译：反射率反射率重建;适应性方法;比色相似度反射率相似度;

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