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- W4313889603 abstract "Spectral reflectance reconstruction for multispectral images (such as Weiner estimation) may perform sub-optimally when the object being measured has a texture that is not in the training set. The accuracy of the reconstruction is significantly lower without training samples. We propose an improved reflectance reconstruction method based on L1-norm penalization to solve this issue. Using L1-norm, our method can provide the transformation matrix with the favorable sparse property, which can help to achieve better results when measuring the unseen samples. We verify the proposed method by reconstructing spectral reflection for four types of materials (cotton, paper, polyester, and nylon) captured by a multispectral imaging system. Each of the materials has its texture and there are 204 samples in each of the materials/textures in the experiments. The experimental results show that when the texture is not included in the training dataset, L1-norm can achieve better results compared with existing methods using colorimetric measure (i.e., color difference) and shows consistent accuracy across four kinds of materials." @default.
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- W4313889603 date "2023-01-06" @default.
- W4313889603 modified "2023-10-11" @default.
- W4313889603 title "Improving Generalizability of Spectral Reflectance Reconstruction Using L1-Norm Penalization" @default.
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- W4313889603 doi "https://doi.org/10.3390/s23020689" @default.
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