Qiulan Yang, Xiaoxia Wan, Gensheng Xiao. Multispectral Dimension Reduction Algorithm Based on Partial Least Squares[J]. Laser & Optoelectronics Progress, 2020, 57(1): 013003
- Laser & Optoelectronics Progress
- Vol. 57, Issue 1, 013003 (2020)
Fig. 1. Chromaticity diagrams of 1600 Munsell color blocks obtained by CIE D65 and CIE 1931 standard observers. (a) L*-a* chromaticity diagram; (b) L*-b* chromaticity diagram; (c) a*-b* chromaticity diagram
Fig. 2. Spectral error distributions obtained by different dimension reduction methods. (a) Dimension reduction by LabPQR method; (b) dimension reduction by LabKMN method
Fig. 3. Spectral reconstruction RMSE curves obtained by different dimension reduction methods. (a) Dimension reduction by LabPQR method; (b) dimension reduction by LabKMN method
Fig. 4. Fitted curves of reconstructed spectra for different samples. (a) Sample with good fitted effect; (b) sample with general fitted effect; (c) sample with poor fitted effect
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Table 1. Comparison of spectral reconstruction accuracy between LabPQR dimension reduction method and LabKMN dimension reduction method
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