Infrared and Laser Engineering, Volume. 51, Issue 9, 20210962(2022)
Quantitative analysis research of ChemCam-LIBS spectral data of Curiosity rover
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Fig. 3. Schematic diagram of three channel folding and convolution operation of spectral data
Fig. 5. Deep convolution of the whole after spatial convolution for each channel
Fig. 7. Predicted content of each principal component corresponding to the models
Table 1. Improved ResNet152 network structure confi-guration parameters for prediction
View tableView in ArticleTable 1. Improved ResNet152 network structure confi-guration parameters for prediction
Layer name Output size ResNet152 Feature maps Convolution 112×112 77 conv, 64, stride2 64 Pooling 56×56 3 × 3 max pool, stride2 64 Residul block(1) 56×56 1 × 1,64 256 3 × 3, 64 × 3 1 × 1, 256 Residul block(2) 28×28 1 × 1, 128 512 3 × 3, 128 × 8 1 × 1, 512 Residul block(3) 14×14 1 × 1, 256 1024 3 × 3, 256 × 36 1 × 1, 1024 Residul block(4) 7×7 1 × 1, 512 2 048 3 × 3, 512 × 3 1 × 1, 2048 Linear layer 1×1 Linear
Table 2. Comparison of RMSE and
R 2 scores of element content prediction valuesView tableView in ArticleTable 2. Comparison of RMSE and
R 2 scores of element content prediction valuesLinearSVR Xception ResNet152 Element RMSE R2 RMSE R2 RMSE R2 SiO2 5.28 0.78 4.48 0.84 3.69 0.89 TiO2 0.62 0.39 0.51 0.57 0.59 0.42 Al2O3 3.77 0.52 3.68 0.54 3.36 0.62 FeOT 2.53 0.74 2.34 0.85 2.25 0.86 MgO 1.66 0.86 1.26 0.92 1.04 0.94 CaO 1.99 0.95 1.45 0.97 1.01 0.99 Na2O 0.68 0.75 0.63 0.81 0.61 0.83 K2O 0.74 0.76 0.46 0.91 0.43 0.95
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Pengfei Zhang, Ting Zhou, Daohua Xia, Li Zhang. Quantitative analysis research of ChemCam-LIBS spectral data of Curiosity rover[J]. Infrared and Laser Engineering, 2022, 51(9): 20210962
Paper Information
Category: Photoelectric measurement
Received: Jan. 20, 2022
Accepted: --
Published Online: Jan. 6, 2023
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