LU Xiao-quan,MA Kun,LI Fan,ZHANG Jian-qiang,ZHANG Xin-yu,WU Jia-quan,LI Zi-chao,ZHANG Jin-hao,REN Hui-hui,CHEN Hang.Study on Identification of Atomic Oil Types Based on Hyperspectral Imaging Technology and Random Forest Algorithm[J].Journal of Instrumental Analysis,2025,44(11):2339-2345.
LU Xiao-quan,MA Kun,LI Fan,ZHANG Jian-qiang,ZHANG Xin-yu,WU Jia-quan,LI Zi-chao,ZHANG Jin-hao,REN Hui-hui,CHEN Hang.Study on Identification of Atomic Oil Types Based on Hyperspectral Imaging Technology and Random Forest Algorithm[J].Journal of Instrumental Analysis,2025,44(11):2339-2345. DOI: 10.12452/j.fxcsxb.25020568.
Study on Identification of Atomic Oil Types Based on Hyperspectral Imaging Technology and Random Forest Algorithm
The identification of stamp pad ink types is a critical component in the field of forensic document examination,holding significant practical value for the analysis of seal impressions. In this study,hyperspectral imaging technology was employed to acquire spectral data from multiple brands of stamp pad inks,followed by preprocessing using the Savitzky-Golay(SG) method. Subsequently,a stamp pad ink type identification model was constructed based on the random forest (RF) algorithm. To validate the model's performance,the RF model was systematically compared with traditional methods such as the backpropagation neural network(BP) and the multilayer perceptron (MLP). Additionally,grid search combined with five-fold cross-validation was utilized to optimize model parameters,thereby enhancing the model’s performance and generalization capability. Experimental results demonstrated that the RF classification model(with 20 decision trees and 3 leaf nodes) outperformed the BP and MLP models across evaluation metrics including precision,sensitivity,specificity,and F1-score,achieving classification accuracies of 99.77% and 98.66% on the training and test sets,respectively. The proposed method,integrating hyperspectral imaging technology with the RF algorithm,enables rapid,non-destructive,and accurate identification of stamp pad ink types,offering a novel technical reference for the analysis of atomic seal ink traces.
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references
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