Jing Weng, Pan Yuan, Minghe Wang, Li Li, Weiqi Jin, Wei Cao, Bingcai Sun. Thermal Imaging Detection Method of Leak Gas Clouds Based on Support Vector Machine[J]. Acta Optica Sinica, 2022, 42(9): 0911002
- Acta Optica Sinica
- Vol. 42, Issue 9, 0911002 (2022)
Fig. 1. Schematic diagram of SVM
Fig. 2. Wide band gas infrared imaging system
Fig. 3. Original images and difference images of different infrared video and their rendering pictures. (a)(e) ith frame; (b)(f) (i+5)th frame; (c)(g) difference images of ith frame and (i+5)th frame; (d)(h) color rendering of difference results on original image
Fig. 4. Samples of positive and negative datasets. (a)--(c) Positive sample images; (d)--(f) negative sample images, which are people, trees, and pumping units
Fig. 5. Optimization results for parameters C and γ by grid search method
Fig. 6. Detection results of test set. (a) Positive sample; (b) negative sample
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Table 1. Test results of SIFT-SVM algorithm
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Table 2. Test results of HOG-SVM algorithm
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Table 3. Performance comparison of two algorithms
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