Hongwei Zhang, Lingjie Zhang, Xiaofeng Yuan, Zhihuan Song. Smoke Classification in Copper Smelting Process Based on Discrete Cosine Transform Features and Hidden Markov Model[J]. Laser & Optoelectronics Progress, 2018, 55(12): 121504
- Laser & Optoelectronics Progress
- Vol. 55, Issue 12, 121504 (2018)
Fig. 1. Block diagram. (a) Markov process; (b) hidden Markov process
Fig. 2. Smoke in the feeding and stirring process. (a) Smoke in feeding stage; (b) smoke in stirring stage
Fig. 3. Smoke in the smooth melting process. (a) Smoke 1; (b) smoke 2
Fig. 4. Smoke in the last stage of smelting process. (a) Smoke 1; (b) smoke 2
Fig. 5. Smoke in the component analysis and release stage. (a) Smoke in analysis stage; (b) smoke in release stage
Fig. 6. Sequential image sampling
Fig. 7. HMM training process
Fig. 8. Flow of smoke image classification prediction using HMM
Fig. 9. Recognition accuracy comparison for different HMM states
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Table 1. Recognition accuracy comparison for different models
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