Hansong Su, Tengteng Liu, Gaohua Liu, Xichu Tian. Algorithm for Student Behavior Detection Based on Neural Network[J]. Laser & Optoelectronics Progress, 2020, 57(22): 221016
- Laser & Optoelectronics Progress
- Vol. 57, Issue 22, 221016 (2020)
Fig. 1. Improved O-Net network
Fig. 2. Overall network structure
Fig. 3. Activation functional curves
Fig. 4. Loss functional curves
Fig. 5. Dataset examples. (a)(b)Stand; (c)(d) hand up; (e)(f) listen; (g)(h) write; (i)(j) sleep; (k)(l) multiple students
Fig. 6. Flow chart of behavior detection on Jetson TX2
Fig. 7. Detection accuracy of five kinds of behaviors
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Table 1. Network structure for image classification
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Table 2. Accuracies of different network structures under different activation functions and loss functions unit: %
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Table 3. Accuracy of each algorithm unit: %
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Table 4. Average time of each algorithm to process 1 frame image on Jetson TX2 unit: ms
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