Csb-yolo: a rapid and efficient real-time algorithm for classroom student behavior detection

In recent years, the integration of artificial intelligence in education has become key to enhancing the quality of teaching. This study addresses the real-time detection of student behavior in classroom environments by proposing the Classroom Student Behavior YOLO (CSB-YOLO) model. We enhance the model’s multi-scale feature fusion capability using the Bidirectional Feature Pyramid Network (BiFPN). Additionally, we have designed a novel Efficient Re-parameterized Detection Head (ERD Head) to accelerate the model’s inference speed and introduced Self-Calibrated Convolutions (SCConv) to compensate for any potential accuracy loss resulting from lightweight design. To further optimize performance, model pruning and knowledge distillation are utilized to reduce the model size and computational demands while maintaining accuracy. This makes CSB-YOLO suitable for deployment on low-performance classroom devices while maintaining robust detection capabilities. Tested on the classroom student behavior dataset SCB-DATASET3, the distilled and pruned CSB-YOLO, with only 0.72M parameters and 4.3 Giga Floating-point Operations Per Second (GFLOPs), maintains high accuracy and exhibits excellent real-time performance, making it particularly suitable for educational environments.