arXiv:2410.07834cs.CV2024-10被引 10

用多尺度变形注意力提升教室学生行为检测精度

Multi-Scale Deformable Transformers for Student Learning Behavior Detection in Smart Classroom

  • 采用大卷积核与多尺度特征融合提取视觉信息
  • 在自建数据集上达到mAP 0.626,AP50提升6%
  • 适合智能教室中复杂场景下的多人行为分析

人工智能正快速融入现代教育系统,尤其在课堂学生行为监测方面。传统人工观察效率低下,亟需计算机视觉替代方案。然而现有目标检测模型面临遮挡、模糊和尺度差异等挑战,尤其在动态复杂的教室环境中更为突出,且需处理多目标检测。为此,本文提出学生学习行为检测的多尺度变形注意力框架(SCB-DETR),利用大卷积核进行上游特征提取并实现多尺度特征融合,显著增强对多尺度与遮挡目标的检测能力。该方法构建端到端检测框架,简化流程并持续优于其他深度学习模型。基于自建的Student Classroom Behavior(SCBehavior)数据集,SCB-DETR在测试中取得0.626的mAP,相较基线模型提升1.5%,AP50提升6%。结果表明,该模型在处理学生行为分布不均及动态环境下的精准检测方面具有显著优势。

原文摘要 · Abstract (English)

The integration of Artificial Intelligence into the modern educational system is rapidly evolving, particularly in monitoring student behavior in classrooms, a task traditionally dependent on manual observation. This conventional method is notably inefficient, prompting a shift toward more advanced solutions like computer vision. However, existing target detection models face significant challenges such as occlusion, blurring, and scale disparity, which are exacerbated by the dynamic and complex nature of classroom settings. Furthermore, these models must adeptly handle multiple target detection. To overcome these obstacles, we introduce the Student Learning Behavior Detection with Multi-Scale Deformable Transformers (SCB-DETR), an innovative approach that utilizes large convolutional kernels for upstream feature extraction, and multi-scale feature fusion. This technique significantly improves the detection capabilities for multi-scale and occluded targets, offering a robust solution for analyzing student behavior. SCB-DETR establishes an end-to-end framework that simplifies the detection process and consistently outperforms other deep learning methods. Employing our custom Student Classroom Behavior (SCBehavior) Dataset, SCB-DETR achieves a mean Average Precision (mAP) of 0.626, which is a 1.5% improvement over the baseline model's mAP and a 6% increase in AP50. These results demonstrate SCB-DETR's superior performance in handling the uneven distribution of student behaviors and ensuring precise detection in dynamic classroom environments.

行为识别多尺度检测智能教室

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