arXiv:2509.10887cs.CV2025-09被引 5

用双摄像头+多模态分析自动识别线上考试作弊行为。

AutoOEP -- A Multi-modal Framework for Online Exam Proctoring

  • 双摄像头捕捉考生与桌面,结合人脸识别、手势追踪和物品检测。
  • 检测准确率达90.7%,禁止物品识别[email protected]为0.57。
  • 低资源运行,每秒处理2.4帧,适合大规模在线监考。

在线教育的兴起催生了对远程考试学术诚信保障系统的需求。传统人工监考难以规模化,现有自动化方案或侵入性强,或无法识别多样作弊行为。本文提出AutoOEP(自动化在线考试监考)——一个融合计算机视觉与机器学习的多模态框架。系统采用双摄像头配置,分别获取考生正面与侧面对应的视图,减少盲区。其核心包含两个并行模块:面部模块使用ArcFace持续验证身份,并结合头部姿态估计、视线追踪及口部动作分析以检测异常行为;手部模块则通过微调的YOLOv11模型检测手机、笔记等禁用物品,并跟踪手部与这些物品的距离。各模块特征被聚合后输入长短期记忆网络(LSTM),分析时序模式并实时计算作弊概率得分。我们在自建数据集上评估该系统,模拟多种考试场景。结果表明,系统在可疑行为分类任务中达到90.7%的准确率,物品检测部分[email protected]为0.57,且无需GPU即可实现约2.4帧/秒的视频处理速度。实验验证了AutoOEP在提升监考效率与考试公平性方面的有效性,显著降低对人工干预的需求。代码已开源:https://github.com/05kashyap/AutoOEP。

原文摘要 · Abstract (English)

The burgeoning of online education has created an urgent need for robust and scalable systems to ensure academic integrity during remote examinations. Traditional human proctoring is often not feasible at scale, while existing automated solutions can be intrusive or fail to detect a wide range of cheating behaviors. This paper introduces AutoOEP (Automated Online Exam Proctoring), a comprehensive, multi-modal framework that leverages computer vision and machine learning to provide effective, automated proctoring. The system utilizes a dual-camera setup to capture both a frontal view of the examinee and a side view of the workspace, minimizing blind spots. Our approach integrates several parallel analyses: the Face Module performs continuous identity verification using ArcFace, along with head pose estimation, gaze tracking, and mouth movement analysis to detect suspicious cues. Concurrently, the Hand Module employs a fine-tuned YOLOv11 model for detecting prohibited items (e.g., mobile phones, notes) and tracks hand proximity to these objects. Features from these modules are aggregated and fed into a Long Short-Term Memory (LSTM) network that analyzes temporal patterns to calculate a real-time cheating probability score. We evaluate AutoOEP on a custom-collected dataset simulating diverse exam conditions. Our system achieves an accuracy of 90.7% in classifying suspicious activities. The object detection component obtains a mean Average Precision ([email protected]) of 0.57 for prohibited items, and the entire framework processes video streams at approximately 2.4 frames per second without a GPU. The results demonstrate that AutoOEP is an effective and resource-efficient solution for automated proctoring, significantly reducing the need for human intervention and enhancing the integrity of online assessments. The code is public and can be accessed at https://github.com/05kashyap/AutoOEP.

在线监考多模态计算机视觉作弊检测

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