出于对学生隐私的保护与数据集的可用性，本数据集不以视频流形式共享，仅共享模型提取后的特征数据。在这之前，您需要需要签署隐私保护协议，请通过邮箱联系w258765@gmail.com。
For the protection of student privacy and the availability of the dataset, this dataset is not shared in the form of video streams, only the feature data extracted by the model is shared.Before this, you need to sign the privacy protection agreement, please contact w258765@gmail.com.