针对传统课堂考勤中耗时长、效率低等问题,提出了一种基于计算机视觉的考勤系统,利用深度学习进行人脸识别与手机入袋检测,记录学生的到课情况与手机上交情况。为将考勤信息可视化,设计了3种登录模式的综合考勤系统。实验结果表明,该系...针对传统课堂考勤中耗时长、效率低等问题,提出了一种基于计算机视觉的考勤系统,利用深度学习进行人脸识别与手机入袋检测,记录学生的到课情况与手机上交情况。为将考勤信息可视化,设计了3种登录模式的综合考勤系统。实验结果表明,该系统不仅能在毫秒级的时间内完成检测,而且平均准确率(mean Average Precision,mAP)0.5达到0.990,保证了精确率和召回率。展开更多
This paper proposes a method for detecting a helmet for thesafety of workers from risk factors and a mask worn indoors and verifying aworker’s identity while wearing a helmet and mask for security. The proposedmethod...This paper proposes a method for detecting a helmet for thesafety of workers from risk factors and a mask worn indoors and verifying aworker’s identity while wearing a helmet and mask for security. The proposedmethod consists of a part for detecting the worker’s helmet and mask and apart for verifying the worker’s identity. An algorithm for helmet and maskdetection is generated by transfer learning of Yolov5’s s-model and m-model.Both models are trained by changing the learning rate, batch size, and epoch.The model with the best performance is selected as the model for detectingmasks and helmets. At a learning rate of 0.001, a batch size of 32, and anepoch of 200, the s-model showed the best performance with a mAP of0.954, and this was selected as an optimal model. The worker’s identificationalgorithm consists of a facial feature extraction part and a classifier partfor the worker’s identification. The algorithm for facial feature extraction isgenerated by transfer learning of Facenet, and SVMis used as the classifier foridentification. The proposed method makes trained models using two datasets,a masked face dataset with only a masked face, and a mixed face datasetwith both a masked face and an unmasked face. And the model with the bestperformance among the trained models was selected as the optimal model foridentification when using a mask. As a result of the experiment, the model bytransfer learning of Facenet and SVM using a mixed face dataset showed thebest performance. When the optimal model was tested with a mixed dataset,it showed an accuracy of 95.4%. Also, the proposed model was evaluated asdata from 500 images of taking 10 people with a mobile phone. The resultsshowed that the helmet and mask were detected well and identification wasalso good.展开更多
文摘针对传统课堂考勤中耗时长、效率低等问题,提出了一种基于计算机视觉的考勤系统,利用深度学习进行人脸识别与手机入袋检测,记录学生的到课情况与手机上交情况。为将考勤信息可视化,设计了3种登录模式的综合考勤系统。实验结果表明,该系统不仅能在毫秒级的时间内完成检测,而且平均准确率(mean Average Precision,mAP)0.5达到0.990,保证了精确率和召回率。
基金supported by a grant (20015427)of Regional Customized Disaster-Safety R&D Programfunded by Ministry of Interior and Safety (MOIS,Korea)was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF)funded by the Ministry of Education (No.2022R1A6A1A03052954).
文摘This paper proposes a method for detecting a helmet for thesafety of workers from risk factors and a mask worn indoors and verifying aworker’s identity while wearing a helmet and mask for security. The proposedmethod consists of a part for detecting the worker’s helmet and mask and apart for verifying the worker’s identity. An algorithm for helmet and maskdetection is generated by transfer learning of Yolov5’s s-model and m-model.Both models are trained by changing the learning rate, batch size, and epoch.The model with the best performance is selected as the model for detectingmasks and helmets. At a learning rate of 0.001, a batch size of 32, and anepoch of 200, the s-model showed the best performance with a mAP of0.954, and this was selected as an optimal model. The worker’s identificationalgorithm consists of a facial feature extraction part and a classifier partfor the worker’s identification. The algorithm for facial feature extraction isgenerated by transfer learning of Facenet, and SVMis used as the classifier foridentification. The proposed method makes trained models using two datasets,a masked face dataset with only a masked face, and a mixed face datasetwith both a masked face and an unmasked face. And the model with the bestperformance among the trained models was selected as the optimal model foridentification when using a mask. As a result of the experiment, the model bytransfer learning of Facenet and SVM using a mixed face dataset showed thebest performance. When the optimal model was tested with a mixed dataset,it showed an accuracy of 95.4%. Also, the proposed model was evaluated asdata from 500 images of taking 10 people with a mobile phone. The resultsshowed that the helmet and mask were detected well and identification wasalso good.
