Human Activity Recognition (HAR) combined with face recognition is set to play a decisive role in next-generation surveillance systems. This work presents a hybrid methodology that integrates deep learning and machine learning models for recognizing multi person activities and faces. The work is structured into two different parts: face recognition and human activity recognition. For face recognition, faces are detected using the state-of-the-art Multi-Task Cascaded Convolutional Neural Network (MTCNN) model, followed by key point extraction with the FaceNet model. The extracted embeddings are classified using a Support Vector Machine (SVM) to identify individuals. SVM model achieved classification accuracy of 0.99. For activity recognition, an ensemble model is employed to classify six activities: walking, standing, sitting, punching, kicking, and crawling. The YOLOv8 large pose model is used to extract human skeletons, which are then fed into the ensemble machine learning model for classification. This integrated system demonstrates promising performance for real-time surveillance applications that detect and recognize the multi person activity and track the person. Generation of summary report is one of the most important phase of this work where the location details of a person is stored along with activity being performed by the person. If abnormal activity is recorded, then the system will generate the early warning system that helps for better surveillance purposes
Sanikommu et al. (Wed,) studied this question.