Suspicious Activity Classification in Classrooms using Deep Learning

Abstract

Video processing is attracting the attention of both research and industry. The existence of intelligent surveillance cameras with high processing power has paved the way for designing intelligent visual surveillance systems. Along with analyzing video for information recovery, it is nowadays used to analyze live surveillance video to detect activities. These systems are implemented in real time. The proposed work's goal is to create a method that can examine and discover suspicious behaviors in the lecture room environment. Video analytics offers the most efficient answer because it enables pointing an occasion and retrieves applicable statistics from the video recorded. The method aims to identify suspicious activities like fighting, sleeping, looking elsewhere, eating, etc. that the students might be doing. The proposed method involves breaking a video input into frames and converting it into image data because the model has been trained on images collected from the internet. Several models were tested and experimented with, including efficientnet_b2, spnasnet_100, efficientnet_b3, and mobilenetv3_large_100. Parameters such as the Learning Rate were optimized to find out the best method and create a system with the best results.