Crime Activity Detection in Surveillance Videos Based on Developed Deep Learning Approach

In modern communities, lots of offenders are prone to recidivism, hence, there is a requirement to inhibit such criminals, especially from impending socioeconomically disadvantaged and high-crime areas that experience elevated levels of criminal activity, involving drug-related offenses, violence, theft, and other forms of anti-social behavior. Consequently, surveillance cameras have been installed in relevant institutions, and further personnel have been provided to monitor videos using various surveillance apparatus. However, relying solely on monitoring with the naked eye and manual video processing falls short of accurately evaluating the footage acquired via such cameras. To handle the issues of conventional systems, there is a need for a system that is able to classify acquired images while supporting surveillance personnel actively. Therefore, in this paper, a deep-learning approach is developed to build a crime detection system. This developed approach includes various layers necessary to perform feature extraction and classification processes and make the system capable of efficiently and accurately detecting crime activities from surveillance video frames. Besides the proposed crime activity detection system, two deep-learning approaches (EfficientNet-B7, and MobileNet-V2) are trained and assessed on the popular UCF Crime and DCSASS datasets. Generally, the proposed detection system encompasses dataset preparation and pre-processing, splitting the pre-processed crime activity image dataset, and implementing the proposed deep learning approach and other pre-trained approaches.