Anomaly behavior detection analysis in video surveillance: a critical review
Sanjay Roka, Manoj Diwakar, Prabhishek Singh, Pragya Singh
Abstract
Anomaly detection is one of the most researched topics in computer vision and machine learning. Manual detection of an oddity in a video costs significant time and money, so there is a need for an autonomous detection system that can analyze the process and detect the anomaly in the majority of captured video datasets. Through an in-depth study on the recently published works on anomaly detection, a review is prepared to highlight the various tasks performed in abnormal behavior detection. Descriptions along with the pros and cons of various machine-learning and non-machine-learning techniques are discussed in depth. Similarly, more concentration is given to the generation adversarial network (GAN), and a comprehensive description of its design for achieving a better abnormality detection rate is provided. Moreover, a comparison of various state-of-the-art approaches on the basis of their methodologies, advantages, and disadvantages is given. We further quantitatively analyze some of the recent robust approaches at the frame level on the UCSD Ped1 dataset, with the GAN-based model achieving an astonishing performance. We provide various suggestions on how to further increase the performance of GAN for abnormal behavior detection in surveillance videos.