TY - JOUR SN - 18761100 PB - Springer Science and Business Media Deutschland GmbH EP - 888 AV - none SP - 875 TI - Deep Learning Approach for Divergence Behavior Detection at High Density Crowd N1 - cited By 0; Conference of 1st International Conference on Artificial Intelligence for Smart Community, AISC 2020 ; Conference Date: 17 December 2020 Through 18 December 2020; Conference Code:286319 Y1 - 2022/// VL - 758 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85142720874&doi=10.1007%2f978-981-16-2183-3_83&partnerID=40&md5=9c5c7d43a72376018a4bea17f89f3ae6 A1 - Farooq, M.U. A1 - Mohamad Saad, M.N. A1 - Saleh, Y. A1 - Daud Khan, S. JF - Lecture Notes in Electrical Engineering KW - Behavioral research; Deep learning; Lyapunov methods; Time and motion study KW - Behavior detection; Convolution neural network; Divergence; Finite-time Lyapunov exponent; Human lives; Image shape; Lagrangian coherent structures; Learning approach; Motion pattern; Unexpected events KW - Motion estimation ID - scholars17392 N2 - At high-density crowd gatherings, people naturally escape from the region where any unexpected event happens. Escape in high-density crowds appears as a divergence pattern in the scene and timely detecting divergence patterns can save many human lives. In this paper, we propose to physically capture crowd normal and divergence motion patterns (or motion shapes) in form of images and train a shallow convolution neural network (CNN) on motion shape images for divergence behavior detection. Crowd motion pattern shape is obtained by extracting ridges of Lagrangian Coherent Structure (LCS) from the Finite-Time Lyapunov Exponent (FTLE) field and convert ridges into the grey-scale image. We also propose a divergence localization algorithm to pinpoint anomaly location(s). Experimentation is carried out on synthetic crowd datasets simulating normal and divergence behaviors at the high-density crowd. Comparison with state-of-the-art methods shows our method can obtain better accuracy for both divergence behavior detection and localization problems. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. ER -