Abid Hussan Altalbi, Ali, et al. “Localization of Strangeness for Real Time Video in Crowd Activity Using Optical Flow and Entropy”. International Journal of Online and Biomedical Engineering (iJOE), vol. 19, no. 07, June 2023, pp. pp. 52-68, doi:10.3991/ijoe.v19i07.38869.