Dong-Gyu Lee 0001 Heung-Il Suk Sung-Kee Park Seong-Whan Lee Motion Influence Map for Unusual Human Activity Detection and Localization in Crowded Scenes. 1612-1623 2015 25 IEEE Trans. Circuits Syst. Video Technol. 10 https://doi.org/10.1109/TCSVT.2015.2395752 db/journals/tcsv/tcsv25.html#LeeSPL15