TY  - JOUR
AU  - Alia, Ahmed
AU  - Maree, Mohammed
AU  - Chraibi, Mohcine
TI  - A Hybrid Deep Learning and Visualization Framework for Pushing Behavior Detection in Pedestrian Dynamics
JO  - Sensors
VL  - 22
IS  - 11
SN  - 1424-8220
CY  - Basel
PB  - MDPI
M1  - FZJ-2022-02263
SP  - 4040
PY  - 2022
N1  - Pilotprojekt zur Entwicklung eines palästinensisch-deutschen Forschungs- und Promotionsprogramms 'Palestinian-German Science Bridge' (01DH16027) (01DH16027)"
AB  - Crowded event entrances could threaten the comfort and safety of pedestrians, especially when some pedestrians push others or use gaps in crowds to gain faster access to an event. Studying and understanding pushing dynamics leads to designing and building more comfortable and safe entrances. Researchers—to understand pushing dynamics—observe and analyze recorded videos to manually identify when and where pushing behavior occurs. Despite the accuracy of the manual method, it can still be time-consuming, tedious, and hard to identify pushing behavior in some scenarios. In this article, we propose a hybrid deep learning and visualization framework that aims to assist researchers in automatically identifying pushing behavior in videos. The proposed framework comprises two main components: (i) Deep optical flow and wheel visualization; to generate motion information maps. (ii) A combination of an EfficientNet-B0-based classifier and a false reduction algorithm for detecting pushing behavior at the video patch level. In addition to the framework, we present a new patch-based approach to enlarge the data and alleviate the class imbalance problem in small-scale pushing behavior datasets. Experimental results (using real-world ground truth of pushing behavior videos) demonstrate that the proposed framework achieves an 86% accuracy rate. Moreover, the EfficientNet-B0-based classifier outperforms baseline CNN-based classifiers in terms of accuracy.
LB  - PUB:(DE-HGF)16
C6  - 35684663
UR  - <Go to ISI:>//WOS:000808626000001
DO  - DOI:10.3390/s22114040
UR  - https://juser.fz-juelich.de/record/907874
ER  -