Type

Conference Proceedings

Authors

Noel E. O'Connor
Suzanne Little
Kevin McGuinness
Mark Marsden

Subjects

Computer Science

Topics
anomaly detection surveillance tracking real time systems crowd analysis feature extraction tracklets image processing machine learning

Holistic features for real-time crowd behaviour anomaly detection (2016)

Abstract This paper presents a new approach to crowd behaviour anomaly detection that uses a set of efficiently computed, easily interpretable, scene-level holistic features. This low-dimensional descriptor combines two features from the literature: crowd collectiveness [1] and crowd conflict [2], with two newly developed crowd features: mean motion speed and a new formulation of crowd density. Two different anomaly detection approaches are investigated using these features. When only normal training data is available we use a Gaussian Mixture Model (GMM) for outlier detection. When both normal and abnormal training data is available we use a Support Vector Machine (SVM) for binary classification. We evaluate on two crowd behaviour anomaly detection datasets, achieving both state-of-the-art classification performance on the violent-flows dataset [3] as well as better than real-time processing performance (40 frames per second).
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> Subject = Computer Science: Image processing
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Electronic Engineering
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: INSIGHT Centre for Data Analytics
Ireland -> Dublin City University -> Subject = Computer Science: Machine learning

Full list of authors on original publication

Noel E. O'Connor, Suzanne Little, Kevin McGuinness, Mark Marsden

Experts in our system

1
Noel E. O'Connor
Dublin City University
Total Publications: 420
 
2
Suzanne Little
Dublin City University
Total Publications: 21
 
3
Kevin McGuinness
Dublin City University
Total Publications: 65
 
4
Mark Marsden
Dublin City University
Total Publications: 5