Pfinder: Real-Time Tracking of the Human Body
IEEE Transactions on Pattern Analysis and Machine Intelligence
W4: Real-Time Surveillance of People and Their Activities
IEEE Transactions on Pattern Analysis and Machine Intelligence
A linear-time component-labeling algorithm using contour tracing technique
Computer Vision and Image Understanding
Omnidirectional Vision Tracking with Particle Filter
ICPR '06 Proceedings of the 18th International Conference on Pattern Recognition - Volume 03
Robust abandoned object detection using dual foregrounds
EURASIP Journal on Advances in Signal Processing
Detection of abandoned objects in crowded environments
AVSS '07 Proceedings of the 2007 IEEE Conference on Advanced Video and Signal Based Surveillance
Image segmentation in video sequences: a probabilistic approach
UAI'97 Proceedings of the Thirteenth conference on Uncertainty in artificial intelligence
Automatic detection and indexing of video-event shots for surveillance applications
IEEE Transactions on Multimedia
A multimedia presentation system using a 3D gesture interface in museums
Multimedia Tools and Applications
Journal of Electrical and Computer Engineering
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An abandoned object detection system is presented and evaluated using benchmark datasets. The detection is based on a simple mathematical model and works efficiently at QVGA resolution at which most CCTV cameras operate. The pre-processing involves a dual-time background subtraction algorithm which dynamically updates two sets of background, one after a very short interval (less than half a second) and the other after a relatively longer duration. The framework of the proposed algorithm is based on the Approximate Median model. An algorithm for tracking of abandoned objects even under occlusion is also proposed. Results show that the system is robust to variations in lighting conditions and the number of people in the scene. In addition, the system is simple and computationally less intensive as it avoids the use of expensive filters while achieving better detection results.