Summary: Machine Vision and Applications (2009) 20:271­281
DOI 10.1007/s00138-008-0181-8
ORIGINAL PAPER
Detection of object abandonment using temporal logic
Medha Bhargava · Chia-Chih Chen · M. S. Ryoo ·
J. K. Aggarwal
Received: 24 January 2008 / Revised: 22 September 2008 / Accepted: 18 November 2008 / Published online: 15 January 2009
© Springer-Verlag 2009
Abstract This paper describes a novel framework for a
smart threat detection system that uses computer vision to
capture, exploit and interpret the temporal flow of events
related to the abandonment of an object. Our approach uses
contextual information along with an analysis of the causal
progression of events to decide whether or not an alarm
should be raised. When an unattended object is detected,
the system traces it back in time to determine and record
who its most likely owner(s) may be. Through subsequent
frames, the system searches the scene for the owner and
issues an alert if no match is found for the owner over a given
period of time. Our algorithm has been successfully tested on

Source: Aggarwal, J. K. - Department of Electrical and Computer Engineering, University of Texas at Austin

Collections: Computer Technologies and Information Sciences; Engineering