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Observation-switching linear dynamic systems for tracking humans through unexpected partial occlusions by scene objects

Peursum, Patrick, Venkatesh, Svetha and West, Geoff 2006, Observation-switching linear dynamic systems for tracking humans through unexpected partial occlusions by scene objects, in ICPR 2006 : Proceedings of the 18th International Conference on Pattern Recognition, IEEE, Washington, D. C., pp. 929-934.

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Title Observation-switching linear dynamic systems for tracking humans through unexpected partial occlusions by scene objects
Author(s) Peursum, Patrick
Venkatesh, SvethaORCID iD for Venkatesh, Svetha orcid.org/0000-0001-8675-6631
West, Geoff
Conference name International Conference on Pattern Recognition (18th : 2006 : Hong Kong, China)
Conference location Hong Kong, China
Conference dates 20-24 Aug. 2006
Title of proceedings ICPR 2006 : Proceedings of the 18th International Conference on Pattern Recognition
Editor(s) [Unknown]
Publication date 2006
Conference series International Conference on Pattern Recognition
Start page 929
End page 934
Total pages 6
Publisher IEEE
Place of publication Washington, D. C.
Keyword(s) linear dynamic systems
monocular camera
multi-camera environment
occlusions
Summary This paper focuses on the problem of tracking people through occlusions by scene objects. Rather than relying on models of the scene to predict when occlusions will occur as other researchers have done, this paper proposes a linear dynamic system that switches between two alternatives of the position measurement in order to handle occlusions as they occur. The filter automatically switches between a foot-based measure of position (assuming z = Q) to a head-based position measure (given the person's height) when an occlusion of the person's lower body occurs. No knowledge of the scene or its occluding objects is used. Unlike similar research [2, 14], the approach does not assume a fixed height for people and so is able to track humans through occlusions even when they change height during the occlusion. The approach is evaluated on three furnished scenes containing tables, chairs, desks and partitions. Occlusions range from occlusions of legs, occlusions whilst being seated and near-total occlusions where only the person's head is visible. Results show that the approach provides a significant reduction in false-positive tracks in a multi-camera environment, and more than halves the number of lost tracks in single monocular camera views.
Notes This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
ISBN 0769525210
9780769525211
ISSN 1051-4651
Language eng
Field of Research 089999 Information and Computing Sciences not elsewhere classified
Socio Economic Objective 970108 Expanding Knowledge in the Information and Computing Sciences
HERDC Research category E1.1 Full written paper - refereed
Copyright notice ©2006, IEEE
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044604

Document type: Conference Paper
Collections: School of Information Technology
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Created: Fri, 20 Apr 2012, 11:34:49 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.