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Authors: Rene Alquezar 1 ; Nicolas Amezquita 2 and Francesc Serratosa 2

Affiliations: 1 Universitat Politècnica de Catalunya, Spain ; 2 Universitat Rovira i Virgili, Spain

Keyword(s): Object tracking in video sequences, Motion and tracking, Object crossing and occlusion.

Related Ontology Subjects/Areas/Topics: Applications ; Computer Vision, Visualization and Computer Graphics ; Human-Computer Interaction ; Methodologies and Methods ; Model-Based Object Tracking in Image Sequences ; Motion and Tracking ; Motion, Tracking and Stereo Vision ; Pattern Recognition ; Physiological Computing Systems

Abstract: This paper presents an extension of a previously reported method for object tracking in video sequences to handle the problems of object crossing and occlusion by other objects in the same class that the one followed. The proposed solution is embedded in a system that integrates recognition and tracking in a probabilistic framework. In a recent work, a method to approach the object occlusion problem was proposed that failed when the object crossed or was occluded by another object of the same class. Here we present an attempt to overcome this limitation and show some promising results. The method is based on the assumption that when two objects cross each other there is not a brusque change of the trajectories. Our system uses object recognition results provided by a neural net that are computed from colour features of image regions for each frame. The location of tracked objects is represented through probability images that are updated dynamically using both recognition and trackin g results. From these probabilities and a prediction of the motion of the object in the image, a binary decision is made for each pixel and object. (More)

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Paper citation in several formats:
Alquezar, R.; Amezquita, N. and Serratosa, F. (2009). TRACKING DEFORMABLE OBJECTS AND DEALING WITH SAME CLASS OBJECT OCCLUSION. In Proceedings of the Fourth International Conference on Computer Vision Theory and Applications (VISIGRAPP 2009) - Volume 1: VISAPP; ISBN 978-989-8111-69-2; ISSN 2184-4321, SciTePress, pages 590-594. DOI: 10.5220/0001791605900594

@conference{visapp09,
author={Rene Alquezar. and Nicolas Amezquita. and Francesc Serratosa.},
title={TRACKING DEFORMABLE OBJECTS AND DEALING WITH SAME CLASS OBJECT OCCLUSION},
booktitle={Proceedings of the Fourth International Conference on Computer Vision Theory and Applications (VISIGRAPP 2009) - Volume 1: VISAPP},
year={2009},
pages={590-594},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001791605900594},
isbn={978-989-8111-69-2},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications (VISIGRAPP 2009) - Volume 1: VISAPP
TI - TRACKING DEFORMABLE OBJECTS AND DEALING WITH SAME CLASS OBJECT OCCLUSION
SN - 978-989-8111-69-2
IS - 2184-4321
AU - Alquezar, R.
AU - Amezquita, N.
AU - Serratosa, F.
PY - 2009
SP - 590
EP - 594
DO - 10.5220/0001791605900594
PB - SciTePress

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