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OCCLUSION-AWARE 3D MULTIPLE OBJECT TRACKER WITH TWO CAMERAS FOR VISUAL SURVEILLANCE
Date
2014-08-29
Author
Topcu, Osman
Alatan, Abdullah Aydın
ERCAN, ALİ ÖZER
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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An occlusion-aware multiple deformable object tracker for visual surveillance from two cameras is presented. Each object is tracked by a separate particle filter tracker, which is initiated upon detection of a new person and terminated when s/he leaves the scene. Objects are considered as 3D points at their centre of masses as if their mass density is uniform. Point objects and corresponding silhouette centroids in two views together with the epipolar geometry they satisfy resulted in a practical tracking methodology. An occlusion filter is described, that provides the tracker filters conditional occlusion probabilities of the objects, given their estimated positions. Advances over the previous work; in the computation of conditional occlusion probabilities, in incorporation of these probabilities in the particle filter, and in maintaining tracking of separating objects after long periods of moving close-by, are presented on PETS 2006, PETS 2009 and EPFL datasets.
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URI
https://hdl.handle.net/11511/56059
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Department of Electrical and Electronics Engineering, Conference / Seminar