Real time tracking of multiple persons on colour image sequences

  • Authors:
  • Ghilès Mostafoui;Catherine Achard;Maurice Milgram

  • Affiliations:
  • LISIF, Paris;LISIF, Paris;LISIF, Paris

  • Venue:
  • ACIVS'05 Proceedings of the 7th international conference on Advanced Concepts for Intelligent Vision Systems
  • Year:
  • 2005

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Abstract

We propose a real time algorithm to track moving persons without any a priori knowledge neither on the model of person, nor on their size or their number, which can evolve with time. It manages several problems such as occlusion and under or over-segmentations. The first step consisting in motion detection, leads to regions that have to be assigned to trajectories. This tracking step is achieved using a new concept: elementary tracks. They allow on the one hand to manage the tracking and on the other hand, to detect the output of occlusion by introducing coherent sets of regions. Those sets enable to define temporal kinematical model, shape model or colour model. Significant results have been obtained on several sequences with ground truth as shown in results.