Multi-Camera Occlusion and Sudden-Appearance-Change Detection Using   Hidden Markovian Chains
  This paper was originally submitted to Xinova as a response to a Request for Invention (RFI) on new event monitoring methods. In this paper, a new object tracking algorithm using multiple cameras for surveillance applications is proposed. The proposed system can detect sudden-appearance-changes and occlusions using a hidden Markovian statistical model. The experimental results confirm that our system detect the sudden-appearance changes and occlusions reliably. 
Xudong Ma
cs.CV