Tracking Multiple Animals in Wildlife FootageDavid Tweed, Andrew Calway, Tracking Multiple Animals in Wildlife Footage. Proceedings of the 16th International Conference on Pattern Recognition. R Kasturi, D Laurendeau, C Suen, (eds.). ISBN 0-7695-1699-8, pp. 20024–20027. August 2002. PDF, 767 Kbytes.
We describe a method for tracking animals in wildlife footage. It uses a CONDENSATION particle filtering framework driven by learnt characteristics of specific animals. The key contribution is a periodic model of animal motion based on the relative positions over time of trackable features at significant body points. We also introduce techniques for maintaining a multimodal state density within the particle filter over time to enable consistent tracking of multiple animals. Initial experiments show that the approach has considerable potential.