Mathematics – Numerical Analysis
Scientific paper
2010-09-10
Mathematics
Numerical Analysis
Minor corrections, 23 pages, 8 figures. This is a companion paper to arXiv:1006.3100v1
Scientific paper
In recent work (arXiv:1006.3100v1), we have presented a novel approach for improving particle filters for multi-target tracking. The suggested approach was based on drift homotopy for stochastic differential equations. Drift homotopy was used to design a Markov Chain Monte Carlo step which is appended to the particle filter and aims to bring the particle filter samples closer to the observations. In the current work, we present an alternative way to append a Markov Chain Monte Carlo step to a particle filter to bring the particle filter samples closer to the observations. Both current and previous approaches stem from the general formulation of the filtering problem. We have used the currently proposed approach on the problem of multi-target tracking for both linear and nonlinear observation models. The numerical results show that the suggested approach can improve significantly the performance of a particle filter.
Maroulas Vasileios
Stinis Panagiotis
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