Inproceedings,

Combining Local Search, Neural Networks and Particle Filters to Achieve Fast and Reliable Contour Tracking

, and .
2003 IEEE International Symposium on Intelligent Signal Processing, (2003)

Abstract

LS-N-IPS is an extension of the standard N-IPS particle filter (also known as CONDENSATION in the image processing literature). The modified algorithm adds local search to the baseline algorithm: in each time step the predictions are refined in a local search procedure that utilizes the most recent observation. A critical choice in the design of LS-N-IPS is the way the local search is implemented. Here, we introduce a method based on training artificial neural networks for implementing the local search. In experiments with real-life data (visual tracking) the method is shown to improve robustness and performance significantly, surpassing the performance of previous state-of-the-art algorithms.

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