Weak models and cue integration for real-time tracking

Traditionally, fusion of visual information for tracking has been based on explicit models for uncertainty and integration. Most of the approaches use some form of Bayesian statistics where strong models are employed. We argue that for cases where a large number of visual features are available, weak models for integration may be employed. We analyze integration by voting where two methods are proposed and evaluated: (i) response and (ii) action fusion. The methods differ in the choice of voting space: the former integrates visual information in image space and latter in velocity space. We also evaluate four weighting techniques for integration.