Fast re-parameterisation of Gaussian mixture models for robotics applications
Ben Upcroft, Suresh Kumar, Matthew Ridley, Lee‐Ling Sharon Ong, Hugh F Durrant-Whyte · QUT ePrints (Queensland University of Technology) · 2004
Autonomous navigation and picture compilation tasks require robust feature descriptions or models. Given the non-Gaussian nature of sensor observations, it will be shown that Gaussian mixture models provide a general probabilistic representation allowing analytical solutions to the update and prediction operations in the general Bayesian filtering problem. Each operation in the Bayesian filter for Gaussian mixture models multiplicatively increases the number of parameters in the representation leading to the need for a re-parameterisation step. A computationally efficient re-parameterisation step will be demonstrated resulting in a compact and accurate estimate of the true distribution. 1