Method and apparatus for estimating input value in the presence of perturbation factor

摘要

The present invention concerns a method and a device for estimating the value of an input in a real-time system. It concerns more particularly real time interactive systems where the input is tracked using a first sensor, typically a camera in presence of a perturbing factor. The perturbing factor is estimated using a second sensor. The component of input computed values due to the perturbing factor are cancelled based on this estimation. A next input value is then estimated from the previous computed input values where the perturbing factor has been cancelled. The estimation is then corrected by applying back the estimation of the perturbing factor.