Patent ID: 7965867
Filing Date: 2011-06-21
Classification: G06K,G06T

Abstract:
1. A method for tracking a number of objects or object parts in image sequences, comprising following a Bayesian-like approach to object tracking, computing, at each time a new image is available, a probability distribution over target configurations for that time, said Bayesian-like approach to object tracking comprising: computing a probability distribution for the previous image, at time (t−1), and propagating the probability distribution to the new image, at time (t), according to a probabilistic model of target dynamics, to obtain a predicted, or prior, distribution at time (t); and aligning the predicted distribution, at time (t), with the evidence contained in the new image, at time (t), according to a probabilistic model of visual likelihood, to obtain a posterior distribution at time (t); wherein aligning the predicted distribution, at time (t), of a hypothetic target configuration associated with a new frame by performing image analysis includes,