Patent ID: 6148108
Filing Date: 2000-11-14
Classification: G06T,H04N

Abstract:
A motion vector estimating system comprising:current image storing means for storing a current image being an inputted moving picture information;reference image storing means for storing a reference image information;a motion vector estimating circuit for estimating a motion in the current image stored in the current image storing means, in relation to the reference image stored in the reference image storing means; anda global motion vector estimating circuit including:feature setting means for setting and storing a feature being a partial region distinguishable from other regions of a principle object in a picture,feature-coordinates extracting means for searching the current image stored in the current image storing means, for the feature stored in the feature setting means, to identify the position of the feature on a coordinate as feature coordinates, andfeature-coordinates storing means for storing the feature coordinates extracted by the feature-coordinates extracting means,wherein said motion vector estimating circuit derives a difference between the feature coordinates stored in said feature-coordinates storing means and the feature coordinates extracted by said feature-coordinates extracting means on the basis of a feature presence information outputted from said feature-coordinates extracting means, to estimate a global motion vector, when said feature-coordinates extracting means extracts the coordinates of the feature, which has been set by said feature setting means, from said current image.