VORHERSAGE EINES BEWEGUNGSVEKTORS EINES AKTUELLEN BILDAUSSCHNITTS MIT GEOMETRISCHER FORM ODER GRÖSSE, DIE SICH VON DER FORM ODER GRÖSSE MINDESTENS EINES BENACHBARTEN REFERENZ-BILDAUSSCHNITTS UNTERSCHEIDET, KODIERUNG UND DEKODIERUNG, DIE EINE SOLCHE VORHERSAGE BENUTZEN

摘要

The invention relates to a method for predicting a motion vector (MVp1) of a partition (P1) of a current image (I _N ), from a plurality of n motion vectors. of reference associated respectively with n reference partitions which were previously coded then decoded. Being a spatial prediction of such a vector, in the case where the geometric shape / size of the current partition is different from that of k neighboring reference partitions, with k≤n, the motion vector of the current image partition is determined from a function of at least one reference motion vector which belongs to a set of k associated reference motion vectors respectively to the k neighboring reference partitions.