1. A method for generating a motion field between a current frame and a reference frame belonging to a video sequence from an input set of elementary motion fields, the method comprising: determining a plurality of candidate motion vectors between said current frame and said reference frame, each candidate motion vector being the result of the sum of a first motion vector between said current frame and an intermediary frame belonging to the video sequence and of a second motion vector between said intermediary frame and said reference frame; and selecting a motion vector among said plurality of candidate motion vectors; wherein said first motion vector belongs to said input set of elementary motion fields, said second motion vector belongs to a set of previously selected motion vectors for other current frames of the video sequence and wherein for at least a candidate motion vector, an interval between a current frame and an intermediary frame is greater than one frame.