VIDEO ENCODING AND DECODING WITH IMPROVED ERROR RESILIENCE

摘要

An image area to encode belongs to a first group of image areas that are to be encoded into an encoding unit which can be decoded independently of any other encoding unit. An encoding method comprises determining (S818) a first set (D819) of motion vector predictors for the image area to encode from motion vectors that are associated with other image areas belonging to the first group of image areas. A second set (D816) of motion vector predictors for the image area to encode is determined (S803) from motion vectors that are associated with image areas belonging to one or more further groups of image areas different from said first group of image areas and that are encoded into one or more further encoding units. A motion vector predictor is selected (S807) from among the motion vector predictors of the first and second sets, and information (D808) representative of the selected motion vector predictor is encoded (S814) in dependence upon the number of motion vector predictors in the first and second sets.