Patent ID: 8755436

Claim:
A method for coding pictures of a video sequence, the video sequence comprises at least one key picture and at least one intermediary picture, the method comprising the following steps: a) calculating a saliency map of at least one of the key picture(s); b) estimating for a picture portion of an intermediary picture to be coded, at least one motion vector pointing towards a portion of the key picture(s); c) motion compensating at least one portion of the saliency map using one or each estimated motion vector to obtain, for said picture portion, at least one portion of a predicted saliency map, and d) coding the picture portion according to a saliency level of each portion(s) of the predicted saliency map, wherein step d) comprises the following steps: determining the saliency level of each portion(s) of the predicted saliency map; comparing a predefined saliency level and the saliency level of the portion of the predicted saliency map, and coding the picture portion using a first coding method when the saliency level of the portion is greater than the predefined saliency level and using a second coding method when the saliency level of the portion is lower than the predefined saliency level, said first coding method being a coding method with motion compensation and residue coding and said second method being a coding method with a more precise motion compensation than the motion compensation of the first coding method and without residue coding.