Patent ID: 8520141

Claim:
Method for generating for at least one block of pixels of a picture of a sequence of high resolution progressive pictures, called high resolution sequence, at least one motion predictor from motion data associated with the pictures of a sequence of low resolution interlaced pictures, called low resolution sequence, each interlaced picture comprising a top field interlaced with a bottom field and that can be coded in frame mode or in field mode, a temporal reference being associated with each progressive picture and each field of interlaced picture, wherein said method comprises: generating said at least one motion predictor for the said at least one block of pixels of the said high resolution picture on the basis of motion data associated with at least one block of pixels of the top and/or bottom field of a low resolution picture of the same temporal reference as the said high resolution picture when the said low resolution picture is coded in field mode; and generating said at least one motion predictor for the said at least one block of pixels of the said high resolution picture on the basis of motion data associated with at least one block of pixels of the said low resolution picture, when the said high resolution picture is of the same temporal reference as the top or bottom field of the low resolution picture and the said low resolution picture is coded in frame mode.