7. A decoding device comprising at least one circuit configured to:access, from a decoded picture buffer, a reference image reconstructed at a size different from the size of a current image;
motion compensate a reference block of said reconstructed reference image by applying a single horizontal filter GFH and a single vertical filter GFv successively on the lines and on the columns of pixels of said reference block,
decode, for a current block of said current image, a residue block from a binary stream, and
reconstruct the current block from said residue block and from said motion compensated reference block,
wherein said single vertical filter GFv applied on a pixel s is such that GFv(s)=MCIFv(SCFv(s)), where MCIFv is a vertical motion compensation interpolation filter and SCFv is a vertical resampling filter, MCIFv and SCFv being applied jointly and wherein said single horizontal filter GFH applied on a pixel u is such that GFH(u)=MCIFH(SCFH(u)), where MCIFH is a horizontal motion compensation interpolation filter and SCFH is a horizontal resampling filter, MCIFH and SCFH being applied jointly and wherein no resampled version of said reconstructed reference image is stored in the decoded picture buffer.