L'invention concerne un codage/décodage par prédiction d'un bloc courant d'au moins une image courante, dans lequel on obtient un vecteur de mouvement (mv) pointant vers un bloc de référence (bref) d'une zone de pixels préalablement décodée, ladite zone de pixels comportant un artéfact ayant une position déterminée. En particulier : - on détermine (S3), en fonction de la position de l'artéfact dans ladite zone de pixels, si le bloc de référence comporte au moins une partie de l'artéfact, - le...
The invention relates to a method for decoding a stream of coded data representative of a video comprising at least one first view and a second view different from the first view, in which a reference image of the second view is previously reconstructed. For at least one block of a current image of the first view, termed the current block, a motion information item associated with said current block and representative of a displacement of said current block in said previously reconstructed re...
The invention concerns a method of encoding a current image (le) comprising a step (C2) of determining, in a first image (IR-i) different from the current image, a group of k' pixels corresponding to a current group of k pixels (k'≤k) to be encoded in the current image (lc), said encoding method being characterised in that it comprises the following steps: - calculating (C3) a motion vector between each of the k' pixels of the first image (I R-1) and a corresponding pixel of a second image (I...
Method of transcoding video data with fusion of coding units, computer program, transcoding module and telecommunications equipment associated therewith. Method of transcoding video data between a first and a second format (F1, F2), the method comprising a step of decoding the binary stream (FB1) providing decoded video data, data representative of the coding structure of the frames in the first format (F1) and, for all or some of the first coding units, prediction data, and a step of re-enco...
A method for transmitting data representing a digital hologram (H) represented by a set of atoms (ak) each having a diffraction spectrum (Sk) in an observation plane (PO) comprising the following steps: - determining an order for the sets (ak) each comprising at least one atom (ak), as a function of a distance, in the observation plane (PO), between an observation position (O) and a position (Ck) associated with the relevant set (ak); - transmitting, for at least part of said sets (ak) and in...