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 R2) different from the current image, after which a field of k' motion vectors is obtained, - predicting (C4) the pixels or the motion of the current group of k pixels in said current image (le) from the obtained field of k' motion vectors.
VIDEO ENCODING AND DECODING BY INHERITANCE OF A FIELD OF MOTION VECTORS
CAGNAZZO, MARCO
2013
Abstract
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 R2) different from the current image, after which a field of k' motion vectors is obtained, - predicting (C4) the pixels or the motion of the current group of k pixels in said current image (le) from the obtained field of k' motion vectors.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
