Patent ID: 8483493
Filing Date: 2013-07-09
Classification: H04N

Abstract:
1. A method for decoding a signal comprising digital images, including reference images, in a decoding terminal, implementing a variable-complexity decoding, making it possible, for at least one step of the decoding, to select at least one decoding tool from among at least two available decoding tools, wherein the method comprises: reading, in said signal comprising digital images, at least one piece of identification information, which identifies first images among said digital images, called control images, said piece of identification information indicating explicitly that a reference image of said digital images of a type I, P or B, used for prediction of other of the digital images, is degradable or not; from said piece of identification information, identification, among said digital images, said control images corresponding to the digital images that are not degradable, and second images, called intermediate images corresponding to the images that are degradable; applying, to each of said control images, for at least one step of the decoding, at least one predetermined decoding tool dictated by said signal comprising digital images; and applying, to at least one of said intermediate images, for at least one step of the decoding, at least one decoding tool selected by said decoding terminal and not dictated by said signal comprising digital images.