METHOD AND DEVICE FOR DECODING A SCALABLE STREAM REPRESENTATIVE OF AN IMAGE SEQUENCE AND CORRESPONDING CODING METHOD AND DEVICE

摘要

A method for decoding a scalable stream comprising a base layer and at least one enhancement layer is described. The method includes:
reconstructing at least one image from the base layer,decoding a first part of the enhancement layer relating to a group of blocks into decoded enhancement data which comprise at least one item of information for identifying at least one region of the reconstructed at least one image,processing the region of the reconstructed at least one image identified by the information,obtaining residues for at least one block of the group of blocks from a second part of the enhancement layer, andreconstructing the blocks of the group from residues and from the region processed.

主权项

1. A method for decoding a scalable stream comprising a base layer and at least one enhancement layer, the method comprising:
Reconstructing at least one image from said base layer, decoding a first part of said at least one enhancement layer relating to a group of a plurality of blocks into decoded enhancement data which comprise at least one item of information for identifying at least one region of said reconstructed at least one image, processing said at least one region of said reconstructed at least one image identified by said at least one item of information, obtaining residues for at least one block of said group from a second part of said at least one enhancement layer, and reconstructing the at least one block from said residues and from said processed at least one region.