AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING

摘要

There is provided a method, apparatus and computer program product for scalable video encoding and decoding. In some embodiments, an improved method of encoding/decoding of enhancement layer pictures is introduced to enable encoding an area within an enhancement layer picture with increased quality and/or spatial resolution and with high coding efficiency. Enhancement layer sub-pictures have a size smaller than the corresponding enhancement layer pictures. They are coded with respect to the previously coded base-layer pictures or enhancement layer pictures. The enhancement information could be in the form of: increasing the fidelity of the chroma; increasing the bit-depth; increasing the quality of a region; or increasing the spatial resolution of a region.