| 摘要 |
A method for scalable encoding of a digital image into a base layer and at least one enhancement layer comprising an up-sampling step providing at least one part of an enhancement layer, based on a corresponding part of a lower layer having a lower level than the considered enhancement layer, the area of said corresponding parts having a scale factor of 4p (p≦̸1), the lower layer comprising at least one Largest Coding Unit divisible into Q smaller Coding Units, said units being further divisible into K Prediction Units called lower Prediction Units. For a Largest Coding Unit of said lower layer not divided into smaller Coding Units, and having Prediction Units of different sizes, the corresponding portion of said enhancement layer, is divided into K subdivisions having substantially equivalent proportions as the Prediction Units of different sizes. |
