| 主权项 |
1. A computer-implemented method for performing scalable video coding, comprising:
applying lower layer processing to reconstructed reference layer video data, wherein the lower layer processing comprises at least one of up-sampling for spatial scalability or tone mapping for bit-depth scalability; applying each of a plurality of fixed refining filters to the processed reconstructed reference layer video picture to generate a plurality of refined pictures, each of the plurality of refined pictures corresponding to one of the plurality of fixed refining filters being separately applied to the reconstructed reference layer video picture, wherein the plurality of fixed refining filters comprise a low frequency enhancement filter, a high frequency enhancement filter, a particular frequency band enhancement filter, a high-pass frequency filter, a band-pass frequency filter, a low-pass frequency filter, a symmetric fixed refining filter, an asymmetric fixed refining filter, a one-dimensional fixed refining filter, and a two-dimensional fixed refining filter; selecting a chosen refined picture from the plurality of refined pictures based on a comparison of each of the plurality of refined pictures to the processed reconstructed reference layer video picture; determining an individual fixed refining filter from the plurality of fixed refining filters, the individual fixed refining filter corresponding to the fixed refining filter applied to the reconstructed reference layer video picture to generate the chosen refined picture; performing inter layer prediction for an enhancement layer to generate enhancement layer video data associated with the reconstructed reference layer video picture based at least in part on the chosen refined picture of the plurality of refined pictures; generating a fixed refining filter indicator corresponding to the selected individual fixed refining filter; and encoding a scalable bitstream with compressed coefficients corresponding to the reference layer video picture, compressed coefficients corresponding to the enhancement layer video data, and the fixed refining filter indicator corresponding to the selected individual fixed refining filter. |
