VIDEO CODING WITH FINE GRANULARITY SCALABILITY USING CYCLE-ALIGNED FRAGMENTS

摘要

The disclosure describes FGS video coding techniques that use cycle-align ed fragments (CAFs). The techniques may perform cycle-based coding of FGS vi deo data block coefficients and syntax elements, and encapsulate cycles in f ragments for transmission. The fragments may be cycle-aligned such that a st art of a payload of each of the fragments substantially coincides with a sta rt of one of the cycles. In this manner, cycles can be readily accessed via individual fragments. Some cycles may be controlled with a vector mode to sc an to a predefined position within a block before moving to another block. I n this manner, the number of cycles can be reduced, reducing the number of f ragments and associated overhead. The CAFs may be entropy coded independentl y of one another so that each fragment may be readily accessed and decoded w ithout waiting for decoding of other fragments. Independent entropy coding m ay permit parallel decoding and simultaneous processing of fragments.