Temporal scalable coding using AVC coding tools

摘要

A temporally scalable video coding method is provided to interleave pictures from all layers of a video sequence including video sub-sequences organized using enhancement layers following a set of rules: ( 1 ) pictures in each layer are to be coded sequentially within the layer; ( 2 ) a picture from an upper layer should be coded when its temporally closest neighboring pictures among all lower layers (in both forward and backward directions if available) have been already coded; in other words, coding of an upper-layer picture requires the temporally closest neighboring pictures among all lower layers (in both forward and backward directions if available) be coded before hand. To ensure a reasonable coding efficiency, for each picture, its qualified reference pictures may be reordered so that the reference pictures are ordered using their relative temporal distance from the current picture instead of the default picture coding order.