Scalable video coding method and apparatus based on multiple layers

摘要

A scalable video encoding method and apparatus based on a plurality of layers are provided. The video encoding method for encoding a video sequence having a plurality of layers includes coding a residual of a first block existing in a first layer among the plurality of layers; recording the coded residual of the first block on a non-discardable region of a bitstream, if a second block is coded using the first block, the second block existing in a second layer among the plurality of layers and corresponding to the first block; and recording the coded residual of the first block on a discardable region of the bitstream, if a second block is coded without using the first block.