Patent ID: 8054890

Claim:
A method of decoding for a video signal, comprising: receiving a scalably-encoded video signal corresponding to a base layer and an enhanced layer; obtaining a first residual signal of a corresponding block in the base layer, the first residual signal indicating a difference value between a prediction pixel value and a pixel value of the corresponding block; obtaining a second residual signal of a current block in the enhanced layer from the first residual signal of the corresponding block of the base layer based on residual prediction identification information, the residual prediction identification information indicating whether a residual signal of the current block in the enhanced layer is predicted from the base layer; obtaining first weight information of the current block and a reference index from the corresponding block in the base layer; decoding the current block by using the first weight information, the reference index, and the second residual signal, wherein the second residual signal is obtained by adding the first residual signal to a third residual signal of the current block extracted from the video signal.