Patent ID: 8229274

Claim:
A method of decoding a video signal, comprising: decoding a bit stream of a base layer; obtaining flag information indicating whether an inter-layer prediction is carried out on a current block of an enhanced layer; obtaining information indicating an obtaining position of parameters, the parameters including at least one of information on a phase shift of a chrominance signal and offset information; obtaining the information on the phase shift of the chrominance signal based on the flag information and the information indicating the obtaining position of the parameters; obtaining the offset information based on the flag information and the information indicating the obtaining position of the parameters, the offset information indicating a position difference between a reference picture up-sampled from a picture of the base layer and a current picture including the current block; up-sampling the picture of the base layer; and decoding a bit stream of the enhanced layer based on the reference picture up-sampled from the picture of the base layer, the information on the phase shift of the chrominance signal and the offset information.