Method for deriving a temporal predictive motion vector, and apparatus using the method

摘要

Method of decoding a video signal using merge mode and a candidate list. A spatial merge candidate is derived S1000. A collocated reference index of a collocated picture of the current block is signaled, and the collocated picture is determined based on the collocated reference index S1010. A temporal merge candidate is obtained from the collocated picture by scaling a motion vector of a collocated block in the collocated picture S1020. A merge candidate list including the spatial and temporal candidates is generated S1030. Inter prediction is performed based on the list by obtaining a motion vector and a reference picture index of the current block based on the list and obtaining a prediction block of the current block using the motion vector and a reference picture indicated by the reference picture index of the current block. The current block is then reconstructed using the prediction samples and residual samples.