Method and apparatus for processing a video signal

摘要

The present invention discloses a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention uses a merging mode in which prediction information on a neighbor unit is used instead of transmitting prediction information on the present unit, so as to improve coding efficiency. In this case, the number of available candidate units for merging among the units in a predetermined position is determined, and information for the merging mode is acquired on the basis of the number of the available candidate units for merging. The unit to be merged is determined using the information for the merging mode, and prediction information on the unit to be merged is acquired. The prediction value for the present unit is acquired using the prediction information on the unit to be merged, and the present unit is restored using the acquired prediction value.

主权项

1. A method for decoding a video signal comprising at least one coding block with a decoding apparatus, comprising:
obtaining, with the decoding apparatus, a plurality of prediction blocks being partitioned from the coding block; obtaining, with the decoding apparatus, merge flag information of a current prediction block of the plurality of prediction blocks from the video signal; and decoding, with the decoding apparatus, the current prediction block based on prediction information of a merging candidate selected from among merging candidates when the merge flag information indicates that prediction information of the current prediction block is determined by prediction information of one of the merging candidates, the merging candidates comprising at least one neighboring prediction block adjacent to the current prediction block, wherein, when the coding block is partitioned into two prediction blocks each of which has a horizontal size greater than a vertical size, and the current prediction block is a bottom prediction block of the two prediction blocks, a top prediction block of the two prediction blocks is not included in the merging candidates.