Method and apparatus for coding video, and method and apparatus for decoding video accompanied by inter prediction using collocated image

摘要

The present invention suggests a method for inter prediction comprising the steps of: deciding a collocated block with respect to a current block of a current image from blocks of an image which is recovered prior to the current image; deciding one collocated reference list by preliminarily confirming whether a first reference list is referenced from reference lists of the collocated block, and then selectively confirming whether a second reference list is referenced according to whether the first reference list is referenced; and performing inter prediction with respect to the current block by using a reference block of the current block, which is decided according to movement information of the collocated reference list.