METHOD AND DEVICE FOR ENCODING/DECODING IMAGE BY INTER PREDICTION USING RANDOM BLOCK

摘要

An embodiment of the present invention relates to a method and a device for encoding/decoding an image by inter prediction using a random block. The embodiment of the present invention provides a method and a device for encoding/decoding an image, wherein the method for encoding/decoding the image comprises an image encoding step in which: a current block which is to be encoded is divided into one or more various block shapes; a divided shape of a block having an optimal encoding efficiency among the block shapes is determined; an optimal ratio factor among a plurality of ratio factors is applied to perform motion compensation, relative to a divided block of said determined divided shape; and said divided block is predicted to encode an image and decode the encoded image.