Method and apparatus for processing video signal on basis of inter prediction

Abstract

A method and device for processing a video signal are disclosed. More specifically, a method of processing a video signal based on inter prediction may include when a motion vector prediction (MVP) mode is applied to a current block, deriving a motion vector predictor based on motion information of a neighboring block of the current block; in a pre-defined layer structure in which at least one combination of horizontal and vertical components of a motion vector difference is distinguished by a plurality of layers, obtaining layer information indicating a current layer to which a motion vector difference used in inter prediction of the current block belongs; obtaining index information indicating a specific combination in the current layer; deriving the motion vector difference of the current block based on the layer information and the index information; deriving a motion vector of the current block based on the motion vector predictor and the motion vector difference; and generating a prediction block of the current block based on the motion vector of the current block.

Dependencies are inferred from the claim text.