Apparatus and method for managing reference frame buffer in layered video coding

摘要

An apparatus for encoding or decoding an image by storing and managing a reference frame used to encode or decode an encoding target image frame. To encode image frames classified into a plurality of layers, the apparatus may include a layer identification unit identifying a layer that includes a first encoding target frame, a frame storage unit storing at least one storage frame associated with the first encoding target frame, a reference frame selector selecting a reference frame from the at least one storage frame, based on the identified layer, and a frame encoder encoding the first encoding target frame by referring to the selected reference frame, wherein the frame storage unit stores the first encoding target frame as a storage frame associated with a second encoding target frame.