Method of encoding a video by performing filtering mesh based on the coding units,Method for decoding a video by performing filtering mesh based on the coding units,The equipment of video encoding to encode a video by performing filtering mesh based on the coding units,The equipment of video decoding to decode a video by performing filtering mesh on the basis of the units of encoding, and recording medium readable by computer.

摘要

An apparatus and method of encoding and an apparatus and method of decoding a video by performing in-loop filtering based on coding units are provided. The encoding method includes: splitting a picture into a maximum coding unit; separately determining coding units for outputting encoding results according to a coded depth for deeper coding units that are hierarchically structured according to depths indicating a number of times the coding units are spatially split from the maximum coding unit, wherein the coding units are hierarchical according to the depths in a same region in the maximum coding unit and are independent according to the coded depth in other regions; and determining a filtering unit for performing in-loop filtering so as to minimize an error between the maximum coding unit and an original picture, based on the coding units, and performing in-loop filtering based on the filtering unit.