METHOD AND APPARATUS FOR ENCODING VIDEO BY USING DEBLOCKING FILTERING, AND METHOD AND APPARATUS FOR DECODING VIDEO BY USING DEBLOCKING FILTERING

摘要

A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the coding units of the maximum coding unit by prediction encoding the coding units of the maximum coding unit based on at least one prediction unit and transforming the coding units based on at least one transformation unit, wherein the maximum coding unit is hierarchically split into the coding units as a depth deepens, and the coded depths are depths where the maximum coding unit is encoded in the coding units; and performing deblocking filtering on video data being inversely transformed into a spatial domain in the coding units, in consideration of the encoding modes.

主权项

1. A method of decoding video by using deblocking filtering, the method comprising:
hierarchically splitting a maximum coding unit among one or more maximum coding units into one or more coding units; determining one or more prediction units in a coding unit among the one or more coding units using partition type information; determining one or more transform units in the coding unit; performing prediction on a prediction unit among the one or more prediction units in the coding unit and inverse-transformation on the transform unit in the coding unit, in order to generate a reconstructed coding unit; when a boundary included in the reconstructed coding unit corresponds to at least one of a boundary of the prediction unit and a boundary of the transform unit, determining a boundary strength for the boundary included in the reconstructed coding unit based on at least one of non-zero transformation coefficients, prediction mode, a motion vector, and a reference index; and performing deblocking filtering on neighboring pixels according to the boundary strength, in order to generate a filtered coding unit including deblocking-filtered pixels.