Patent ID: 8792561

Claim:
A method of decoding video by using deblocking filtering, the method comprising: receiving a bitstream including data of a picture, information about a size of a maximum coding unit, and split information; splitting the picture into a plurality of maximum coding units using the information about the size of the maximum coding unit; hierarchically splitting the maximum coding unit into one or more coding units based on the split information; determining one or more prediction units in the coding unit using partition type information wherein the partition type information indicates one of a symmetric type and an asymmetric type; determining one or more transform units in the coding unit using size information of a transform unit, wherein the transform unit is rectangular with a horizontal size and a vertical size indicated by the size information; performing prediction on the prediction unit 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 based on at least one of non-zero transformation coefficients, prediction mode, a motion vector, and a reference index; determining deblocking filtering method including at least one of a number of filter-taps and location of pixels to be deblocking-filtered, based on at least one of the boundary strength and neighboring pixels adjacent to the boundary; and performing deblocking filtering on the neighboring pixels according to the deblocking filtering method, in order to generate a filtered coding unit including the deblocking-filtered pixels.