Patent ID: 9118916
Filing Date: 2015-08-25
Classification: H04N

Abstract:
1. A method of decoding video by using deblocking filtering, performed by at least one processor, 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 one or more maximum coding units using the information about the size of the maximum coding unit; hierarchically splitting the maximum coding unit among the one or more maximum coding units into one or more coding units based on the split information; determining one or more prediction units in a coding unit among the one or more coding units 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 among the one or more transform units is rectangular with a horizontal size and a vertical size indicated by the size information; 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 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 a boundary strength and neighboring pixels adjacent to the boundary included in the reconstructed coding unit; 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.