US 2014/0153844 A1 · INTERPOLATION METHOD AND PREDICTION METHOD USING SAME

Abstract

The present invention relates to a method of performing interpolation for prediction between screens by using a pixel sample of a current picture and a pixel sample of a reference picture, and a prediction method using same. The interpolation method according to the present invention includes: calculating movement information for generating a prediction block; and generating a partial pixel sample on the basis of an integer sample set including integer pixel samples to which an interpolation filter is applied. Here, the integer sample set includes at least one current integer sample used to generate a partial pixel sample among restored integer pixel samples of a current picture, and the partial pixel sample corresponds to the offset positions of a partial pixel unit from a predetermined reference pixel sample among integer pixel samples.

Claims19

Dependent claims

An interpolation method comprising the steps of:

calculating motion information for generating a predicted block;
and
generating fractional pixel samples on the basis of an integer sample set including integer pixel samples to which an interpolation filter is applied,
wherein the integer sample set includes at least one current integer sample used to generate the fractional pixel samples out of reconstructed integer pixel samples of a current picture, and
wherein the fractional pixel samples correspond to offset positions in the unit of fractional pixels from a predetermined reference pixel sample out of the integer pixel samples.

2 more elements

Dependencies are inferred from the claim text.

Interpolation method and prediction method using same

Life of this patent

Interpolation method and prediction method using same

Life of this patent

Abstract

Claims19