Patent Document ID: 20150237357
Application ID: 14632155
Patent Status: 0

Claim One:
1. A method of motion compensation, the method comprising: determining, in a luma reference picture, a luma reference block for prediction of a current block, by using a luma motion vector of the current block; generating a luma sample of a 2/4-pixel location included in the luma reference block by applying an 8-tap filter to luma samples of a integer pixel location of the luma reference picture; determining, in a chroma reference picture, a chroma reference block for prediction of a current block, by using a chroma motion vector of the current block; and generating at least one chroma sample of at least one of ⅛, 2/8 and ⅜-pixel locations included in the chroma reference block by applying a 4-tap filter to chroma samples of a integer pixel location of the chroma reference picture, wherein the 8-tap filter includes eight filter coefficients, the 4-tap filter includes four filter coefficients for interpolation, and among eight filter coefficients of the 8-tap filter for generating the luma pixel of the 2/4-pixel, four consecutive filter coefficients including a first filter coefficient are arranged in reverse order against four consecutive filter coefficients including a last filter coefficient.