Patent ID: 9118933
Filing Date: 2015-08-25
Classification: G06F,G06T,H04N

Abstract:
1. An apparatus for motion compensation, the apparatus comprising: a luma interpolation filtering unit which is configured for 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, and 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 an integer pixel location of the luma reference picture; and a chroma interpolation filtering unit which is configured for determining, in a chroma reference picture, a chroma reference block 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 an integer pixel location of the chroma reference picture, wherein the 8-tap filter comprises eight filter coefficients, and the 4-tap filter comprises four filter coefficients.