Patent ID: 9390470
Filing Date: 2016-07-12
CPC Classification: G06F,G06T,H04N

Claim Text:
1. An apparatus for motion compensation, the apparatus comprising: a processor 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, generating a luma sample of a 2/4-pixel location by applying an 8-tap interpolation filter to luma samples of an integer pixel location of the luma reference picture, and generating a luma sample of a ¼-pixel location or a ¾-pixel location included in the luma reference block by applying an interpolation filter to the luma samples of the integer pixel location of the luma reference picture without using the generated luma sample of the 2/4-pixel location, wherein the 8-tap interpolation filter comprises eight filter coefficients, and wherein the eight filter coefficients for generating the luma sample of the 2/4-pixel location are {−1, 4, −11, 40, 40, −11, 4, −1}.