Patent ID: 9262804
Filing Date: 2016-02-16
CPC Classification: G06F,G06T,H04N

Claim Text:
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; generating a luma sample of a 2/4-pixel location included in the luma reference block, 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, the interpolation filter for generating the luma sample of the ¼-pixel location or the ¾-pixel location comprises a plurality of filter coefficients, and among the plurality of filter coefficients of the interpolation filter for generating the luma sample of the ¼-pixel location or the ¾-pixel location, at least two filter coefficients are different from each other.