Patent ID: 9424625
Filing Date: 2016-08-23
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 processor is configured for determining, in a chroma reference picture, a chroma reference block for prediction of the current block by using a chroma motion vector, and generating a chroma sample of a 4/8-pixel location included in the chroma reference block, by applying a 4-tap interpolation filter to chroma samples of an integer pixel location of the chroma reference picture, the 8-tap interpolation filter comprises eight filter coefficients, and the 4-tap interpolation filter comprises four filter coefficients.