公开(公告)号：US20180220148A1

公开(公告)日：2018-08-02

申请号：US15933974

申请日：2018-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sergey Yurievich IKONIN ,  Maxim Borisovitch SYCHEV ,  Victor Alexeevich STEPIN ,  Roman CHERNYAK

IPC: H04N19/51 ,  H04N19/82 ,  H04N19/176

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/523 ,  H04N19/82

Abstract: The present disclosure relates to a video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream, comprising a frame buffer configured to store at least one reference frame of the video stream, a prediction unit configured to generate a prediction block of a current block of a current frame from a reference block of the reference frame according to a motion vector having fractional-pel resolution, the fractional-pel resolution defining an integer-pel position and fractional-pel positions. The prediction unit is configured to interpolate the reference block according to the fractional-pel resolution via one of the at least three following interpolation filters: a blurring interpolation filter, a tap filter, and the tap filter followed by a sharpening filter.