公开(公告)号：US11109060B2

公开(公告)日：2021-08-31

申请号：US16815914

申请日：2020-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shan Gao ,  Huanbang Chen ,  Haitao Yang ,  Jiantong Zhou ,  Shan Liu ,  Sriram Sethuraman ,  Jay Shingala ,  Jeeva Raj A ,  Sagar Kotecha

IPC: H04N19/176 ,  H04N19/523 ,  H04N19/56

Abstract: An image prediction method and apparatus includes obtaining predicted motion information of an image block; determining an initial predicted block of the image block according to the predicted motion information and a reference image of the image block; performing, according to the predicted motion information, L iterative searches in the reference image using an integer pixel step size to obtain an intermediate predicted block of the image block; performing a single search in the reference image using a fractional pixel step size to obtain M predicted blocks of the image block; determining a target predicted block of the image block according to the M predicted blocks and the intermediate predicted block; and obtaining a predicted value of a pixel value of the image block according to a pixel value of the target predicted block.

公开(公告)号：US20200213616A1

公开(公告)日：2020-07-02

申请号：US16815914

申请日：2020-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shan Gao ,  Huanbang Chen ,  Haitao Yang ,  Jiantong Zhou ,  Shan Liu ,  Sriram Sethuraman ,  Jay Shingala ,  Jeeva Raj A. ,  Sagar Kotecha

IPC: H04N19/56 ,  H04N19/523 ,  H04N19/176

Abstract: An image prediction method and apparatus includes obtaining predicted motion information of an image block; determining an initial predicted block of the image block according to the predicted motion information and a reference image of the image block; performing, according to the predicted motion information, L iterative searches in the reference image using an integer pixel step size to obtain an intermediate predicted block of the image block; performing a single search in the reference image using a fractional pixel step size to obtain M predicted blocks of the image block; determining a target predicted block of the image block according to the M predicted blocks and the intermediate predicted block; and obtaining a predicted value of a pixel value of the image block according to a pixel value of the target predicted block.