公开(公告)号：US20200260108A1

公开(公告)日：2020-08-13

申请号：US16838954

申请日：2020-04-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen

IPC: H04N19/52 ,  H04N19/625 ,  H04N19/80 ,  H04N19/176

Abstract: Disclosed is a mechanism for selecting an interpolation filter for use in conjunction with an affine block in video coding. A motion vector is determined for a sub-block of the affine block based on control points. A sub-block size of the sub-block is also determined. The interpolation filter is selected for application to a reference block corresponding to the sub-block. The interpolation filter is selected based on the sub-block size. The motion vector of the sub-block and an offset of a current sample of the sub-block are employed to determine a reference sample at the reference block. This includes applying the interpolation filter to the reference block to determine the reference sample when the motion vector at the offset points to a fractional position at the reference block. The reference samples are employed to determine residual information in order to encode the affine block.

公开(公告)号：US20200177877A1

公开(公告)日：2020-06-04

申请号：US16786660

申请日：2020-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Hong Zhang ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/517 ,  H04N19/176

Abstract: The present disclosure provides a video image decoding method in which a size of an affine motion compensation image sub-block in an affine image block is determined based on a motion vector difference, motion vector precision, a distance between control points in the affine image block, and a size of the affine image block, where the size includes a length in a horizontal direction and a length in a vertical direction, so that a length of the affine image block in a horizontal/vertical direction is an integer multiple of the length of the affine motion compensation image sub-block in the horizontal/vertical direction.

公开(公告)号：US10404993B2

公开(公告)日：2019-09-03

申请号：US15699515

申请日：2017-09-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang Chen ,  Sixin Lin ,  Fan Liang ,  Haitao Yang

IPC: H04N19/51 ,  H04N19/513 ,  H04N19/119 ,  H04N19/537

Abstract: A picture prediction method includes: determining two pixel samples in a current picture block, and determining a candidate motion information unit set corresponding to each of the two pixel samples; determining a merged motion information unit set i including two motion information units; and predicting a pixel value of the current picture block by using an affine motion model and the merged motion information unit set i.

公开(公告)号：US20160156907A1

公开(公告)日：2016-06-02

申请号：US15016544

申请日：2016-02-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fan Liang ,  Huanbang Chen ,  Jianhua Zheng

IPC: H04N19/119 ,  H04N19/103 ,  H04N19/176 ,  H04N19/66 ,  H04N19/96 ,  H04N19/70 ,  H04N19/147

CPC classification number: H04N19/119 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/66 ,  H04N19/70 ,  H04N19/96

Abstract: A method for determining a block partitioning manner and an optimal prediction mode in video coding and a related apparatus. The method for determining a block partitioning manner in video coding that is provided in embodiments of the present disclosure may include: determining an allowable block partitioning depth set of a current block; and determining, according to the allowable block partitioning depth set, whether sub-block partitioning is performed on the current block at a current partitioning depth. Solutions in the embodiments of the present disclosure help to reduce calculation complexity in determining a block partitioning manner of a current block in a video coding process.

Abstract translation: 一种用于确定视频编码中的块分割方式和最佳预测模式的方法以及相关装置。 在本公开的实施例中提供的用于确定视频编码中的块分割方式的方法可以包括：确定当前块的容许块分割深度集合; 以及根据允许的块分割深度集合，确定是否以当前分区深度对当前块执行子块划分。 在本公开的实施例中的解决方案有助于减少在确定视频编码过程中当前块的块分割方式时的计算复杂度。