公开(公告)号：US20210120250A1

公开(公告)日：2021-04-22

申请号：US17135427

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Johannes Sauer ,  Mathias Wien

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/137 ,  H04N19/46 ,  H04N19/172

Abstract: A method for encoding a video signal includes generating an extension region of a first face of a reference frame, where the extension region includes a plurality of extension samples, and a sample value of each extension sample is based on a sample value of a sample of a second face of the reference frame, determining a use of an extension region, providing, based on the use, picture level extension usage information based on the extension region, and encoding the picture level extension usage information into an encoded video signal.

公开(公告)号：US20210084298A1

公开(公告)日：2021-03-18

申请号：US17106163

申请日：2020-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Han Gao ,  Semih Esenlik ,  Zhijie Zhao ,  Anand Meher Kotra ,  Jianle Chen

IPC: H04N19/119 ,  H04N19/70 ,  H04N19/169 ,  H04N19/176

Abstract: A method for boundary partition of a current block of a picture is provided. The method includes that a decoder receives a bitstream, where the bitstream includes a partition indicator; parses the bitstream to obtain the partition indicator; determines whether the current block is to be split based on the partition indicator; determines whether the current block is a boundary block when the current block is not to be split; and performs a boundary partition on the current block when the current block is a boundary block. The partition indicator of a same partition syntax is used no matter whether the current block is a boundary block (isB) or a non-boundary block (noB), which is benefit to keep the continuity of context-adaptive binary arithmetic coding (CABAC) engine, thus it will lead to higher coding efficiency.

公开(公告)号：US10536716B2

公开(公告)日：2020-01-14

申请号：US15819801

申请日：2017-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Yiqun Liu ,  Joern Ostermann

IPC: H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/70 ,  H04N19/82 ,  H04N19/533 ,  H04N19/567 ,  H04N19/176 ,  H04N19/147 ,  H04N19/117 ,  H04N19/513 ,  H04N19/65 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/18 ,  H04N19/593

Abstract: A frame buffer is adapted to store at least one reference frame of a video stream, said reference frame being different from a current frame of the video stream. A motion estimation unit is adapted to generate a motion vector by estimating motion between a reference block of the reference frame and a current block of the current frame. A blurring filter selection unit is adapted to select one of a plurality of blurring filters depending on the orientation of the motion vector. A filtering unit is adapted to generate a filtered reference block by applying the selected blurring filter to the reference block. A motion compensation unit is adapted to generate a filtered prediction block of the current block on the basis of the current block, the motion vector and the filtered reference block.

公开(公告)号：US20190364296A1

公开(公告)日：2019-11-28

申请号：US16533412

申请日：2019-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Max Blaeser ,  Mathias Wien

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/567

Abstract: The present disclosure provides a video encoder and a video decoder, which may both be used for partitioning a block in a current picture based on at least one partitioning predictor. The encoder and decoder are configured to select at least one reference picture and a plurality of blocks in the at least one reference picture. Further, to calculate, for each selected block, a projected location in the current picture based on a motion vector associated to the selected block in the reference picture. Then, they are configured to determine each selected block.of which the projected location spatially overlaps with the block in the current picture, to be a reference block, and generate for at least one reference block a partitioning predictor based on partitioning information associated to, for example stored in, the at least one reference picture.

公开(公告)号：US10491921B2

公开(公告)日：2019-11-26

申请号：US15819801

申请日：2017-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Yiqun Liu ,  Joern Ostermann

IPC: H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/70 ,  H04N19/82 ,  H04N19/533 ,  H04N19/567 ,  H04N19/176 ,  H04N19/147 ,  H04N19/117 ,  H04N19/513 ,  H04N19/65 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/18 ,  H04N19/593

Abstract: A frame buffer is adapted to store at least one reference frame of a video stream, said reference frame being different from a current frame of the video stream. A motion estimation unit is adapted to generate a motion vector by estimating motion between a reference block of the reference frame and a current block of the current frame. A blurring filter selection unit is adapted to select one of a plurality of blurring filters depending on the orientation of the motion vector. A filtering unit is adapted to generate a filtered reference block by applying the selected blurring filter to the reference block. A motion compensation unit is adapted to generate a filtered prediction block of the current block on the basis of the current block, the motion vector and the filtered reference block.

公开(公告)号：US20190273920A1

公开(公告)日：2019-09-05

申请号：US16388224

申请日：2019-04-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Max Blaeser ,  Mathias Wien

IPC: H04N19/117 ,  H04N19/139 ,  H04N19/119 ,  H04N19/176

Abstract: A decoding apparatus partitions a video coding block based on coding information into two or more segments including a first segment and a second segment. The coding information comprises a first segment motion vector associated with the first segment and a second segment motion vector associated with the second segment. A co-located first segment in a first reference frame is determined based on the first segment motion vector and a co-located second segment in a second reference frame is determined based on the second segment motion vector. A predicted video coding block is generated based on the co-located first segment and the co-located second segment. A divergence measure is determined based on the first segment motion vector and the second segment motion vector and a first or second filter is applied depending on the divergence measure to the predicted video coding block.