公开(公告)号：US20200304798A1

公开(公告)日：2020-09-24

申请号：US16895736

申请日：2020-06-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie ZHAO ,  Bastian WANDT ,  Yiqun LIU ,  Thorsten LAUDE ,  Bodo ROSENHAHN ,  Joern OSTERMANN

IPC: H04N19/136 ,  H04N19/103 ,  H04N19/17 ,  H04N19/543

Abstract: The present disclosure relates to encoding a decoding video employing texture coding. In particular, a texture region is identified within a video picture and a texture patch is determined for said region. Moreover, a set of parameters specifies luminance within the texture region (1001) by fitting the texture region samples to a two-dimensional polynomial function of the patch determined according to the set of parameters (1040); and/or motion within the texture region by fitting motion estimated between the texture region of the video picture and an adjacent picture to a two-dimensional polynomial The texture patch and the first set of parameters are then included into a bitstream which is output of the encoder and provided in this way to the decoder which reconstructs the texture based on the patch and the function applied to the patch.

公开(公告)号：US20200236398A1

公开(公告)日：2020-07-23

申请号：US16843707

申请日：2020-04-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih ESENLIK ,  Zhijie ZHAO ,  Han GAO ,  Anand Meher KOTRA

IPC: H04N19/57 ,  H04N19/52 ,  H04N19/533 ,  H04N19/56 ,  H04N19/573

Abstract: The present disclosure relates to motion vector determination employing template matching. At first, an initial motion vector is obtained. If the initial motion vector points to a position which is fractional and thus, requires interpolation from the integer sample positions, the initial motion vector is rounded to a closest integer sample position. The rounded position is then used to define the search space for the template matching to define a refinement of the initial motion vector.

公开(公告)号：US20200021849A1

公开(公告)日：2020-01-16

申请号：US16579373

申请日：2019-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih ESENLIK ,  Anand Meher KOTRA ,  Zhijie ZHAO

IPC: H04N19/61 ,  H04N19/159 ,  H04N19/13 ,  H04N19/176

Abstract: An apparatus for decoding encoded video data is provided. The video data comprises one or more frames, each frame being partitioned into a plurality of regions, each region comprising one or more video coding blocks. The decoding apparatus comprises: a decoding unit configured to decode the encoded video data for providing a residual video coding block associated with a current video coding block of a current frame; a prediction unit configured to generate for the current video coding block a predicted video coding block; a restoration unit configured to restore the current video coding block on the basis of the residual video coding block and the predicted video coding block; and a flip unit configured to flip each region of a subset of the plurality of regions of the current frame about a flip axis of that region. Moreover, the invention relates to a corresponding encoding apparatus.

公开(公告)号：US20190289329A1

公开(公告)日：2019-09-19

申请号：US16429769

申请日：2019-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie ZHAO ,  Jens SCHNEIDER ,  Johannes SAUER ,  Mathias WIEN

IPC: H04N19/597 ,  H04N19/124 ,  H04N19/172 ,  H04N19/463 ,  H04N19/82

Abstract: An apparatus for processing 3D video data using inter-view prediction is described, the apparatus comprising a processor (201) configured to: obtain a reconstructed depth information value of a reconstructed depth information video coding block associated to a reference depth information map of a reference view, obtain a reduced range information associated to the reference depth information map; process a reconstructed distance information value to obtain an adapted reconstructed distance information value of the reconstructed depth information video coding block using a distance information value adaptation function, which is based on the reduced range information, and generate a predicted texture video coding block and/or a predicted depth information video coding block for a dependent view on the basis of the adapted reconstructed distance information value of the reconstructed depth information video coding block associated to the reference view.

公开(公告)号：US20190124356A1

公开(公告)日：2019-04-25

申请号：US16227317

申请日：2018-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie ZHAO ,  Max BLAESER ,  Mathias WIEN

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/147 ,  H04N19/119

Abstract: An encoding apparatus and a decoding apparatus for processing a video signal The invention relates to an encoding apparatus for processing a video signal comprising a plurality of frames dividable into video coding blocks. A first video coding block of a current frame of the video signal is partitioned into a first segment associated with a first segment motion vector relative to a first reference frame of the video signal and a second segment. The first video coding block is associated with a plurality of virtual partitions. Each virtual partition is associated with a respective subset of the plurality of video coding blocks of the current frame. Each video coding block of the respective subset neighbors the first video coding block and is associated with a motion vector.

公开(公告)号：US20220400282A1

公开(公告)日：2022-12-15

申请号：US17849405

申请日：2022-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih ESENLIK ,  Anand Meher KOTRA ,  Zhijie ZHAO ,  Han GAO

IPC: H04N19/513 ,  H04N19/57

Abstract: The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.

公开(公告)号：US20220394291A1

公开(公告)日：2022-12-08

申请号：US17832353

申请日：2022-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih ESENLIK ,  Ivan KRASNOV ,  Zhijie ZHAO ,  Jianle CHEN

IPC: H04N19/563 ,  H04N19/103 ,  H04N19/176 ,  H04N19/57 ,  H04N19/80 ,  H04N19/172 ,  H04N19/513 ,  H04N19/55 ,  H04N19/56 ,  H04N19/577

Abstract: The present disclosure relates to motion vector determination using template or bilateral matching and predictor generation based on the motion vector. The template or bilateral matching and/or the predictor generation use interpolation filtering. The interpolation filtering operation accesses integer sample positions within a window, and further uses padded sample values for integer sample positions outside the window, which are based on at least one sample within said window, and uses the accessed integer sample position values as well as the padded sample values to perform the template or bilateral matching and/or predictor generation.

公开(公告)号：US20210360228A1

公开(公告)日：2021-11-18

申请号：US17351783

申请日：2021-06-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Anand Meher KOTRA ,  Jianle CHEN ,  Semih ESENLIK ,  Biao WANG ,  Han GAO ,  Zhijie ZHAO

IPC: H04N19/105 ,  H04N19/129 ,  H04N19/169 ,  H04N19/176

Abstract: Embodiments provide methods and devices (encoder and/or decoder) of coding a picture. A History Based Motion Vector Prediction (HMVP) list for a current Coding Tree Unit (CTU) row within a tile of a picture is initialized and a CTU of the current CTU row is processed based on the initialized HMVP list.

公开(公告)号：US20210314604A1

公开(公告)日：2021-10-07

申请号：US17349557

申请日：2021-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih ESENLIK ,  Anand Meher KOTRA ,  Zhijie ZHAO ,  Han GAO

IPC: H04N19/56 ,  H04N19/513 ,  H04N19/55

Abstract: The embodiments disclosed herein relate to the construction of a search space for determining a motion vector for a current block of a picture in a video sequence. The search space construction is split into in two main stages, wherein a first and a second partial search space are respectively determined. Based on an initial estimate of a motion vector, a first search space is first constructed. A first and a second candidate motion of the first search space are identified according to a cost function. Based on the first and the second candidate motion vectors, a second search space is constructed. The motion vector for the current block is selected from the candidate motion vectors of the first search space and the second search space.

公开(公告)号：US20210084299A1

公开(公告)日：2021-03-18

申请号：US17107318

申请日：2020-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Han GAO ,  Zhijie ZHAO ,  Semih ESENLIK ,  Anand Meher KOTRA ,  Jianle CHEN

IPC: H04N19/119 ,  H04N19/96 ,  H04N19/176 ,  H04N19/184

Abstract: The present disclosure provides apparatuses and methods for splitting an image into coding units. An image is divided into coding tree units (CTUs) which are hierarchically partitioned. Hierarchical partitioning includes multi-type partitioning such as binary tree or quad tree splitting. For CTUs completely within the image and CTUs on the boundary, respective multi-type partition depths are chosen. The present disclosure provides for multi-type partitioning flexibility in a boundary portion of the image.