公开(公告)号：US11343488B2

公开(公告)日：2022-05-24

申请号：US16729086

申请日：2019-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Johannes Sauer ,  Mathias Wien

IPC: H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/182 ,  H04N19/597 ,  H04N13/161 ,  H04N13/111 ,  H04N13/172 ,  H04N13/282

Abstract: A system for encoding and decoding a video coding block of a multi-view video signal is provided. A decoder is configured to decode a texture-depth video coding block (t0, d0) of a first texture frame and a first depth map associated with a first view for providing a decoded texture-depth video coding block (t0, d0) and the first depth map. A synthesized predicted texture-depth video coding block (tsyn, dsyn) of a view synthesis texture frame and a view synthesis depth map associated with a second view is generated. An inpainted synthesized predicted texture-depth video coding block is generated. Based on the impainted predicted texture-depth video block, the decoder reconstructs a texture-depth video coding block (t1, d1) of a second texture frame and a second depth map associated with the second view. An encoder is configured to encode the texture-depth video coding block in a manner that complements the decoding provided by the decoder.

公开(公告)号：US11323717B2

公开(公告)日：2022-05-03

申请号：US16895653

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: H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/186 ,  H04N19/625

Abstract: The present disclosure relates to encoding and decoding video by employing texture coding. In particular, a texture region is identified within a video picture and a texture patch is determined for the texture region. Moreover, a first set of parameters is derived specifying weighting factors for reconstructing spectral coefficients of the texture region by fitting the texture region in a spectral domain to a first function of the texture patch, the first function being defined by the first set of parameters. The texture patch and the first set of parameters are then included into a bitstream which is output by an 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：US11297345B2

公开(公告)日：2022-04-05

申请号：US17000765

申请日：2020-08-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/44

Abstract: A method for constructing a Most Probable Mode (MPM) list for intra prediction, the method comprising: determining whether a left neighboring block of a current coding block is available or not; determining whether an above neighboring block of the current coding block is available or not; using a Planar mode, a DC mode, a vertical mode (VER_IDX), a horizontal mode (HOR_IDX), an intra prediction mode corresponding to the vertical mode with an offset −4, an intra prediction mode corresponding to the vertical mode with an offset 4, to obtain a value of an intra prediction mode for the current coding block when one of conditions is satisfied. The MPM list is used to obtain an index value corresponding to a prediction mode of a picture block, so as to improve coding efficiency.

公开(公告)号：US11277608B2

公开(公告)日：2022-03-15

申请号：US17156246

申请日：2021-01-22

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/593

Abstract: The present disclosure relates to a method and device of decoding video data. The device and method use a mapping process to simplify the calculation procedure for intra prediction, to improve coding efficiency. The decoding of encoded data comprises: obtaining an indication indicating whether the intra-prediction mode for a picture block is in a set of most probable modes, MPM, or not; if the indication indicates that the intra prediction mode for the picture block is not in the set of MPMs, generating a mapping relationship between at least one intra prediction mode in the first set of intra prediction modes and at least one intra prediction mode in the set of non-MPMs; decoding the encoded data to obtain an intra prediction mode codeword for the picture block; and obtaining the intra prediction mode for the picture block according to the mapping relationship and the intra prediction mode codeword.

公开(公告)号：US11252413B2

公开(公告)日：2022-02-15

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：US20220021883A1

公开(公告)日：2022-01-20

申请号：US17489793

申请日：2021-09-30

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Semih Esenlik ,  Max Blaeser ,  Zhijie Zhao ,  Han Gao ,  Anand Meher Kotra ,  Biao Wang ,  Elena Alexandrovna Alshina

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/186 ,  H04N19/176

Abstract: A method of coding implemented by a decoding device, comprising obtaining a value of a parameter for a current block, the value of the parameter indicating a partition mode for the current block; obtaining a first prediction mode for the current block; obtaining a second prediction mode for the current block; generate a first prediction value for a chroma sample in the current block according to the first prediction mode; generate a second prediction value for a chroma sample in the current block according to the second prediction mode; obtaining a combined prediction value by combining the first prediction value and the second prediction value.

公开(公告)号：US11082714B2

公开(公告)日：2021-08-03

申请号：US16730823

申请日：2019-12-30

Applicant: Huawei Technologies Co., Ltd.

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

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

Abstract: The present invention relates 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 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 vector 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：US20210235127A1

公开(公告)日：2021-07-29

申请号：US17228306

申请日：2021-04-12

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

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

IPC: H04N19/86 ,  H04N19/82 ,  H04N19/96 ,  H04N19/176 ,  H04N19/186

Abstract: A method and image processing device are provided, including a deblocking filter. The deblocking filter modifies values of at most MA samples of the first image block as first filter output values, the at most MA samples being obtained from a column of the first image block that is perpendicular to and adjacent to the horizontal block edge; and modifies values of at most MB samples of the second image block as second filter output values, the at most MB samples being obtained from a column of the second image block that is perpendicular to and adjacent to the horizontal block edge. At most a number MA of sample values of the first image block adjacent to the block edge are modified and at most a number MB of sample values of the second image block adjacent to the block edge are modified, wherein MA

公开(公告)号：US11044469B2

公开(公告)日：2021-06-22

申请号：US16947840

申请日：2020-08-19

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N7/18 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/169

Abstract: A method for constructing a most probable mode (MPM) list for prediction process corresponding to video block is provided. The method includes determining whether a left block of a current coding block is available, in response to determining that the left block of the current coding block is available, adding an intra prediction mode of the left block into an MPM list; determining whether an above block of the current coding block is available, in response to determining that the above block of the current coding block is available, adding an intra prediction mode of the above block into the MPM list; adding an offset to the prediction mode of the left block to obtain a new prediction mode; and adding the above-offset prediction mode into the MPM list when the above-offset prediction mode is not in the MPM list. The MPM list is used to improve coding efficiency.

公开(公告)号：US20210168408A1

公开(公告)日：2021-06-03

申请号：US17171262

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kirill Aleksandrovich Malakhov ,  Hu Chen ,  Zhijie Zhao ,  Dmitry Vadimovich Novikov ,  Marat Ravilevich Gilmutdinov

IPC: H04N19/96 ,  H04N19/52 ,  H04N19/124 ,  G06N20/00 ,  H04N19/176

Abstract: A method for encoding a video image using coding parameters, adapted on the basis of motion of the video image and of an output of a machine-learning based model, wherein the machine-learning based model is input with samples of a block of the video image and motion information of the samples, and along with texture, wherein the machine-learning model segments the video image into regions based on strength of the motion determined from the motion information. An object is detected within the video based on the motion and the texture, and spatial-time coding parameters are determined based on the strength of the motion, and whether or not the detected objects moves.