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：US20200336745A1

公开(公告)日：2020-10-22

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 ,  H04N19/625 ,  H04N19/186 ,  H04N19/176

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：US20200304797A1

公开(公告)日：2020-09-24

申请号：US16895575

申请日：2020-06-08

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/136 ,  H04N19/167 ,  H04N19/17

Abstract: A texture region is identified within a video picture, and a texture patch is determined for the region. Clustering is performed to identify a texture region within the video image. The clustering is further refined. In particular, one or more brightness parameters of a polynomial is determined by fitting the polynomial to the identified texture region. In the identified texture region, samples are detected with a distance to the fitted polynomial exceeding a first threshold. A refined texture region is identified as the texture region excluding one or more of the detected samples. The refined texture region is encoded separately from portions of the video image not belonging to the refined texture region.