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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.
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2.
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.
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