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公开(公告)号：US20230051883A1
公开(公告)日：2023-02-16
申请号：US17965325
申请日：2022-10-13
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Hsiao Chiang Chuang
IPC: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: Methods, systems, and devices for performing entropy coding for a palette escape symbol in palette mode coding and decoding are described. An example method for video processing includes performing a conversion between a video having one or more video regions including a current video block and a bitstream representation of the video, wherein the bitstream representation conforms to a format rule that the current video block is coded using a palette mode coding tool, wherein a binarization of an escape symbol for the current video block uses an exponential-Golomb (EG) code of order K, wherein K is a non-negative integer that is unequal to three, and wherein the palette mode coding tool represents the current video block using a palette of representative color values and wherein the escape symbol is used for a sample of the current video block coded without using the representative color values.
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公开(公告)号：US11438597B2
公开(公告)日：2022-09-06
申请号：US17411296
申请日：2021-08-25
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu , Hsiao Chiang Chuang
IPC: H04N19/132 , H04N19/159 , H04N19/70 , H04N19/186 , H04N19/176 , H04N19/11 , H04N19/124 , H04N19/182 , H04N19/593 , H04N19/105 , H04N19/59
Abstract: Video coding and decoding methods are described. An example method includes determining, based on an applicability rule, that a differential coding mode is applicable to a conversion between a chroma video block of a video and a bitstream representation of the chroma video block, and performing, based on the determining, the conversion between the chroma video block and the bitstream representation of the chroma video block using the differential coding mode, where the chroma video block is represented in the bitstream representation using a difference between a quantized residual of an intra prediction of the chroma video block and a prediction of the quantized residual in the differential coding mode, where the intra prediction is performed in a first direction and the prediction of the quantized residual is performed in a second direction, and where the difference is represented using a differential pulse coding modulation (DPCM) representation.
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公开(公告)号：US20240056609A1
公开(公告)日：2024-02-15
申请号：US18485088
申请日：2023-10-11
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Hsiao Chiang Chuang
IPC: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
CPC classification number: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: Methods, systems, and devices for performing entropy coding for a palette escape symbol in palette mode coding and decoding are described. An example method for video processing includes performing a conversion between a video having one or more video regions including a current video block and a bitstream representation of the video, wherein the bitstream representation conforms to a format rule that the current video block is coded using a palette mode coding tool, wherein a binarization of an escape symbol for the current video block uses an exponential-Golomb (EG) code of order K, wherein K is a non-negative integer that is unequal to three, and wherein the palette mode coding tool represents the current video block using a palette of representative color values and wherein the escape symbol is used for a sample of the current video block coded without using the representative color values.
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公开(公告)号：US11570482B2
公开(公告)日：2023-01-31
申请号：US17090414
申请日：2020-11-05
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Hsiao Chiang Chuang , Yue Wang
IPC: H04N19/96 , H04N19/119 , H04N19/176 , H04N19/184 , H04N19/189 , H04N19/169 , H04N19/46
Abstract: Methods, systems and devices for using flexible and efficient partitioning techniques and in particular, restricting extended quadtree (EQT) partitioning, are described. An exemplary method for visual media decoding includes making a decision, based on one or more conditions, regarding a selective inclusion of one or more signaling bits for a partitioning process in a bitstream representation of a current visual media block of a plurality of visual media blocks, where the partitioning process splits the current visual media block into exactly four sub-blocks including at least one sub-block that has a size different from half of a width of the current visual media block times half of a height of the current visual media block; decoding, based on the bitstream representation, the four sub-blocks; and decoding, based on the four sub-blocks and the partitioning process, the current visual media block.
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公开(公告)号：US11503344B2
公开(公告)日：2022-11-15
申请号：US17671422
申请日：2022-02-14
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Hsiao Chiang Chuang
IPC: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: Methods, systems, and devices for performing entropy coding for the palette escape symbol in palette mode coding and decoding are described. An example method for video processing includes performing a conversion between a video comprising one or more video regions comprising a current video block and a bitstream representation of the video, wherein the bitstream representation conforms to a format rule that the current video block is coded using a palette mode coding tool, wherein a binarization of an escape symbol for the current video block uses an exponential-Golomb (EG) code of order K, wherein K is a non-negative integer that is unequal to three, and wherein the palette mode coding tool represents the current video block using a palette of representative color values and wherein the escape symbol is used for a sample of the current video block coded without using the representative color values.
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Patent Agency Ranking
公开(公告)号：US11431966B2
公开(公告)日：2022-08-30
申请号：US17502233
申请日：2021-10-15
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu , Hsiao Chiang Chuang
IPC: H04N19/159 , H04N19/176 , H04N19/105 , H04N19/70
Abstract: Video coding and decoding methods are described. In example method includes performing a conversion between a current video block of a video and a bitstream representation of the current video block by determining a first intra coding mode to be stored which is associated with the current video block using a differential coding mode, where the first intra coding mode associated with the current video block is determined according to a second prediction mode used by the differential coding mode, and where, in the differential coding mode, a difference between a quantized residual of an intra prediction of the current video block and a prediction of the quantized residual is represented in the bitstream representation for the current video block using a differential pulse coding modulation (DPCM) representation.
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公开(公告)号：US20210120233A1
公开(公告)日：2021-04-22
申请号：US17134082
申请日：2020-12-24
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Hsiao Chiang Chuang , Yue Wang
IPC: H04N19/105 , H04N19/119 , H04N19/96 , H04N19/159 , H04N19/176
Abstract: Devices, systems and methods for using zero-units in video and image coding are described. In a representative aspect, a method for processing video, including: determining, for a conversion between a block of the video and a bitstream of the video, that the block is a zero-unit (ZU) block based on at least one of the dimensions being a non-power-of-two number, wherein no transform and inverse-transform operations are performed on the block; performing the conversion based on the determination.
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公开(公告)号：US12231693B2
公开(公告)日：2025-02-18
申请号：US18485088
申请日：2023-10-11
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Hsiao Chiang Chuang
IPC: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: Methods, systems, and devices for performing entropy coding for a palette escape symbol in palette mode coding and decoding are described. An example method for video processing includes performing a conversion between a video having one or more video regions including a current video block and a bitstream representation of the video, wherein the bitstream representation conforms to a format rule that the current video block is coded using a palette mode coding tool, wherein a binarization of an escape symbol for the current video block uses an exponential-Golomb (EG) code of order K, wherein K is a non-negative integer that is unequal to three, and wherein the palette mode coding tool represents the current video block using a palette of representative color values and wherein the escape symbol is used for a sample of the current video block coded without using the representative color values.
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公开(公告)号：US11985323B2
公开(公告)日：2024-05-14
申请号：US17881197
申请日：2022-08-04
Applicant: Bytedance, Inc.
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu , Hsiao Chiang Chuang
IPC: H04N19/132 , H04N19/11 , H04N19/124 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/593 , H04N19/70 , H04N19/105 , H04N19/59
CPC classification number: H04N19/132 , H04N19/11 , H04N19/124 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/593 , H04N19/70 , H04N19/105 , H04N19/59
Abstract: Video coding and decoding methods are described. An example method includes determining, based on an applicability rule, that a differential coding mode is applicable to a conversion between a chroma video block of a video and a bitstream representation of the chroma video block, and performing, based on the determining, the conversion between the chroma video block and the bitstream representation of the chroma video block using the differential coding mode, where the chroma video block is represented in the bitstream representation using a difference between a quantized residual of an intra prediction of the chroma video block and a prediction of the quantized residual in the differential coding mode, where the intra prediction is performed in a first direction and the prediction of the quantized residual is performed in a second direction, and where the difference is represented using a differential pulse coding modulation (DPCM) representation.
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公开(公告)号：US11812064B2
公开(公告)日：2023-11-07
申请号：US17965325
申请日：2022-10-13
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Hsiao Chiang Chuang
IPC: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
CPC classification number: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: Methods, systems, and devices for performing entropy coding for a palette escape symbol in palette mode coding and decoding are described. An example method for video processing includes performing a conversion between a video having one or more video regions including a current video block and a bitstream representation of the video, wherein the bitstream representation conforms to a format rule that the current video block is coded using a palette mode coding tool, wherein a binarization of an escape symbol for the current video block uses an exponential-Golomb (EG) code of order K, wherein K is a non-negative integer that is unequal to three, and wherein the palette mode coding tool represents the current video block using a palette of representative color values and wherein the escape symbol is used for a sample of the current video block coded without using the representative color values.
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