公开(公告)号：US10785483B2

公开(公告)日：2020-09-22

申请号：US14997361

申请日：2016-01-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Seung-Hwan Kim ,  Christopher Andrew Segall ,  Kiran Misra

IPC: H04N19/13 ,  H04N19/176 ,  H04N19/122 ,  H04N19/154 ,  H04N19/124 ,  H04N19/129 ,  H04N19/156 ,  H04N19/18 ,  H04N19/182 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/625 ,  H04N19/91

Abstract: In an example, an electronic device of a decoder is configured to obtain a bit stream and recover a binary symbol from the obtained bit stream. The electronic device is configured to determine whether the binary symbol is to be decoded using a modified transform skip mode. The electronic device is configured to, in response to determining that the binary symbol is not to be decoded using the modified transform skip mode, determine a first TS_Shift value, and recover video data using the first TS_Shift value. The electronic device is configured to, in response to determining that the binary symbol is to be decoded using the modified transform skip mode, determine a second TS_Shift value, and recover video data using the second TS_Shift value.

公开(公告)号：US11445197B2

公开(公告)日：2022-09-13

申请号：US17244371

申请日：2021-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/00 ,  H04N19/13 ,  H04N19/70 ,  H04N19/159 ,  H04N19/176 ,  H04N19/91 ,  H04N19/44 ,  H04N19/593 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/46 ,  H04N19/86 ,  H04N19/11 ,  H04N19/182

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.

公开(公告)号：US09930337B2

公开(公告)日：2018-03-27

申请号：US15254730

申请日：2016-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/91 ,  H04N19/44 ,  H04N19/70 ,  H04N19/593 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/46 ,  H04N19/86 ,  H04N19/182

CPC classification number: H04N19/13 ,  H04N19/11 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.

公开(公告)号：US12081762B2

公开(公告)日：2024-09-03

申请号：US17877527

申请日：2022-07-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/00 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91 ,  H04N19/11 ,  H04N19/182

CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91 ,  H04N19/11 ,  H04N19/182

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.

公开(公告)号：US09774863B2

公开(公告)日：2017-09-26

申请号：US15254768

申请日：2016-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/91 ,  H04N19/44 ,  H04N19/70 ,  H04N19/593 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/46 ,  H04N19/86 ,  H04N19/182

CPC classification number: H04N19/13 ,  H04N19/11 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selects between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selected from among one of the second set of probable modes.

公开(公告)号：US20250047854A1

公开(公告)日：2025-02-06

申请号：US18806723

申请日：2024-08-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/13 ,  H04N19/11 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.

公开(公告)号：US11006115B2

公开(公告)日：2021-05-11

申请号：US16160359

申请日：2018-10-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/00 ,  H04N19/13 ,  H04N19/70 ,  H04N19/159 ,  H04N19/176 ,  H04N19/91 ,  H04N19/44 ,  H04N19/593 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/46 ,  H04N19/86 ,  H04N19/11 ,  H04N19/182

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using a first mode if the current syntax element is intra-coded and if selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using a second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.

公开(公告)号：US09516343B2

公开(公告)日：2016-12-06

申请号：US14691674

申请日：2015-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/593 ,  H04N19/159 ,  H04N19/176 ,  H04N19/13 ,  H04N19/91 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/13 ,  H04N19/11 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding that includes at least two decoding modes, the first mode decoding the bitstream based upon a probability estimate which is based upon at least one of spatially and temporally adjacent syntax element values to a current syntax element being decoded, the second mode decoding the bitstream not based upon a probability estimate based upon other syntax elements to the current syntax element being decoded. The coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between sets probable modes with different probabilities. The coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.

公开(公告)号：US10136137B2

公开(公告)日：2018-11-20

申请号：US15861089

申请日：2018-01-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kiran Misra ,  Christopher A. Segall

IPC: H04N19/13 ,  H04N19/86 ,  H04N19/46 ,  H04N19/117 ,  H04N19/124 ,  H04N19/15 ,  H04N19/593 ,  H04N19/70 ,  H04N19/176 ,  H04N19/159 ,  H04N19/44 ,  H04N19/91 ,  H04N19/11 ,  H04N19/182

Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.