公开(公告)号：US20240244210A1

公开(公告)日：2024-07-18

申请号：US18618697

申请日：2024-03-27

Applicant: DOLBY INTERNATIONAL AB

Inventor： Yeping Su ,  Christopher A. Segall

IPC: H04N19/13 ,  H03M7/30 ,  H03M7/40 ,  H03M7/42 ,  H04L45/745 ,  H04N19/15 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

CPC classification number: H04N19/13 ,  H03M7/4031 ,  H03M7/42 ,  H03M7/6076 ,  H04L45/745 ,  H04N19/15 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: Methods and systems for improving coding decoding efficiency of video by providing a syntax modeler, a buffer, and a decoder. The syntax modeler may associate a first sequence of symbols with syntax elements. The buffer may store tables, each represented by a symbol in the first sequence, and each used to associate a respective symbol in a second sequence of symbols with encoded data. The decoder decodes the data into a bitstream using the second sequence retrieved from a table.

公开(公告)号：US20240129554A1

公开(公告)日：2024-04-18

申请号：US18384520

申请日：2023-10-27

Applicant: DOLBY INTERNATIONAL AB

Inventor： Jie Zhao ,  Christopher A. Segall ,  Louis J. Kerofsky

IPC: H04N19/91 ,  H04N19/119 ,  H04N19/15 ,  H04N19/159 ,  H04N19/17 ,  H04N19/174 ,  H04N19/192 ,  H04N19/43 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/91 ,  H04N19/119 ,  H04N19/15 ,  H04N19/159 ,  H04N19/17 ,  H04N19/174 ,  H04N19/192 ,  H04N19/43 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/136

Abstract: A method for decoding a video bitstream is disclosed. The method comprises: entropy decoding a first portion of a video bitstream, wherein first portion of video bitstream is associated with a video frame, thereby producing a first portion of decoded data; entropy decoding a second portion of video bitstream, wherein second portion of video bitstream is associated with video frame, thereby producing a second portion of decoded data, wherein entropy decoding second portion of video bitstream is independent of entropy decoding first portion of video bitstream; and reconstructing a first portion of video frame associated with video bitstream using first portion of decoded data and second portion of decoded data.

公开(公告)号：US20230052841A1

公开(公告)日：2023-02-16

申请号：US17874773

申请日：2022-07-27

Applicant: DOLBY INTERNATIONAL AB

Inventor： Louis J. Kerofsky ,  Kiran Misra ,  Christopher A. Segall

IPC: H04N19/132 ,  H04N19/184 ,  H04N19/44 ,  H04N19/176 ,  H04N19/182

Abstract: A method for decoding video includes receiving quantized coefficients representative of a block of video representative of a plurality of pixels. The quantized coefficients are dequantized based upon a function of a remainder. The dequantized coefficients are inverse transformed to determine a decoded residue.

公开(公告)号：US11431982B2

公开(公告)日：2022-08-30

申请号：US17208560

申请日：2021-03-22

Applicant: DOLBY INTERNATIONAL AB

Inventor： Louis J. Kerofsky ,  Kiran Misra ,  Christopher A. Segall

IPC: H04N19/132 ,  H04N19/184 ,  H04N19/44 ,  H04N19/176 ,  H04N19/182

Abstract: A method for decoding video includes receiving quantized coefficients representative of a block of video representative of a plurality of pixels. The quantized coefficients are dequantized based upon a function of a remainder. The dequantized coefficients are inverse transformed to determine a decoded residue.

公开(公告)号：US11102500B2

公开(公告)日：2021-08-24

申请号：US16436215

申请日：2019-06-10

Applicant: DOLBY INTERNATIONAL AB

Inventor： Kiran Misra ,  Sachin G. Deshpande ,  Christopher A. Segall

IPC: G06K9/36 ,  H04N19/503 ,  H04N19/70 ,  H04N19/44 ,  H04N19/423 ,  H04N19/587 ,  H04N19/573 ,  H04N19/58

Abstract: A method for tracking a reference picture on an electronic device is described. The method includes receiving a bitstream. The method also includes decoding a portion of the bitstream to produce a decoded reference picture. The method further includes tracking the decoded reference picture in a decoded picture buffer (DPB) with reduced overhead referencing. The method additionally includes decoding a picture based on the decoded reference picture.

公开(公告)号：US10757413B2

公开(公告)日：2020-08-25

申请号：US16522232

申请日：2019-07-25

Applicant: DOLBY INTERNATIONAL AB

Inventor： Yeping Su ,  Christopher A. Segall

IPC: H04N19/13 ,  H04L12/741 ,  H04N19/15 ,  H04N19/91 ,  H03M7/40 ,  H03M7/42 ,  H03M7/30 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61

Abstract: Methods and systems for improving coding decoding efficiency of video by providing a syntax modeler, a buffer, and a decoder. The syntax modeler may associate a first sequence of symbols with syntax elements. The buffer may store tables, each represented by a symbol in the first sequence, and each used to associate a respective symbol in a second sequence of symbols with encoded data. The decoder decodes the data into a bitstream using the second sequence retrieved from a table.

公开(公告)号：US10652585B2

公开(公告)日：2020-05-12

申请号：US16529109

申请日：2019-08-01

Applicant: DOLBY INTERNATIONAL AB

Inventor： Jie Zhao ,  Christopher A. Segall ,  Louis J. Kerofsky

IPC: H04N19/91 ,  H04N19/70 ,  H04N19/119 ,  H04N19/15 ,  H04N19/192 ,  H04N19/46 ,  H04N19/61 ,  H04N19/174 ,  H04N19/17 ,  H04N19/44 ,  H04N19/436 ,  H04N19/159 ,  H04N19/43 ,  H04N19/136 ,  H04N19/40 ,  H04N19/172 ,  H04N19/80 ,  H04N19/184

Abstract: A method for decoding a video bitstream is disclosed. The method comprises: entropy decoding a first portion of a video bitstream, wherein first portion of video bitstream is associated with a video frame, thereby producing a first portion of decoded data; entropy decoding a second portion of video bitstream, wherein second portion of video bitstream is associated with video frame, thereby producing a second portion of decoded data, wherein entropy decoding second portion of video bitstream is independent of entropy decoding first portion of video bitstream; and reconstructing a first portion of video frame associated with video bitstream using first portion of decoded data and second portion of decoded data.

公开(公告)号：US20190297340A1

公开(公告)日：2019-09-26

申请号：US16436215

申请日：2019-06-10

Applicant: DOLBY INTERNATIONAL AB

Inventor： Kiran Misra ,  Sachin G. Deshpanda ,  Christopher A. Segall

IPC: H04N19/503 ,  H04N19/58 ,  H04N19/573 ,  H04N19/70 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587

Abstract: A method for tracking a reference picture on an electronic device is described. The method includes receiving a bitstream. The method also includes decoding a portion of the bitstream to produce a decoded reference picture. The method further includes tracking the decoded reference picture in a decoded picture buffer (DPB) with reduced overhead referencing. The method additionally includes decoding a picture based on the decoded reference picture.

公开(公告)号：US09794570B2

公开(公告)日：2017-10-17

申请号：US15189307

申请日：2016-06-22

Applicant: DOLBY INTERNATIONAL AB

Inventor： Yeping Su ,  Christopher A. Segall

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H04N19/91 ,  H03M7/40 ,  H03M7/42 ,  H03M7/30 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/15 ,  H04L12/741

CPC classification number: H04N19/13 ,  H03M7/4031 ,  H03M7/42 ,  H03M7/6076 ,  H04L45/745 ,  H04N19/15 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: Methods and systems for improving coding decoding efficiency of video by providing a syntax modeler, a buffer, and a decoder. The syntax modeler may associate a first sequence of symbols with syntax elements. The buffer may store tables, each represented by a symbol in the first sequence, and each used to associate a respective symbol in a second sequence of symbols with encoded data. The decoder decodes the data into a bitstream using the second sequence retrieved from a table.

公开(公告)号：US09681144B2

公开(公告)日：2017-06-13

申请号：US15254652

申请日：2016-09-01

Applicant: DOLBY INTERNATIONAL AB

Inventor： Jie Zhao ,  Christopher A. Segall ,  Louis J. Kerofsky

IPC: H04N19/436 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/91 ,  H04N19/174 ,  H04N19/17 ,  H04N19/44 ,  H04N19/159 ,  H04N19/43 ,  H04N19/172 ,  H04N19/80

CPC classification number: H04N19/91 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/43 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80

Abstract: A method for decoding a video bitstream is disclosed. The method comprises: entropy decoding a first portion of a video bitstream, wherein first portion of video bitstream is associated with a video frame, thereby producing a first portion of decoded data; entropy decoding a second portion of video bitstream, wherein second portion of video bitstream is associated with video frame, thereby producing a second portion of decoded data, wherein entropy decoding second portion of video bitstream is independent of entropy decoding first portion of video bitstream; and reconstructing a first portion of video frame associated with video bitstream using first portion of decoded data and second portion of decoded data.