CN106664426B - 用于编码和解码视频数据的方法及装置 - Google Patents

用于编码和解码视频数据的方法及装置 Download PDF

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CN106664426B
CN106664426B CN201580031597.9A CN201580031597A CN106664426B CN 106664426 B CN106664426 B CN 106664426B CN 201580031597 A CN201580031597 A CN 201580031597A CN 106664426 B CN106664426 B CN 106664426B
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current picture
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CN106664426A (zh
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王业奎
阿达许·克里许纳·瑞玛苏布雷蒙尼安
伏努·亨利
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Qualcomm Inc
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
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    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
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    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146Data rate or code amount at the encoder output
    • H04N19/152Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
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    • H04N19/17Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/172Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
    • HELECTRICITY
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    • H04N19/169Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/174Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
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    • H04N19/17Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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    • H04N19/169Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/182Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
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    • H04N19/187Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a scalable video layer
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/513Processing of motion vectors
    • H04N19/517Processing of motion vectors by encoding
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    • H04N19/51Motion estimation or motion compensation
    • H04N19/573Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
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    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/58Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • HELECTRICITY
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    • H04N19/597Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding

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CN201580031597.9A 2014-06-20 2015-06-19 用于编码和解码视频数据的方法及装置 Expired - Fee Related CN106664426B (zh)

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US201462015210P 2014-06-20 2014-06-20
US62/015,210 2014-06-20
US14/743,632 US9756355B2 (en) 2014-06-20 2015-06-18 Value ranges for syntax elements in video coding
US14/743,632 2015-06-18
PCT/US2015/036600 WO2015196025A1 (en) 2014-06-20 2015-06-19 Value ranges for syntax elements in video coding

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Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749027B1 (en) 2011-08-25 2020-04-29 Sun Patent Trust Methods and apparatuses for encoding and decoding video using updated buffer description
EP3094092B1 (en) 2011-09-07 2018-06-06 Sun Patent Trust Image decoding method and image decoding apparatus
MX2013009352A (es) 2011-09-19 2014-03-31 Panasonic Corp Metodo de codificacion de imagenes, metodo de decodificacion de imagenes, aparato de codificacion de imagenes, aparato de decodificacion de imagenes y aparato de codificacion y decodificacion de imagenes.
PL3742735T3 (pl) 2011-10-19 2022-11-14 Sun Patent Trust Sposób kodowania obrazów, sposób dekodowania obrazów, urządzenie do kodowania obrazów, urządzenie do dekodowania obrazów, i urządzenie do kodowania i dekodowania obrazów
US9756355B2 (en) 2014-06-20 2017-09-05 Qualcomm Incorporated Value ranges for syntax elements in video coding
CN117294837A (zh) 2018-04-02 2023-12-26 深圳市大疆创新科技有限公司 用于图像处理的方法和图像处理装置
PT3831064T (pt) 2018-08-17 2024-05-10 Huawei Tech Co Ltd Gestão de imagens de referência em codificação de vídeo
CN110832868A (zh) * 2018-08-31 2020-02-21 深圳市大疆创新科技有限公司 编码方法、解码方法、编码设备和解码设备
US10595048B1 (en) 2018-09-13 2020-03-17 Tencent America LLC Method and device using high layer syntax architecture for coding and decoding
WO2021005348A1 (en) * 2019-07-05 2021-01-14 V-Nova International Ltd Quantization of residuals in video coding
CN118118668A (zh) * 2019-08-29 2024-05-31 Lg 电子株式会社 基于自适应环路滤波的图像编译装置和方法
EP4018671A4 (en) 2019-09-19 2022-12-07 Beijing Bytedance Network Technology Co., Ltd. Deriving reference sample positions in video coding
US11375223B2 (en) 2019-09-20 2022-06-28 Tencent America LLC Method for signaling output layer set with sub-picture
AU2020354918B2 (en) * 2019-09-24 2026-03-05 Huawei Technologies Co., Ltd. Disallowing unnecessary layers in multi-layer video bitstreams
AU2020354925B2 (en) * 2019-09-24 2026-03-12 Huawei Technologies Co., Ltd. Signaling of DPB parameters for multi-layer video bitstreams
CN117956189A (zh) * 2019-09-24 2024-04-30 华为技术有限公司 支持空间可适性和snr可适性的ols
MX2022003836A (es) 2019-10-05 2022-05-12 Beijing Bytedance Network Tech Co Ltd Se?alizacion basada en los niveles de las herramientas de codificacion de video.
KR20250093594A (ko) 2019-10-07 2025-06-24 후아웨이 테크놀러지 컴퍼니 리미티드 서브 비트스트림 추출의 오류 방지
JP7414980B2 (ja) 2019-10-13 2024-01-16 北京字節跳動網絡技術有限公司 参照ピクチャリサンプリングと映像コーディングツールとの間の相互作用
US11477487B2 (en) * 2019-12-10 2022-10-18 Zte (Uk) Limited Subpicture signaling in video coding
US11375232B2 (en) 2019-12-10 2022-06-28 Zte (Uk) Limited Sub picture signaling in video coding
JP7431330B2 (ja) 2019-12-26 2024-02-14 バイトダンス インコーポレイテッド ビデオコーディングにおけるプロファイル、層及びレイヤの指示
JP7425204B2 (ja) 2019-12-26 2024-01-30 バイトダンス インコーポレイテッド ビデオビットストリームにおける仮想参照デコーダパラメータのシグナリングに対する制約
WO2021134047A1 (en) * 2019-12-26 2021-07-01 Bytedance Inc. Profile tier level parameter set in video coding
US11343524B2 (en) * 2019-12-27 2022-05-24 Tencent America LLC Method for adaptation parameter set reference and constraints in coded video stream
JP7422881B2 (ja) 2019-12-27 2024-01-26 バイトダンス インコーポレイテッド パラメータセットにおけるサブピクチャシグナリング
WO2021129866A1 (en) 2019-12-27 2021-07-01 Beijing Bytedance Network Technology Co., Ltd. Signaling of slice types in video pictures headers
WO2021142364A1 (en) 2020-01-09 2021-07-15 Bytedance Inc. Signalling of high level syntax indication
US11778215B2 (en) * 2020-02-28 2023-10-03 Qualcomm Incorporated Coding output layer set data and conformance window data of high level syntax for video coding
JP7681036B2 (ja) * 2020-03-26 2025-05-21 アリババ グループ ホウルディング リミテッド 映像パラメータセット又はシーケンスパラメータセットを符号化又は復号化するための方法
US11297350B1 (en) * 2020-03-27 2022-04-05 Tencent America LLC Method for output layer set for multilayered video stream
CN115428438B (zh) * 2020-03-27 2025-10-21 字节跳动有限公司 视频编解码中的水平信息
WO2021201540A1 (ko) * 2020-03-30 2021-10-07 엘지전자 주식회사 Ptl 관련 정보를 시그널링하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 컴퓨터 판독 가능한 기록 매체
JP7492026B2 (ja) 2020-03-30 2024-05-28 エルジー エレクトロニクス インコーポレイティド Hrdパラメータをシグナリングする画像符号化/復号化方法及び装置、並びにビットストリームを保存したコンピュータ可読記録媒体
WO2021201513A1 (ko) * 2020-03-30 2021-10-07 엘지전자 주식회사 Sps 내 ptl, dpb 및 hrd 관련 정보를 시그널링하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 컴퓨터 판독 가능한 기록 매체
WO2021201548A1 (ko) * 2020-03-30 2021-10-07 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
CN115668927A (zh) * 2020-04-01 2023-01-31 Lg电子株式会社 基于输出层集合确定是否参考参数集的图像编码/解码方法和设备及发送比特流的方法
WO2021222040A1 (en) 2020-04-27 2021-11-04 Bytedance Inc. Virtual boundaries in video coding
CN115516860B (zh) * 2020-05-04 2025-01-17 Lg电子株式会社 图像解码方法及其设备
EP4154534A1 (en) * 2020-05-22 2023-03-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Processing of output layer sets of coded video
KR20230017817A (ko) * 2020-05-25 2023-02-06 엘지전자 주식회사 멀티 레이어 기반 영상 코딩 장치 및 방법
WO2021252394A1 (en) * 2020-06-08 2021-12-16 Bytedance Inc. Subpicture level information signaling in supplemental enhancement messages

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103621091A (zh) * 2011-04-26 2014-03-05 Lg电子株式会社 管理参考图片列表的方法及使用该方法的装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10003817B2 (en) * 2011-11-07 2018-06-19 Microsoft Technology Licensing, Llc Signaling of state information for a decoded picture buffer and reference picture lists
US9210430B2 (en) 2012-01-19 2015-12-08 Sharp Kabushiki Kaisha Reference picture set signaling and restriction on an electronic device
US20140092988A1 (en) 2012-09-28 2014-04-03 Sharp Laboratories Of America, Inc. Systems and methods for reference picture set extension
US9807421B2 (en) 2013-04-05 2017-10-31 Sharp Kabushiki Kaisha NAL unit type restrictions
US20140301477A1 (en) * 2013-04-07 2014-10-09 Sharp Laboratories Of America, Inc. Signaling dpb parameters in vps extension and dpb operation
US9756355B2 (en) 2014-06-20 2017-09-05 Qualcomm Incorporated Value ranges for syntax elements in video coding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103621091A (zh) * 2011-04-26 2014-03-05 Lg电子株式会社 管理参考图片列表的方法及使用该方法的装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MV-HEVC Draft Text 8;Gerhard Tech;《Joint Collaborative Team on 3D Video Coding Extensions of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11(8th Meeting: Valencia, ES, 29 March – 4 April 2014)》;20140603;参见第4页8.1节-第148页G.15节 *
MV-HEVC/SHVC HLS: On non-HEVC base layer;Miska M. Hannuksela;《Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11(16th Meeting: San José, US, 9–17 Jan. 2014)》;20140103;全文 *

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BR112016029751A2 (pt) 2017-08-22
JP2017523683A (ja) 2017-08-17
EP3158746A1 (en) 2017-04-26
CA2952973A1 (en) 2015-12-23
CA2950921C (en) 2023-01-10
ES2898663T3 (es) 2022-03-08
CN106464919B (zh) 2019-10-18
WO2015196025A1 (en) 2015-12-23
CA2950921A1 (en) 2015-12-23
EP3158763A1 (en) 2017-04-26
WO2015196034A1 (en) 2015-12-23
BR112016029787A2 (pt) 2017-08-22
KR20170020793A (ko) 2017-02-24
US20150373377A1 (en) 2015-12-24
CN106464919A (zh) 2017-02-22
EP3158746B1 (en) 2021-10-20
JP6377778B2 (ja) 2018-08-22
BR112016029787A8 (pt) 2021-07-13
US20150373361A1 (en) 2015-12-24
KR20170020794A (ko) 2017-02-24
JP6453365B2 (ja) 2019-01-16
KR102387848B1 (ko) 2022-04-15
US9756355B2 (en) 2017-09-05

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