CN105052152B - 用于视频译码及压缩的设备、方法及非暂时性计算机可读媒体 - Google Patents

用于视频译码及压缩的设备、方法及非暂时性计算机可读媒体 Download PDF

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CN105052152B
CN105052152B CN201480017622.3A CN201480017622A CN105052152B CN 105052152 B CN105052152 B CN 105052152B CN 201480017622 A CN201480017622 A CN 201480017622A CN 105052152 B CN105052152 B CN 105052152B
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picture
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video
current image
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CN105052152A (zh
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陈建乐
李想
克里希纳坎斯·拉帕卡
王益魁
马尔塔·卡切维奇
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Qualcomm Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods 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
    • H04N19/17—Methods 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
    • H04N19/176—Methods 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods 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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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CN201480017622.3A 2013-04-01 2014-03-28 用于视频译码及压缩的设备、方法及非暂时性计算机可读媒体 Active CN105052152B (zh)

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US201361807283P 2013-04-01 2013-04-01
US61/807,283 2013-04-01
US201361809804P 2013-04-08 2013-04-08
US61/809,804 2013-04-08
US14/228,031 2014-03-27
US14/228,031 US9998735B2 (en) 2013-04-01 2014-03-27 Inter-layer reference picture restriction for high level syntax-only scalable video coding
PCT/US2014/032162 WO2014165401A1 (en) 2013-04-01 2014-03-28 Inter-layer reference picture restriction for high level syntax-only scalable video coding

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CN201480018177.2A Active CN105103560B (zh) 2013-04-01 2014-03-28 用于仅高级语法可缩放视频译码的层间参考图片限制

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EP (2) EP2982122A1 (enExample)
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KR (4) KR20150137098A (enExample)
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Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9992490B2 (en) 2012-09-26 2018-06-05 Sony Corporation Video parameter set (VPS) syntax re-ordering for easy access of extension parameters
US10219006B2 (en) 2013-01-04 2019-02-26 Sony Corporation JCTVC-L0226: VPS and VPS_extension updates
US10419778B2 (en) * 2013-01-04 2019-09-17 Sony Corporation JCTVC-L0227: VPS_extension with updates of profile-tier-level syntax structure
US9992493B2 (en) 2013-04-01 2018-06-05 Qualcomm Incorporated Inter-layer reference picture restriction for high level syntax-only scalable video coding
WO2014163418A1 (ko) 2013-04-04 2014-10-09 한국전자통신연구원 영상 부호화/복호화 방법 및 장치
KR20140121315A (ko) * 2013-04-04 2014-10-15 한국전자통신연구원 참조 픽처 리스트를 이용한 다 계층 기반의 영상 부호화/복호화 방법 및 그 장치
US9532067B2 (en) * 2013-04-05 2016-12-27 Sharp Kabushiki Kaisha Decoding of inter-layer reference picture set and reference picture list construction
CN105103558B (zh) * 2013-04-12 2018-09-11 瑞典爱立信有限公司 构建层间参考图像列表
CN111510725B (zh) 2013-07-15 2022-12-16 Ge视频压缩有限责任公司 网络装置和差错处理
WO2015053287A1 (ja) * 2013-10-08 2015-04-16 シャープ株式会社 画像復号装置、画像符号化装置、および、符号化データ変換装置
CN105519119B (zh) * 2013-10-10 2019-12-17 夏普株式会社 图像解码装置
KR102246545B1 (ko) * 2013-10-12 2021-04-30 삼성전자주식회사 멀티 레이어 비디오 부호화 방법 및 장치, 멀티 레이어 비디오 복호화 방법 및 장치
ES2849565T3 (es) * 2014-04-25 2021-08-19 Sony Group Corp Dispositivo de transmisión, método de transmisión, dispositivo de recepción y método de recepción
CN107852502B (zh) 2015-07-28 2021-07-20 杜比实验室特许公司 用于增强视频信号的位深的方法、编码器、解码器和系统
US11445223B2 (en) * 2016-09-09 2022-09-13 Microsoft Technology Licensing, Llc Loss detection for encoded video transmission
CN117857812A (zh) * 2018-02-20 2024-04-09 弗劳恩霍夫应用研究促进协会 支持变化的分辨率和/或有效地处理区域级打包的图片/视频编码
EP3891994A1 (en) 2018-12-07 2021-10-13 InterDigital VC Holdings, Inc. Managing coding tools combinations and restrictions
WO2020228692A1 (en) 2019-05-12 2020-11-19 Beijing Bytedance Network Technology Co., Ltd. Motion prediction from temporal blocks with reference picture resampling
MX2021013978A (es) * 2019-05-15 2022-04-01 Huawei Tech Co Ltd Un codificador, un decodificador y metodos correspondientes.
US11233988B2 (en) * 2019-05-17 2022-01-25 Qualcomm Incorporated Reference picture resampling and inter-coding tools for video coding
CN120602665A (zh) * 2019-06-04 2025-09-05 华为技术有限公司 视频码流编解码方法及对应的编解码器和介质
EP4000267A4 (en) 2019-08-23 2023-02-22 Beijing Bytedance Network Technology Co., Ltd. Clipping in reference picture resampling
CN114424573B (zh) 2019-09-19 2024-03-26 北京字节跳动网络技术有限公司 视频编解码中的参考样点位置推导
US11418813B2 (en) * 2019-09-20 2022-08-16 Tencent America LLC Signaling of inter layer prediction in video bitstream
US11310492B2 (en) * 2019-09-20 2022-04-19 Tencent America LLC Signaling of inter layer prediction in video bitstream
KR102895409B1 (ko) * 2019-09-24 2025-12-04 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 점진적 디코더 리프레시 코딩 및 스케일가능 코딩을 위한 인코더, 디코더 및 데이터 스트림
CN110545431B (zh) * 2019-09-27 2023-10-24 腾讯科技（深圳）有限公司 视频解码方法及装置、视频编码方法及装置
MX2022004193A (es) * 2019-10-07 2022-05-02 Huawei Tech Co Ltd Un codificador, un decodificador y metodos correspondientes.
KR20220069114A (ko) 2019-10-07 2022-05-26 후아웨이 테크놀러지 컴퍼니 리미티드 다중 계층 비디오 스트림에서 중복 시그널링의 방지
EP4029274A4 (en) 2019-10-13 2022-11-30 Beijing Bytedance Network Technology Co., Ltd. INTERPLAY BETWEEN REFERENCE IMAGE CAPTURE AND VIDEO ENCODING TOOLS
CN114641992B (zh) 2019-10-23 2024-04-05 北京字节跳动网络技术有限公司 参考图片重采样的信令
JP7395727B2 (ja) 2019-10-23 2023-12-11 北京字節跳動網絡技術有限公司 ビデオ・データを処理する方法、装置及び記憶方法
US11438611B2 (en) 2019-12-11 2022-09-06 Hfi Innovation Inc. Method and apparatus of scaling window constraint for worst case bandwidth consideration for reference picture resampling in video coding
CN114846786B (zh) 2019-12-26 2025-07-08 字节跳动有限公司 对视频比特流中的假设参考解码器参数的信令的约束
EP4310796A3 (en) 2019-12-26 2024-04-10 ByteDance Inc. Profile, tier and layer indication in video coding
EP4066502A4 (en) 2019-12-27 2023-01-18 Beijing Bytedance Network Technology Co., Ltd. Signaling of slice types in video pictures headers
KR20220121804A (ko) 2019-12-27 2022-09-01 바이트댄스 아이엔씨 파라미터 세트들에서의 서브픽처 시그널링
US11146824B2 (en) * 2019-12-30 2021-10-12 Mediatek Inc. Video encoding or decoding methods and apparatuses related to high-level information signaling
WO2021142364A1 (en) 2020-01-09 2021-07-15 Bytedance Inc. Signalling of high level syntax indication
US11445176B2 (en) * 2020-01-14 2022-09-13 Hfi Innovation Inc. Method and apparatus of scaling window constraint for worst case bandwidth consideration for reference picture resampling in video coding
CN120512546A (zh) 2020-03-20 2025-08-19 字节跳动有限公司 对子图片的参考图片列表的约束
WO2021195026A1 (en) 2020-03-27 2021-09-30 Bytedance Inc. Level information in video coding
WO2021216448A1 (en) * 2020-04-20 2021-10-28 Bytedance Inc. Constraints on reference picture lists
WO2021222038A1 (en) * 2020-04-27 2021-11-04 Bytedance Inc. Sublayers information in video coding
WO2021235759A1 (ko) * 2020-05-22 2021-11-25 엘지전자 주식회사 비디오 또는 영상 코딩 시스템에서의 다중 레이어 기반 영상 코딩 방법
US20230156185A1 (en) * 2021-11-15 2023-05-18 Tencent America LLC Generalized sample offset
KR102874350B1 (ko) 2023-07-04 2025-10-20 이동현 금융 경제 학습용 보드게임 세트

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1636407A (zh) * 2001-08-15 2005-07-06 皇家飞利浦电子股份有限公司 具有运动补偿的完全嵌入式fgs视频编码
CN101366283A (zh) * 2006-01-11 2009-02-11 高通股份有限公司 具有精细粒度空间可缩放性的视频编码
CN101558651A (zh) * 2006-10-16 2009-10-14 诺基亚公司 可伸缩视频编码中的可丢弃较低层自适应
CN101796841A (zh) * 2007-06-27 2010-08-04 汤姆逊许可公司 用位深度可分级性的增强层残差预测对视频数据进行编码和/或解码的方法和设备

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113124B (fi) * 1999-04-29 2004-02-27 Nokia Corp Tiedonsiirto
US7369610B2 (en) 2003-12-01 2008-05-06 Microsoft Corporation Enhancement layer switching for scalable video coding
KR20080066784A (ko) * 2005-10-11 2008-07-16 노키아 코포레이션 규모가변적 비디오 코딩을 위한 효율적 디코딩 화상 버퍼관리
KR101352978B1 (ko) 2006-01-16 2014-01-28 고려대학교 산학협력단 향상된 계층간 참조 영상 지정, 복호 방법 및 그 장치
US8170116B2 (en) * 2006-03-27 2012-05-01 Nokia Corporation Reference picture marking in scalable video encoding and decoding
US8396134B2 (en) * 2006-07-21 2013-03-12 Vidyo, Inc. System and method for scalable video coding using telescopic mode flags
US8565314B2 (en) * 2006-10-12 2013-10-22 Qualcomm Incorporated Variable length coding table selection based on block type statistics for refinement coefficient coding
US20080089411A1 (en) * 2006-10-16 2008-04-17 Nokia Corporation Multiple-hypothesis cross-layer prediction
EP2082576A4 (en) * 2006-10-23 2011-05-04 Vidyo Inc SYSTEM AND METHOD FOR VARIABLE-SCALE VIDEO ENCODING USING TELESCOPIC MODE INDICATORS
RU2387094C1 (ru) * 2006-11-09 2010-04-20 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ и устройство для кодирования/декодирования видеосигнала
CN101422046A (zh) * 2006-11-09 2009-04-29 Lg电子株式会社 用于解码/编码视频信号的方法及装置
CN101395921B (zh) * 2006-11-17 2012-08-22 Lg电子株式会社 用于解码/编码视频信号的方法及装置
US7742532B2 (en) * 2006-11-17 2010-06-22 Lg Electronics Inc. Method and apparatus for applying de-blocking filter to a video signal
US20080205529A1 (en) * 2007-01-12 2008-08-28 Nokia Corporation Use of fine granular scalability with hierarchical modulation
US8107571B2 (en) * 2007-03-20 2012-01-31 Microsoft Corporation Parameterized filters and signaling techniques
RU2463728C2 (ru) * 2007-10-15 2012-10-10 Квэлкомм Инкорпорейтед Усовершенствованное кодирование улучшающего слоя для масштабируемого кодирования видео
KR101506219B1 (ko) * 2008-03-25 2015-03-27 삼성전자주식회사 3차원 영상 컨텐츠 제공 방법, 재생 방법, 그 장치 및 그기록매체
FR2931610B1 (fr) * 2008-05-20 2010-12-17 Canon Kk Procede et un dispositif de transmission de donnees d'images
FR2939593B1 (fr) * 2008-12-09 2010-12-31 Canon Kk Procede et dispositif de codage video
WO2010126613A2 (en) 2009-05-01 2010-11-04 Thomson Licensing Inter-layer dependency information for 3dv
US9014276B2 (en) * 2009-12-04 2015-04-21 Broadcom Corporation Method and system for 3D video coding using SVC temporal and spatial scalabilities
US8780991B2 (en) * 2010-09-14 2014-07-15 Texas Instruments Incorporated Motion estimation in enhancement layers in video encoding
US20120269275A1 (en) 2010-10-20 2012-10-25 Nokia Corporation Method and device for video coding and decoding
US20120163472A1 (en) * 2010-12-22 2012-06-28 Qualcomm Incorporated Efficiently coding scanning order information for a video block in video coding
EP2659676A4 (en) 2010-12-27 2018-01-03 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement for processing of encoded video
JP5738434B2 (ja) * 2011-01-14 2015-06-24 ヴィディオ・インコーポレーテッド 改善されたｎａｌユニットヘッダ
EP2684293A4 (en) * 2011-03-10 2014-10-29 Vidyo Inc SET OF DEPENDENCY PARAMETERS FOR EVOLVING VIDEO CODING
US9451283B2 (en) * 2011-07-05 2016-09-20 Texas Instruments Incorporated Method, system and computer program product for selecting a motion vector in scalable video coding
US10237565B2 (en) * 2011-08-01 2019-03-19 Qualcomm Incorporated Coding parameter sets for various dimensions in video coding
EP2769549A1 (en) 2011-10-21 2014-08-27 Dolby Laboratories Licensing Corporation Hierarchical motion estimation for video compression and motion analysis
WO2013139212A1 (en) 2012-03-21 2013-09-26 Mediatek Singapore Pte. Ltd. Method and apparatus for intra mode derivation and coding in scalable video coding
CN104221384A (zh) 2012-04-13 2014-12-17 夏普株式会社 用于发送和接收长期参考画面指示符的设备
US9992493B2 (en) 2013-04-01 2018-06-05 Qualcomm Incorporated Inter-layer reference picture restriction for high level syntax-only scalable video coding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1636407A (zh) * 2001-08-15 2005-07-06 皇家飞利浦电子股份有限公司 具有运动补偿的完全嵌入式fgs视频编码
CN101366283A (zh) * 2006-01-11 2009-02-11 高通股份有限公司 具有精细粒度空间可缩放性的视频编码
CN101558651A (zh) * 2006-10-16 2009-10-14 诺基亚公司 可伸缩视频编码中的可丢弃较低层自适应
CN101796841A (zh) * 2007-06-27 2010-08-04 汤姆逊许可公司 用位深度可分级性的增强层残差预测对视频数据进行编码和/或解码的方法和设备

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KR20210087114A (ko) 2021-07-09
WO2014165402A1 (en) 2014-10-09
KR20150137098A (ko) 2015-12-08
US9998735B2 (en) 2018-06-12
KR20210087113A (ko) 2021-07-09
US20140294062A1 (en) 2014-10-02
KR20150137099A (ko) 2015-12-08
JP6297670B2 (ja) 2018-03-20
EP2982121A1 (en) 2016-02-10
US20140294063A1 (en) 2014-10-02
JP2016518760A (ja) 2016-06-23
CN105103560A (zh) 2015-11-25
WO2014165401A1 (en) 2014-10-09
EP2982122A1 (en) 2016-02-10
CN105052152A (zh) 2015-11-11
US9992493B2 (en) 2018-06-05
CN105103560B (zh) 2019-02-12
JP2016518759A (ja) 2016-06-23

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