BR112015018420A2 - métodos de codificação e decodificação de um bloco de imagem, dispositivos correspondentes e fluxo de dados - Google Patents

métodos de codificação e decodificação de um bloco de imagem, dispositivos correspondentes e fluxo de dados

Info

Publication number
BR112015018420A2
BR112015018420A2 BR112015018420A BR112015018420A BR112015018420A2 BR 112015018420 A2 BR112015018420 A2 BR 112015018420A2 BR 112015018420 A BR112015018420 A BR 112015018420A BR 112015018420 A BR112015018420 A BR 112015018420A BR 112015018420 A2 BR112015018420 A2 BR 112015018420A2
Authority
BR
Brazil
Prior art keywords
image
image block
encoding
reference image
decoding
Prior art date
Application number
BR112015018420A
Other languages
English (en)
Other versions
BR112015018420B1 (pt
Inventor
Hiron Franck
Lopez Patrick
Bordes Philippe
Salmon Philippe
Andrivon Pierre
Original Assignee
Thomson Licensing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Licensing filed Critical Thomson Licensing
Publication of BR112015018420A2 publication Critical patent/BR112015018420A2/pt
Publication of BR112015018420B1 publication Critical patent/BR112015018420B1/pt

Links

Classifications

    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H04N21/2355—Processing of additional data, e.g. scrambling of additional data or processing content descriptors involving reformatting operations of additional data, e.g. HTML pages
    • H04N21/2358—Processing of additional data, e.g. scrambling of additional data or processing content descriptors involving reformatting operations of additional data, e.g. HTML pages for generating different versions, e.g. for different recipient devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

resumo "métodos de codificação e decodificação de um bloco de imagem, dispositivos correspondentes e fluxo de dados" a presente invenção refere-se a um método para decodificar um bloco de imagem. o método de decodificação compreende: - decodificar (10) ao menos um fluxo s_diff em dados decodificados e em uma informação para identificar uma imagem de referência reconstruída em um armazenador de imagem de decodificador; - reconstruir (12) uma imagem de referência especial a partir de ao menos a imagem de referência reconstruída identificada e a partir dos dados decodificados; - substituir (14) no armazenador de imagem de decodificador uma imagem de referência reconstruída pela imagem de referência especial; e - reconstruir (16) o bloco de imagem a partir de ao menos a imagem de referência especial.
BR112015018420-0A 2013-02-22 2014-02-17 Métodos de codificação e decodificação de um bloco de imagem,decodificador e codificador BR112015018420B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13305201.9 2013-02-22
EP13305201.9A EP2804374A1 (en) 2013-02-22 2013-02-22 Coding and decoding methods of a picture block, corresponding devices and data stream
PCT/EP2014/052998 WO2014128074A1 (en) 2013-02-22 2014-02-17 Coding and decoding methods of a picture block, corresponding devices and data stream

Publications (2)

Publication Number Publication Date
BR112015018420A2 true BR112015018420A2 (pt) 2017-07-18
BR112015018420B1 BR112015018420B1 (pt) 2023-04-11

Family

ID=47877955

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015018420-0A BR112015018420B1 (pt) 2013-02-22 2014-02-17 Métodos de codificação e decodificação de um bloco de imagem,decodificador e codificador

Country Status (7)

Country Link
US (1) US10701373B2 (pt)
EP (2) EP2804374A1 (pt)
JP (1) JP6310947B2 (pt)
KR (1) KR102173508B1 (pt)
CN (1) CN105009593A (pt)
BR (1) BR112015018420B1 (pt)
WO (1) WO2014128074A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2804375A1 (en) 2013-02-22 2014-11-19 Thomson Licensing Coding and decoding methods of a picture block, corresponding devices and data stream
JP6365924B2 (ja) * 2013-05-09 2018-08-01 サン パテント トラスト 画像復号方法及び画像復号装置
CA2949823C (en) * 2014-05-21 2020-12-08 Arris Enterprises Llc Individual buffer management in transport of scalable video
MX364550B (es) * 2014-05-21 2019-04-30 Arris Entpr Llc Señalización y selección para la mejora de capas en vídeo escalable.
US9807419B2 (en) * 2014-06-25 2017-10-31 Qualcomm Incorporated Recovery point SEI message in multi-layer video codecs

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480541B1 (en) * 1996-11-27 2002-11-12 Realnetworks, Inc. Method and apparatus for providing scalable pre-compressed digital video with reduced quantization based artifacts
FR2782437B1 (fr) 1998-08-14 2000-10-13 Thomson Multimedia Sa Procede de commutation de flux mpeg
US6466624B1 (en) * 1998-10-28 2002-10-15 Pixonics, Llc Video decoder with bit stream based enhancements
US7017176B1 (en) 1999-06-10 2006-03-21 Cisco Technology, Inc. Data transmission over multiple upstream channels within a cable modem system
US20060093045A1 (en) * 1999-06-29 2006-05-04 Roger Anderson Method and apparatus for splicing
US6850568B1 (en) * 2000-01-12 2005-02-01 Sony Corporation Method and apparatus for decoding mpeg video signals
US6542541B1 (en) * 2000-01-12 2003-04-01 Sony Corporation Method and apparatus for decoding MPEG video signals using multiple data transfer units
US6574273B1 (en) * 2000-01-12 2003-06-03 Sony Corporation Method and apparatus for decoding MPEG video signals with continuous data transfer
US20020122491A1 (en) 2001-01-03 2002-09-05 Marta Karczewicz Video decoder architecture and method for using same
US6920175B2 (en) 2001-01-03 2005-07-19 Nokia Corporation Video coding architecture and methods for using same
KR100878812B1 (ko) * 2005-05-26 2009-01-14 엘지전자 주식회사 영상신호의 레이어간 예측에 대한 정보를 제공하고 그정보를 이용하는 방법
JP4574444B2 (ja) * 2005-05-27 2010-11-04 キヤノン株式会社 画像復号装置及び方法、画像符号化装置及び方法、コンピュータプログラム及び記憶媒体
WO2006129184A1 (en) * 2005-06-03 2006-12-07 Nokia Corporation Residual prediction mode in scalable video coding
US8335226B2 (en) 2005-08-03 2012-12-18 Broadcom Corporation Systems and methods to transmit information among a plurality of physical upstream channels
EP1952631A4 (en) 2005-09-07 2012-11-21 Vidyo Inc SYSTEM AND METHOD FOR SCALABLE AND DECELERATING VIDEO CONFERENCES WITH SCALABLE VIDEO CODING
US8213452B2 (en) 2006-07-18 2012-07-03 Broadcom Corporation Optimized scheduling method using ordered grants from a central controller
US8311102B2 (en) 2006-07-26 2012-11-13 Microsoft Corporation Bitstream switching in multiple bit-rate video streaming environments
EP1933563A1 (en) * 2006-12-14 2008-06-18 Thomson Licensing Method and apparatus for encoding and/or decoding bit depth scalable video data using adaptive enhancement layer residual prediction
US20080212673A1 (en) 2007-03-01 2008-09-04 Peisong Chen Systems and Methods for Adaptively Determining I Frames for Acquisition and Base and Enhancement Layer Balancing
CN101094406B (zh) 2007-07-23 2010-09-29 北京中星微电子有限公司 一种视频数据流的传输方法及装置
US8126054B2 (en) 2008-01-09 2012-02-28 Motorola Mobility, Inc. Method and apparatus for highly scalable intraframe video coding
WO2009136681A1 (en) 2008-05-08 2009-11-12 Lg Electronics Inc. Method for encoding and decoding image, and apparatus for displaying image
US20100118938A1 (en) 2008-11-12 2010-05-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoder and method for generating a stream of data
US8201207B2 (en) 2008-12-15 2012-06-12 Cisco Technology, Inc. Apparatus and methods for moving cable modems between upstream channels
US20120075436A1 (en) * 2010-09-24 2012-03-29 Qualcomm Incorporated Coding stereo video data
GB2500835B (en) * 2010-12-10 2014-02-12 Ibm High-dynamic range video tone mapping
EP2723079A4 (en) 2011-06-15 2015-03-04 Korea Electronics Telecomm MODULABLE VIDEO ENCODING AND DECODING METHOD AND DEVICE APPLYING THE SAME
WO2012173440A2 (ko) 2011-06-15 2012-12-20 한국전자통신연구원 스케일러블 비디오 코딩 및 디코딩 방법과 이를 이용한 장치
MX2014000159A (es) * 2011-07-02 2014-02-19 Samsung Electronics Co Ltd Metodo y aparato para la codificacion de video, y metodo y aparato para la decodificacion de video acompañada por inter prediccion utilizando imagen co-localizada.
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
EP2804375A1 (en) 2013-02-22 2014-11-19 Thomson Licensing Coding and decoding methods of a picture block, corresponding devices and data stream
WO2015085575A1 (en) * 2013-12-13 2015-06-18 Mediatek Singapore Pte. Ltd. Methods for background residual prediction

Also Published As

Publication number Publication date
WO2014128074A1 (en) 2014-08-28
US10701373B2 (en) 2020-06-30
JP6310947B2 (ja) 2018-04-11
EP2959688A1 (en) 2015-12-30
CN105009593A (zh) 2015-10-28
KR102173508B1 (ko) 2020-11-03
JP2016511591A (ja) 2016-04-14
EP2804374A1 (en) 2014-11-19
EP2959688B1 (en) 2022-05-18
US20160014419A1 (en) 2016-01-14
KR20150120988A (ko) 2015-10-28
BR112015018420B1 (pt) 2023-04-11

Similar Documents

Publication Publication Date Title
BR112018073380A2 (pt) confusão de múltiplos filtros em filtragem de loop adaptativa em codificação de vídeo
BR112013017067A2 (pt) dispositivo de codificação de vídeo para codificar dados de vídeo, método de codificação de vídeo, dispositivo de decodificação de vídeo, sistema de decodificação de vídeo e programa de computador
WO2015035449A8 (en) Method, apparatus and system for encoding and decoding video data
EA201591975A1 (ru) Гибридное обратно совместимое кодирование и декодирование сигналов
BR112014013373A8 (pt) codificação de bits menos significativos dos valores de contagem de ordem de imagem identificando imagens de referência de longo termo
MY177309A (en) Information processing apparatus and method
BR112017003887A2 (pt) ?codificador, decodificador e método para codificar e decodificar conteúdo de áudio com o uso de parâmetros para aprimorar uma ocultação?.
WO2011090790A8 (en) Methods and apparatus for sampling -based super resolution video encoding and decoding
BR112015031180A2 (pt) aparelho e método para desvanecimento de sinal aperfeiçoado para sistemas de codificação de áudio comutação durante ocultação de erros
MX2014000692A (es) Decodificacion de señal graduada y recontruccion de señal.
BR112015018420A2 (pt) métodos de codificação e decodificação de um bloco de imagem, dispositivos correspondentes e fluxo de dados
MX339635B (es) Codificacion y decodificacion basadas en la mezcla de secuencias de muestras a traves del tiempo.
BR112012020733A2 (pt) sinalização de tipo de bloco em codificação de vídeo.
MY171067A (en) Coding sei nal units for video coding
BR112014026659A8 (pt) aparelho e método para decodificar um fluxo de mídia e aparelho para enviar um fluxo de mídia codificado
MX2013014857A (es) Señalizacion de imagenes de referencia.
MX2013013029A (es) Metodo de decodificacion de imagenes, metodo de codificacion de imagenes, dispositivo de decodificacion de imagenes, dispositivo de codificacion de imagenes y dispositivo de codificacion/decodifi cacion de imagenes.
BR112012017145A2 (pt) codificação de vídeo usando detecção compressiva.
BR112015029129A2 (pt) codificação eficiente de cenas de áudio contendo objetos de áudio
MX353742B (es) Método y aparato de codificación y decodificación de video de base de unidad de datos jerárquica que comprende la predicción del parámetro de cuantificación.
BR112013020878A2 (pt) dispositivos e métodos de codificação e decodificação de imagem
BR112015029132A2 (pt) codificação de cenas de áudio
BR112015016678A2 (pt) síntese de visualização em vídeo 3d
BR112015018064A2 (pt) método de predição de sinal de faixa de alta frequência, dispositivo de codificação e dispositivo de decodificação
BR112015020060A2 (pt) métodos de codificação e decodificação de um bloco de imagens, dispositivos correspondentes e fluxo de dados

Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B25G Requested change of headquarter approved

Owner name: THOMSON LICENSING (FR)

B25A Requested transfer of rights approved

Owner name: INTERDIGITAL VC HOLDINGS, INC. (US)

B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/02/2014, OBSERVADAS AS CONDICOES LEGAIS