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BR9911289A - Codificador de vìdeo e método de codificação controle de memória intermediária - Google Patents

Codificador de vìdeo e método de codificação controle de memória intermediária

Info

Publication number
BR9911289A
BR9911289A BR9911289-2A BR9911289A BR9911289A BR 9911289 A BR9911289 A BR 9911289A BR 9911289 A BR9911289 A BR 9911289A BR 9911289 A BR9911289 A BR 9911289A
Authority
BR
Brazil
Prior art keywords
data
decoder
encoder
buffer
overflow
Prior art date
Application number
BR9911289-2A
Other languages
English (en)
Other versions
BRPI9911289B1 (pt
Inventor
Xuemin Chen
Robert O Eifrig
Original Assignee
Gen Instrument Corp
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 Gen Instrument Corp filed Critical Gen Instrument Corp
Publication of BR9911289A publication Critical patent/BR9911289A/pt
Publication of BRPI9911289B1 publication Critical patent/BRPI9911289B1/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
    • H04N19/134—Methods 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to coding
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/134—Methods 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/134—Methods 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
    • H04N19/146—Data rate or code amount at the encoder output

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

"CODIFICADOR DE VìDEO E MéTODO DE CODIFICAçãO COM CONTROLE DE MEMóRIA INTERMEDIáRIA". Uma técnica é fornecida para possibilitar que dados, tal como vídeo, sejam difundidos usando um cenário de fluxo de dados de acréscimo sem causar o estouro ou estouro negativo de uma memória intermediária com taxa de dados (32) para os dados acrescentados em um decodificador (30). Em um codificador (20), os dados são codificados para comunicação para o decodificador (30) para produzir um fluxo de bits de saída. A memória intermediária com taxa de dados (32) do decodificador é simulada no codificador (22). A simulação é usada para controlar o fluxo de bits de saída para impedir o estouro ou estouro negativo da memória intermediária do decodificador (32). Por exemplo, uma memória intermediária do codificador complementar (22), que opera em uma maneira oposta à memória intermediária do decodificador (32), pode ser monitorada e invertida para produzir a simulação. Várias técnicas diferentes são descritas para controlar a quantidade de dados produzida no codificador para manter os dados dentro dos limites da memória intermediária do decodificador (32).
BRPI9911289-2A 1998-06-19 1999-05-28 Aparelho codificador, método de codificação, aparelho decodificador e método para produzir um fluxo de bits BRPI9911289B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9002398P 1998-06-19 1998-06-19
US09/219,913 US6289129B1 (en) 1998-06-19 1998-12-23 Video rate buffer for use with push dataflow
PCT/US1999/011928 WO1999066734A1 (en) 1998-06-19 1999-05-28 Video encoder and encoding method with buffer control

Publications (2)

Publication Number Publication Date
BR9911289A true BR9911289A (pt) 2001-10-23
BRPI9911289B1 BRPI9911289B1 (pt) 2015-06-16

Family

ID=26781410

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9911289-2A BRPI9911289B1 (pt) 1998-06-19 1999-05-28 Aparelho codificador, método de codificação, aparelho decodificador e método para produzir um fluxo de bits

Country Status (13)

Country Link
US (1) US6289129B1 (pt)
EP (1) EP1088454A1 (pt)
JP (1) JP2002518951A (pt)
KR (1) KR20010053002A (pt)
CN (1) CN1315116A (pt)
AU (1) AU756355B2 (pt)
BR (1) BRPI9911289B1 (pt)
CA (1) CA2334785A1 (pt)
IL (1) IL140208A0 (pt)
NO (1) NO20006469L (pt)
NZ (1) NZ509326A (pt)
RU (1) RU2216122C2 (pt)
WO (1) WO1999066734A1 (pt)

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US6529552B1 (en) * 1999-02-16 2003-03-04 Packetvideo Corporation Method and a device for transmission of a variable bit-rate compressed video bitstream over constant and variable capacity networks
EP1146745B1 (en) * 2000-03-08 2019-09-04 Mitsubishi Denki Kabushiki Kaisha Coding device and coding method
JP2002165148A (ja) * 2000-11-29 2002-06-07 Sony Corp データ処理装置および方法、並びに記録媒体
US6694060B2 (en) * 2000-12-21 2004-02-17 General Instrument Corporation Frame bit-size allocation for seamlessly spliced, variable-encoding-rate, compressed digital video signals
US6922441B2 (en) * 2001-05-11 2005-07-26 International Business Machines Corporation Method for performing integer divides without propagation of truncation error
US20030112366A1 (en) * 2001-11-21 2003-06-19 General Instrument Corporation Apparatus and methods for improving video quality delivered to a display device
EP2403265A3 (en) * 2002-04-26 2012-02-01 Sony Corporation Encoding device and method, decoding device and method, editing device and method, recoding medium, and program
JP3714302B2 (ja) * 2002-07-08 2005-11-09 ソニー株式会社 画像データ処理装置及び方法
EP1540962B1 (en) * 2002-09-20 2016-05-11 NTT DoCoMo, Inc. Method and apparatus for arithmetic coding and decoding
MY134659A (en) * 2002-11-06 2007-12-31 Nokia Corp Picture buffering for prediction references and display
US7042943B2 (en) 2002-11-08 2006-05-09 Apple Computer, Inc. Method and apparatus for control of rate-distortion tradeoff by mode selection in video encoders
RU2249246C2 (ru) * 2002-12-17 2005-03-27 Научно-исследовательский институт системных исследований Российской Академии Наук Способ управления буфером обратного магазинного типа видеосистемы
US7194035B2 (en) 2003-01-08 2007-03-20 Apple Computer, Inc. Method and apparatus for improved coding mode selection
AU2004214313B2 (en) * 2003-02-18 2010-05-20 Nokia Technologies Oy Picture coding method
CN100568964C (zh) 2003-02-18 2009-12-09 诺基亚有限公司 图像解码方法
US8194751B2 (en) * 2003-02-19 2012-06-05 Panasonic Corporation Moving picture coding method and moving picture decoding method
US7266147B2 (en) * 2003-03-31 2007-09-04 Sharp Laboratories Of America, Inc. Hypothetical reference decoder
US20050201471A1 (en) * 2004-02-13 2005-09-15 Nokia Corporation Picture decoding method
US7296205B2 (en) * 2004-02-18 2007-11-13 Nokia Corporation Data repair
KR100988402B1 (ko) * 2004-06-27 2010-10-18 애플 인크. 멀티-패스 비디오 인코딩 방법
US8406293B2 (en) 2004-06-27 2013-03-26 Apple Inc. Multi-pass video encoding based on different quantization parameters
US8005139B2 (en) 2004-06-27 2011-08-23 Apple Inc. Encoding with visual masking
US9124907B2 (en) * 2004-10-04 2015-09-01 Nokia Technologies Oy Picture buffering method
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US7715316B2 (en) * 2007-05-11 2010-05-11 Verizon Services Organization Inc. Method and apparatus for improving performance in a network using a virtual queue and a switched poisson process traffic model
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KR100951008B1 (ko) * 2007-12-17 2010-04-02 한국전자통신연구원 인터레이스 부호화에서의 실시간 비트율 제어 방법 및시스템
US8045836B2 (en) * 2008-01-11 2011-10-25 Texas Instruments Incorporated System and method for recording high frame rate video, replaying slow-motion and replaying normal speed with audio-video synchronization
US8384739B2 (en) * 2008-09-30 2013-02-26 Konica Minolta Laboratory U.S.A., Inc. Systems and methods for optimization of pixel-processing algorithms
CN102630006B (zh) * 2012-03-20 2017-03-08 中广传播集团有限公司 一种传输视频流的装置和方法
CN102970579B (zh) * 2012-11-28 2015-06-17 四川长虹电器股份有限公司 一种视频缓冲区监控的方法及装置
WO2015011757A1 (ja) * 2013-07-22 2015-01-29 富士通株式会社 情報処理装置、方法、及びプログラム

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Also Published As

Publication number Publication date
CN1315116A (zh) 2001-09-26
US6289129B1 (en) 2001-09-11
BRPI9911289B1 (pt) 2015-06-16
RU2216122C2 (ru) 2003-11-10
KR20010053002A (ko) 2001-06-25
AU4320199A (en) 2000-01-05
JP2002518951A (ja) 2002-06-25
WO1999066734A1 (en) 1999-12-23
CA2334785A1 (en) 1999-12-23
NO20006469L (no) 2001-02-16
IL140208A0 (en) 2002-02-10
EP1088454A1 (en) 2001-04-04
NO20006469D0 (no) 2000-12-18
NZ509326A (en) 2002-09-27
AU756355B2 (en) 2003-01-09

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B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: H04N 7/50

Ipc: H04N 19/61 (2014.01)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
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