BR9910270A - Método e aparelho para aumentar a utilização de recurso de memória em um decodificador de fluxo de informação - Google Patents

Método e aparelho para aumentar a utilização de recurso de memória em um decodificador de fluxo de informação

Info

Publication number
BR9910270A
BR9910270A BR9910270-6A BR9910270A BR9910270A BR 9910270 A BR9910270 A BR 9910270A BR 9910270 A BR9910270 A BR 9910270A BR 9910270 A BR9910270 A BR 9910270A
Authority
BR
Brazil
Prior art keywords
information flow
memory resources
increasing
flow decoder
haar wavelet
Prior art date
Application number
BR9910270-6A
Other languages
English (en)
Inventor
Shipeng Li
Original Assignee
Sarnoff Corp
Motorola Inc
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 Sarnoff Corp, Motorola Inc filed Critical Sarnoff Corp
Publication of BR9910270A publication Critical patent/BR9910270A/pt

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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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/16—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter for a given display mode, e.g. for interlaced or progressive display mode
    • 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
    • H04N19/10—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
    • H04N19/186—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 a colour or a chrominance component
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
    • H04N19/428—Recompression, e.g. by spatial or temporal decimation
    • 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
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • 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
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/64—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission
    • H04N19/645—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission by grouping of coefficients into blocks after the transform
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • 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
    • 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
    • H04N19/134—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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Patente de Invenção: <B>"MéTODO E APARELHO PARA AUMENTAR A UTILIZAçãO DE RECURSO DE MEMóRIA EM UM DECODIFICADOR DE FLUXO DE INFORMAçãO"<D>. Um método e aparelho para compactar um ou mais blocos de pixels utilizando uma transformação wavelet Haar e uma quantização preferencial e uma rotina de ajuste de escala para produzir uma ou mais respectivas palavras compreendendo preferencialmente coeficientes wavelet Haar quantizados e o indício de ajuste de escala associado. Dentro do contexto de um sistema de processamento tipo MPEG, os requerimentos de recurso de memória, tal como para o armazenamento de quadro, são reduzidos por um fator de dois. Em outra modalidade, cada bloco de pixels é sujeito ao processamento de transformação de coseno separada (DCT) e à truncagem do coeficiente DCT de alta ordem, por meio disso efetuando uma taxa de compactação aperfeiçoada da informação do pixel.
BR9910270-6A 1998-05-07 1999-05-07 Método e aparelho para aumentar a utilização de recurso de memória em um decodificador de fluxo de informação BR9910270A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8463298P 1998-05-07 1998-05-07
US12745098A 1998-07-31 1998-07-31
PCT/US1999/010025 WO1999057908A1 (en) 1998-05-07 1999-05-07 Method and apparatus for increasing memory resource utilization in an information stream decoder

Publications (1)

Publication Number Publication Date
BR9910270A true BR9910270A (pt) 2001-10-02

Family

ID=26771220

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9910270-6A BR9910270A (pt) 1998-05-07 1999-05-07 Método e aparelho para aumentar a utilização de recurso de memória em um decodificador de fluxo de informação

Country Status (7)

Country Link
EP (1) EP1078529B1 (pt)
JP (1) JP2002514867A (pt)
KR (1) KR100651316B1 (pt)
CN (1) CN1369175A (pt)
BR (1) BR9910270A (pt)
TW (1) TW420935B (pt)
WO (1) WO1999057908A1 (pt)

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KR100359821B1 (ko) 2000-01-20 2002-11-07 엘지전자 주식회사 움직임 보상 적응형 영상 압축과 복원방법 및 그 장치와디코더
GB0019121D0 (en) * 2000-08-03 2000-09-27 Wave Limited M Signal compression and decompression
CN1320809C (zh) * 2001-08-29 2007-06-06 佳能株式会社 图像处理装置与方法
US6882685B2 (en) * 2001-09-18 2005-04-19 Microsoft Corporation Block transform and quantization for image and video coding
US7317840B2 (en) 2002-02-26 2008-01-08 Decegama Angel Methods for real-time software video/audio compression, transmission, decompression and display
US7630569B2 (en) 2002-02-26 2009-12-08 Decegama Angel Real-time software video/audio transmission and display with content protection against camcorder piracy
JP2003274185A (ja) 2002-03-19 2003-09-26 Sanyo Electric Co Ltd 画像処理方法とその方法を利用可能な画像符号化装置
US20040010329A1 (en) * 2002-07-09 2004-01-15 Silicon Integrated Systems Corp. Method for reducing buffer requirements in a digital audio decoder
US7940843B1 (en) * 2002-12-16 2011-05-10 Apple Inc. Method of implementing improved rate control for a multimedia compression and encoding system
WO2007148619A1 (ja) * 2006-06-21 2007-12-27 Nec Corporation 動画像復号装置、復号画像記録装置、それらの方法及びプログラム
KR101365444B1 (ko) * 2007-11-19 2014-02-21 삼성전자주식회사 영상의 해상도의 조정을 통하여 동영상을 효율적으로부호화/복호화하는 방법 및 장치
US8031782B2 (en) 2008-08-29 2011-10-04 ADC2 Technologies LLC Systems and methods for compression, transmission and decompression of video codecs
EP2355512A1 (en) * 2010-02-05 2011-08-10 Siemens Aktiengesellschaft A method and an apparatus for difference measurement of an image
GB2484736B (en) * 2010-10-22 2014-11-05 Displaylink Uk Ltd Image generation
EP3621206B1 (en) * 2011-10-24 2024-06-05 Velos Media International Limited Significant map decoding using partition selection
US9165538B2 (en) 2013-03-13 2015-10-20 Displaylink (Uk) Limited Image generation
GB2585880B (en) 2019-07-19 2023-09-20 Displaylink Uk Ltd Processing Display Data
CN111223438B (zh) * 2020-03-11 2022-11-04 Tcl华星光电技术有限公司 像素补偿表的压缩方法及装置

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US5434567A (en) * 1994-09-09 1995-07-18 Kabushiki Kaisha Toshiba Encoding image signals by further transforming transformed DC signals
US5701158A (en) 1996-03-04 1997-12-23 Mitsubishi Denki Kabushiki Kaisha Digital image decoding apparatus
US5706220A (en) 1996-05-14 1998-01-06 Lsi Logic Corporation System and method for implementing the fast wavelet transform

Also Published As

Publication number Publication date
EP1078529B1 (en) 2013-07-31
KR20010043394A (ko) 2001-05-25
JP2002514867A (ja) 2002-05-21
CN1369175A (zh) 2002-09-11
EP1078529A1 (en) 2001-02-28
TW420935B (en) 2001-02-01
KR100651316B1 (ko) 2006-11-28
WO1999057908A1 (en) 1999-11-11

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired
B15K Others concerning applications: alteration of classification

Ipc: H04N 19/59 (2014.01), H04N 19/132 (2014.0