BR0305554A - Aparelho de codificação de imagem em movimento e aparelho de decodificação de imagem em movimento - Google Patents

Aparelho de codificação de imagem em movimento e aparelho de decodificação de imagem em movimento

Info

Publication number
BR0305554A
BR0305554A BR0305554-0A BRPI0305554A BR0305554A BR 0305554 A BR0305554 A BR 0305554A BR PI0305554 A BRPI0305554 A BR PI0305554A BR 0305554 A BR0305554 A BR 0305554A
Authority
BR
Brazil
Prior art keywords
unit
moving image
field
memory
operable
Prior art date
Application number
BR0305554-0A
Other languages
English (en)
Inventor
Martin Schlockermann
Bernhard Schuur
Shinya Kadono
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BR0305554A publication Critical patent/BR0305554A/pt
Publication of BRPI0305554B1 publication Critical patent/BRPI0305554B1/pt
Publication of BRPI0305554B8 publication Critical patent/BRPI0305554B8/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
    • H04N19/42—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
    • H04N19/10—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
    • H04N19/127—Prioritisation of hardware or computational resources
    • 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
    • H04N19/172—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
    • H04N19/42—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
    • H04N19/42—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
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
    • 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
    • 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
    • H04N19/513—Processing of motion vectors
    • 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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • 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
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • 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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

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

Abstract

"APARELHO DE CODIFICAçãO DE IMAGEM EM MOVIMENTO E APARELHO DE DECODIFICAçãO DE IMAGEM EM MOVIMENTO". A presente invenção refere-se a um codificador de vídeo (70) para a codificação de imagens em movimento compreendendo um buffer (16c) com uma pluralidade de áreas de memória capaz de armazenar quadros compostos por campos de topo e campos de fundo, uma unidade de estimativa de movimento (19) operável para codificar, campo a campo, imagens introduzidas realizando uma estimativa de movimento e uma compensação de movimento por uma referência, campo a campo, aos dados de imagem armazenados em uma área de memória, uma unidade de compensação de movimento (16d), um subtraidor (11), uma unidade de transformação (13) e uma unidade de quantificação (14), uma unidade de gerenciamento de memória (71) operável para gerenciar, quadro a quadro, uma pluralidade de áreas de memória, uma unidade de quantificação inversa (16a) e uma unidade de transformação de cosseno discreta inversa (16b) operável para decodificar dados de imagem em campos codificados e armazenar os dados de imagem no campo decodificado em qualquer uma da pluralidade de áreas de memória sob o gerenciamento pela unidade de gerenciamento de memória (71).
BRPI0305554A 2002-07-15 2003-07-15 “dispositivo de gerenciamento de memória em um aparelho para a codificação ou a decodificação de imagens em movimento e método de gerenciamento de memória empregado por um aparelho para a codificação ou a decodificação de imagens em movimento” BRPI0305554B8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02015606A EP1383339A1 (en) 2002-07-15 2002-07-15 Memory management method for video sequence motion estimation and compensation
EP02015606.3 2002-07-15
PCT/JP2003/008954 WO2004008776A1 (ja) 2002-07-15 2003-07-15 動画像符号化装置及び動画像復号化装置

Publications (3)

Publication Number Publication Date
BR0305554A true BR0305554A (pt) 2004-09-28
BRPI0305554B1 BRPI0305554B1 (pt) 2018-04-03
BRPI0305554B8 BRPI0305554B8 (pt) 2021-06-29

Family

ID=29762616

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0305554A BRPI0305554B8 (pt) 2002-07-15 2003-07-15 “dispositivo de gerenciamento de memória em um aparelho para a codificação ou a decodificação de imagens em movimento e método de gerenciamento de memória empregado por um aparelho para a codificação ou a decodificação de imagens em movimento”

Country Status (10)

Country Link
US (14) US7760803B2 (pt)
EP (4) EP1383339A1 (pt)
JP (7) JP4440572B2 (pt)
CN (1) CN1307839C (pt)
AU (1) AU2003281135B2 (pt)
BR (1) BRPI0305554B8 (pt)
CA (1) CA2460473C (pt)
ES (1) ES2536543T3 (pt)
MX (1) MXPA04002302A (pt)
WO (1) WO2004008776A1 (pt)

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Also Published As

Publication number Publication date
US20080062187A1 (en) 2008-03-13
US8139637B2 (en) 2012-03-20
US20160198170A1 (en) 2016-07-07
WO2004008776A1 (ja) 2004-01-22
JP5261592B2 (ja) 2013-08-14
US9420301B2 (en) 2016-08-16
BRPI0305554B1 (pt) 2018-04-03
US8989264B2 (en) 2015-03-24
US20100215093A1 (en) 2010-08-26
JP2009296605A (ja) 2009-12-17
EP1383339A1 (en) 2004-01-21
JP4440572B2 (ja) 2010-03-24
EP1443772A1 (en) 2004-08-04
US20180192065A1 (en) 2018-07-05
JP2014143725A (ja) 2014-08-07
CN1307839C (zh) 2007-03-28
BRPI0305554B8 (pt) 2021-06-29
EP1443772B1 (en) 2015-03-04
EP2894858A1 (en) 2015-07-15
JP5205343B2 (ja) 2013-06-05
JP2014143727A (ja) 2014-08-07
JP2013110770A (ja) 2013-06-06
ES2536543T3 (es) 2015-05-26
US20150172700A1 (en) 2015-06-18
US20150172684A1 (en) 2015-06-18
JP2004040816A (ja) 2004-02-05
US20150172685A1 (en) 2015-06-18
CN1557098A (zh) 2004-12-22
US9001891B2 (en) 2015-04-07
US7760803B2 (en) 2010-07-20
JP5530541B2 (ja) 2014-06-25
JP5658391B2 (ja) 2015-01-21
US20120144143A1 (en) 2012-06-07
US9906806B2 (en) 2018-02-27
JP5687787B2 (ja) 2015-03-18
US20150172725A1 (en) 2015-06-18
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