BRPI0506846A - codificador com controle de taxa adaptativo - Google Patents

codificador com controle de taxa adaptativo

Info

Publication number
BRPI0506846A
BRPI0506846A BRPI0506846-0A BRPI0506846A BRPI0506846A BR PI0506846 A BRPI0506846 A BR PI0506846A BR PI0506846 A BRPI0506846 A BR PI0506846A BR PI0506846 A BRPI0506846 A BR PI0506846A
Authority
BR
Brazil
Prior art keywords
parameter
image frame
encoder
rate control
adaptive rate
Prior art date
Application number
BRPI0506846-0A
Other languages
English (en)
Inventor
Peng Yin
Jill Macdonald Boyce
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34837408&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0506846(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0506846A publication Critical patent/BRPI0506846A/pt
Publication of BRPI0506846B1 publication Critical patent/BRPI0506846B1/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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/19—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding using optimisation based on Lagrange multipliers
    • 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
    • H04N19/134—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
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at 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
    • H04N19/134—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
    • H04N19/60—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
    • H04N19/102—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
    • H04N19/169—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
    • H04N19/10—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

Landscapes

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

Abstract

CODIFICADOR COM CONTROLE DE TAXA ADPTATIVO Um codificador de vídeo (100) é apresentado, o codificador para a codificação de quadros de imagens divisíveis em macro-blocos. O codificador de v¢ideo (100) inclui um meio (130) para a geração de uma estimativa de parâmetro QP para os macro-blocos de uma quadro de imagem. O codificador de vídeo inclui ainda um meio (130) para a seleção de um parâmetro de quantização (QP) de nível de quadro para o quadro de imagens, usando uma dentre as estimativas de parâmetro QP mínimo, médio, e de modo para os macro-blocos. Um método para codificar vídeo é apresentado para a codificação de quadros de imagens divisíveis em macro-blocos. O método gera (225) uma estimativa de parâmetro de quantização (QP) para os macro-blocos de um quadro de imagens e seleciona (230) um parâmetro QP de nível de quadros para o quadro de imagens, usando uma dentre as estimativas de parâmetro QP mínimo, médio, e de modo para os macro-blocos.
BRPI0506846A 2004-01-30 2005-01-11 codificador de vídeo e método para codificar quadros de imagens divisíveis em macro-blocos BRPI0506846B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54063404P 2004-01-30 2004-01-30
PCT/US2005/000755 WO2005076632A2 (en) 2004-01-30 2005-01-11 Encoder with adaptive rate control for h.264

Publications (2)

Publication Number Publication Date
BRPI0506846A true BRPI0506846A (pt) 2007-06-12
BRPI0506846B1 BRPI0506846B1 (pt) 2018-12-11

Family

ID=34837408

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0506846A BRPI0506846B1 (pt) 2004-01-30 2005-01-11 codificador de vídeo e método para codificar quadros de imagens divisíveis em macro-blocos

Country Status (7)

Country Link
US (1) US9071840B2 (pt)
EP (1) EP1745653B1 (pt)
JP (1) JP2007522724A (pt)
KR (1) KR101169108B1 (pt)
CN (1) CN1910934B (pt)
BR (1) BRPI0506846B1 (pt)
WO (1) WO2005076632A2 (pt)

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Also Published As

Publication number Publication date
EP1745653A2 (en) 2007-01-24
EP1745653B1 (en) 2017-10-18
US9071840B2 (en) 2015-06-30
KR20070001112A (ko) 2007-01-03
CN1910934B (zh) 2011-07-06
BRPI0506846B1 (pt) 2018-12-11
JP2007522724A (ja) 2007-08-09
CN1910934A (zh) 2007-02-07
US20070153892A1 (en) 2007-07-05
WO2005076632A3 (en) 2005-12-29
KR101169108B1 (ko) 2012-07-26
WO2005076632A2 (en) 2005-08-18

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