BRPI0412340A - codificador de vìdeo com redução de ruìdo de baixa complexidade - Google Patents

codificador de vìdeo com redução de ruìdo de baixa complexidade

Info

Publication number
BRPI0412340A
BRPI0412340A BRPI0412340-9A BRPI0412340A BRPI0412340A BR PI0412340 A BRPI0412340 A BR PI0412340A BR PI0412340 A BRPI0412340 A BR PI0412340A BR PI0412340 A BRPI0412340 A BR PI0412340A
Authority
BR
Brazil
Prior art keywords
noise reduction
motion estimation
low complexity
video encoder
macroblock
Prior art date
Application number
BRPI0412340-9A
Other languages
English (en)
Inventor
Jill Macdonald Boyce
Joan Llach
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 BRPI0412340A publication Critical patent/BRPI0412340A/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
    • H04N19/102—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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/10—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

"CODIFICADOR DE VìDEO COM REDUçãO DE RUìDO DE BAIXA COMPLEXIDADE". Redução de ruído é obtida durante codificação de vídeo com baixa complexidade fazendo-se uso dos conjuntos de decisões de estimativa de movimento para redução de ruído. Estimativa de movimento é feita N vezes (onde N é um número inteiro) em cada macrobloco para produzir N conjuntos de dados de estimativa de movimento, cada conjunto incluindo um índice de imagem de referência e um vetor de movimento. Tipicamente, embora não necessariamente, cada conjunto de dados de estimativa de movimento faz uso de uma imagem de referência diferente. Para cada macrobloco, os N conjuntos de dados de estimativa de movimento são usados para criar um macrobloco de baixo ruído, que é então codificado.
BRPI0412340-9A 2003-07-09 2004-05-28 codificador de vìdeo com redução de ruìdo de baixa complexidade BRPI0412340A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48589103P 2003-07-09 2003-07-09
PCT/US2004/017176 WO2005011283A1 (en) 2003-07-09 2004-05-28 Video encoder with low complexity noise reduction

Publications (1)

Publication Number Publication Date
BRPI0412340A true BRPI0412340A (pt) 2006-09-05

Family

ID=34102668

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0412340-9A BRPI0412340A (pt) 2003-07-09 2004-05-28 codificador de vìdeo com redução de ruìdo de baixa complexidade

Country Status (9)

Country Link
US (1) US20060193526A1 (pt)
EP (1) EP1642465A1 (pt)
JP (1) JP2007527642A (pt)
KR (1) KR20060034277A (pt)
CN (1) CN100493191C (pt)
BR (1) BRPI0412340A (pt)
MX (1) MXPA06000323A (pt)
MY (1) MY146076A (pt)
WO (1) WO2005011283A1 (pt)

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US8094711B2 (en) * 2003-09-17 2012-01-10 Thomson Licensing Adaptive reference picture generation
US20100272182A1 (en) * 2004-06-23 2010-10-28 Quanta International Limited Image flow knowledge assisted latency-free in-loop temporal filter
US20050286638A1 (en) * 2004-06-23 2005-12-29 Qpixel Technology International, Inc. Image flow knowledge assisted latency-free in-loop temporal filter
BRPI0714119B1 (pt) * 2006-07-11 2020-09-15 Interdigital Vc Holdings, Inc Métodos e aparelho que utilizam imagens de referência virtual
GB2443668A (en) * 2006-11-10 2008-05-14 Tandberg Television Asa Motion-compensated temporal recursive filter
WO2008073416A1 (en) * 2006-12-11 2008-06-19 Cinnafilm, Inc. Real-time film effects processing for digital video
US20100202532A1 (en) * 2007-03-09 2010-08-12 Dolby Laboratories Licensing Corporation Multi-frame motion extrapolation from a compressed video source
KR101366242B1 (ko) * 2007-03-29 2014-02-20 삼성전자주식회사 움직임 모델 파라메터의 부호화, 복호화 방법 및 움직임모델 파라메터를 이용한 영상의 부호화, 복호화 방법 및장치
US8165209B2 (en) * 2007-09-24 2012-04-24 General Instrument Corporation Method and apparatus for providing a fast motion estimation process
CN100568983C (zh) * 2007-10-29 2009-12-09 威盛电子股份有限公司 影像信号像素点色彩值调整方法
US20100026897A1 (en) * 2008-07-30 2010-02-04 Cinnafilm, Inc. Method, Apparatus, and Computer Software for Modifying Moving Images Via Motion Compensation Vectors, Degrain/Denoise, and Superresolution
US10034018B2 (en) * 2011-09-23 2018-07-24 Velos Media, Llc Decoded picture buffer management
TWI479897B (zh) * 2011-12-27 2015-04-01 Altek Corp 具備三維去雜訊化功能之視訊編碼/解碼裝置及其控制方法
CN103188484A (zh) * 2011-12-27 2013-07-03 华晶科技股份有限公司 具备三维去杂讯化功能的视讯编码/解码装置及其视讯编码方法
TWI580261B (zh) * 2012-01-18 2017-04-21 Jvc Kenwood Corp Dynamic image decoding device, dynamic image decoding method, and dynamic image decoding program

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361105A (en) * 1993-03-05 1994-11-01 Matsushita Electric Corporation Of America Noise reduction system using multi-frame motion estimation, outlier rejection and trajectory correction
US5442407A (en) * 1994-03-22 1995-08-15 Matsushita Electric Corporation Of America Video signal noise reduction system using time-varying filter coefficients
US5706054A (en) * 1995-12-01 1998-01-06 Intel Corporation Method and apparatus for adjusting video data to limit the effects of automatic focusing control on motion estimation video coders
WO1997030545A1 (en) * 1996-02-19 1997-08-21 Philips Electronics N.V. Method and arrangement for encoding a video signal
EP1126729A1 (en) * 2000-02-18 2001-08-22 STMicroelectronics S.r.l. A process for estimating the noise level in sequences of images and a device therefor
US6738099B2 (en) * 2001-02-16 2004-05-18 Tektronix, Inc. Robust camera motion estimation for video sequences
US7110455B2 (en) * 2001-08-14 2006-09-19 General Instrument Corporation Noise reduction pre-processor for digital video using previously generated motion vectors and adaptive spatial filtering
FR2828977B1 (fr) * 2001-08-21 2003-12-05 Nextream Sa Dispositif et procede d'estimation du niveau de bruit, systeme de reduction de bruit et systeme de codage comprenant un tel dispositif
KR20040062257A (ko) * 2003-01-02 2004-07-07 삼성전자주식회사 움직임 보상에 기반한 개선된 노이즈 예측 방법 및 그장치와 이를 사용한 동영상 부호화 방법 및 그 장치
US7295616B2 (en) * 2003-11-17 2007-11-13 Eastman Kodak Company Method and system for video filtering with joint motion and noise estimation

Also Published As

Publication number Publication date
MXPA06000323A (es) 2006-05-31
CN100493191C (zh) 2009-05-27
WO2005011283A1 (en) 2005-02-03
JP2007527642A (ja) 2007-09-27
MY146076A (en) 2012-06-29
KR20060034277A (ko) 2006-04-21
US20060193526A1 (en) 2006-08-31
CN1826814A (zh) 2006-08-30
EP1642465A1 (en) 2006-04-05

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 6A, 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012.

B15K Others concerning applications: alteration of classification

Ipc: H04N 19/117 (2014.01), H04N 19/139 (2014.01), H04N