BR9713711A - Aparelho de compressão de blocos de pixels em um sistema de processamento de imagem - Google Patents

Aparelho de compressão de blocos de pixels em um sistema de processamento de imagem

Info

Publication number
BR9713711A
BR9713711A BR9713711-1A BR9713711A BR9713711A BR 9713711 A BR9713711 A BR 9713711A BR 9713711 A BR9713711 A BR 9713711A BR 9713711 A BR9713711 A BR 9713711A
Authority
BR
Brazil
Prior art keywords
pixel
luminance
bits
pixel blocks
blocks
Prior art date
Application number
BR9713711-1A
Other languages
English (en)
Other versions
BR9713711B1 (pt
Inventor
Haoping Yu
Barth Alan Canfield
Billy Wesley Beyers Jr.
Wai-Man Lam
Original Assignee
Thompson Consumer Electroncs I
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 Thompson Consumer Electroncs I filed Critical Thompson Consumer Electroncs I
Publication of BR9713711A publication Critical patent/BR9713711A/pt
Publication of BR9713711B1 publication Critical patent/BR9713711B1/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
    • 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
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • 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
    • H04N19/50—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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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

Abstract

"APARELHO DE COMPRESSãO DE BLOCOS DE PIXELS EM UM SISTEMA DE PROCESSAMENTO DE IMAGEM" Um processador de imagem com economia de memória (20) recebe valores de erro de previsão de DPCM de sinais de vídeo digital codificado em PMEG descomprimido na forma de blocos de pixels que cont&em dados de luminância e crominância em um formato 4:2:2 ou 4:2:0 e recomprime os blocos de pixels a uma resolução predeterminada. Os dados de luminância e crominância são processados com leis de compressão diferentes durante a recompressão. Os dados de luminância são recomprimidos a uma média de seis bits por pixel, e somente um pixel de referência e um outro pixel são processados separadamente a partir de todos os outros pixels de luminância em um bloco. Os dados de crominância são recomprimidos a uma média de quatro bits por pixel. Cada bloco de pixels é armazenado com informações suspensas que facilitam a reconstrução eficiente e precisa. A reconstrução precisa de pixels é facilitada pelo processamento de um pixel de referência com precisão (31); graduação do blocos de pixels (28); emprego de tabelas de quantificação (28) que são simétricas e ajustadas ao domínio do blocos de pixels; compensação de valores de erro de previsão negativos (28) em valores positivos; uso de palavras de código em tabelas de quantificação (28) a níveis mais prováveis de ocorrer estatisticamente; e processamento de cada pixel com quantificação de três, quatro ou cincop bits (28) p0ara garantir a resolução máxima e uma média geral de quatro bits para o blocos de pixels.
BRPI9713711-1A 1996-12-17 1997-12-09 aparelho de compressão de blocos de pixels em um sistema de processamento de imagem. BR9713711B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US3360896P 1996-12-17 1996-12-17
US60/033608 1996-12-17
US08/911525 1997-08-12
US08/911,525 US6256347B1 (en) 1996-12-17 1997-08-12 Pixel block compression apparatus in an image processing system
PCT/US1997/022329 WO1998027736A2 (en) 1996-12-17 1997-12-09 Pixel block compression apparatus in an image processing system

Publications (2)

Publication Number Publication Date
BR9713711A true BR9713711A (pt) 2000-05-09
BR9713711B1 BR9713711B1 (pt) 2011-06-28

Family

ID=26709904

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9713711-1A BR9713711B1 (pt) 1996-12-17 1997-12-09 aparelho de compressão de blocos de pixels em um sistema de processamento de imagem.

Country Status (12)

Country Link
US (1) US6256347B1 (pt)
EP (1) EP0943210B1 (pt)
JP (1) JP4216341B2 (pt)
KR (1) KR100549436B1 (pt)
CN (1) CN1147161C (pt)
AU (1) AU7740898A (pt)
BR (1) BR9713711B1 (pt)
DE (1) DE69714071T2 (pt)
MY (1) MY120714A (pt)
TR (1) TR199901336T2 (pt)
TW (1) TW376664B (pt)
WO (1) WO1998027736A2 (pt)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6343101B1 (en) * 1998-01-16 2002-01-29 Ess Technology, Inc. Frame-based sign inversion method and system for spectral shaping for pulse-coded-modulation modems
JP3075265B2 (ja) * 1998-08-12 2000-08-14 ソニー株式会社 ディジタルスチルカメラおよび画像データの処理装置
KR100600421B1 (ko) * 1998-10-29 2006-07-13 코닌클리케 필립스 일렉트로닉스 엔.브이. 워터마크 검출방법
US6552749B1 (en) * 1999-01-29 2003-04-22 Intel Corporation Method and apparatus for video motion compensation, reduction and color formatting
US6754764B1 (en) * 1999-12-21 2004-06-22 Intel Corporation Method and apparatus for maintaining order in a pipelined process and its application
US6738423B1 (en) * 2000-01-21 2004-05-18 Nokia Mobile Phones Ltd. Method for encoding and decoding video information, a motion compensated video encoder and a corresponding decoder
US6459452B1 (en) * 2000-03-31 2002-10-01 Intel Corporation System, method, and apparatus for decoding digital video sequences
JP3464437B2 (ja) * 2000-07-31 2003-11-10 シャープ株式会社 デジタル映像信号伝送装置および映像表示装置
US6650773B1 (en) * 2000-09-29 2003-11-18 Hewlett-Packard Development Company, L.P. Method including lossless compression of luminance channel and lossy compression of chrominance channels
US6826584B1 (en) * 2000-12-22 2004-11-30 Sony Corporation Refinement of interpolated signals
US7043051B2 (en) * 2001-02-21 2006-05-09 Lg Electronics Inc. Proprietary watermark system for secure digital media and content distribution
US7058201B2 (en) * 2001-03-28 2006-06-06 Lg Electronics Inc. Method of embedding watermark into digital image
KR100493284B1 (ko) * 2001-05-11 2005-06-03 엘지전자 주식회사 디지털 미디어의 복제 제어 방법 및 시스템
US20030112863A1 (en) 2001-07-12 2003-06-19 Demos Gary A. Method and system for improving compressed image chroma information
JP2003110429A (ja) * 2001-09-28 2003-04-11 Sony Corp 符号化方法及び装置、復号方法及び装置、伝送方法及び装置、並びに記録媒体
CN100574450C (zh) * 2002-02-01 2009-12-23 松下电器产业株式会社 动画图象编码方法和动画图象编码装置
DE60312960T2 (de) * 2002-02-01 2007-12-13 Matsushita Electric Industrial Co., Ltd., Kadoma Kodierungsverfahren und Dekodierungsverfahren für bewegliche Bilder
TW588253B (en) * 2002-10-11 2004-05-21 Via Tech Inc Data compression method and image data compression device
US7120195B2 (en) * 2002-10-28 2006-10-10 Hewlett-Packard Development Company, L.P. System and method for estimating motion between images
US7039247B2 (en) * 2003-01-31 2006-05-02 Sony Corporation Graphic codec for network transmission
US7589788B1 (en) * 2003-02-28 2009-09-15 Intel Corporation Method and apparatus for video motion compensation, reduction and color formatting
NO319007B1 (no) * 2003-05-22 2005-06-06 Tandberg Telecom As Fremgangsmate og apparat for videokomprimering
US7502415B2 (en) * 2003-07-18 2009-03-10 Microsoft Corporation Range reduction
US8014450B2 (en) 2003-09-07 2011-09-06 Microsoft Corporation Flexible range reduction
US7649539B2 (en) * 2004-03-10 2010-01-19 Microsoft Corporation Image formats for video capture, processing and display
WO2006087314A1 (en) * 2005-02-18 2006-08-24 Thomson Licensing Method for deriving coding information for high resolution images from low resoluton images and coding and decoding devices implementing said method
KR100679047B1 (ko) * 2005-09-29 2007-02-05 삼성전자주식회사 비트 해상도 확장 방법 및 장치
US8059712B2 (en) 2006-01-13 2011-11-15 Adobe Systems Incorporated Independently adjusting the quality levels for luminance and chrominance channels in a digital image
TWI307607B (en) * 2006-02-13 2009-03-11 Novatek Microelectronics Corp Pixel data compression and decompression method and device thereof
KR101464770B1 (ko) * 2006-04-20 2014-11-26 텔레폰악티에볼라겟엘엠에릭슨(펍) 이미지 처리
US8880571B2 (en) * 2006-05-05 2014-11-04 Microsoft Corporation High dynamic range data format conversions for digital media
US20080056381A1 (en) * 2006-08-30 2008-03-06 Chih-Ta Star Sung Image compression and decompression with fast storage device accessing
CN100464588C (zh) * 2007-01-18 2009-02-25 北京中星微电子有限公司 一种数据压缩的方法和装置
US8054886B2 (en) * 2007-02-21 2011-11-08 Microsoft Corporation Signaling and use of chroma sample positioning information
KR101415564B1 (ko) 2007-10-29 2014-08-06 삼성디스플레이 주식회사 표시 장치의 구동 장치 및 방법
US8401071B2 (en) * 2007-12-19 2013-03-19 Sony Corporation Virtually lossless video data compression
CN101488194B (zh) * 2008-01-18 2013-12-25 王鑫 四方图像编码方法
TW201006251A (en) * 2008-07-30 2010-02-01 Etron Technology Inc Symbol-sharing differential pulse code modulator/demodulator, multiple differential pulse code modulator/demodulator, image encoding/decoding system and method thereof
US20100098166A1 (en) * 2008-10-17 2010-04-22 Texas Instruments Incorporated Video coding with compressed reference frames
CN101494788B (zh) * 2009-01-23 2011-07-27 炬才微电子（深圳）有限公司 视频图像的压缩/解压缩方法与装置
US8578058B2 (en) * 2010-03-10 2013-11-05 International Business Machines Corporation Real-time multi-block lossless recompression
UA109312C2 (uk) 2011-03-04 2015-08-10 Імпульсно-кодова модуляція з квантуванням при кодуванні відеоінформації
US8767823B2 (en) * 2011-03-30 2014-07-01 Industrial Technology Research Institute Method and apparatus for frame memory compression
JP5828361B2 (ja) * 2012-01-20 2015-12-02 ソニー株式会社 色差量子化パラメータ拡張
US9106936B2 (en) 2012-01-25 2015-08-11 Altera Corporation Raw format image data processing
JP2014116733A (ja) * 2012-12-07 2014-06-26 Canon Inc 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム
JP2015053590A (ja) * 2013-09-06 2015-03-19 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． 画像符号化装置および画像符号化方法
US10616578B2 (en) * 2015-01-30 2020-04-07 Texas Instruments Incorporated Semi-global matching (SGM) cost compression
CN112368745A (zh) * 2018-05-15 2021-02-12 蒙纳士大学 用于磁共振成像的图像重建的方法和系统
WO2020056763A1 (en) * 2018-09-21 2020-03-26 Alibaba Group Holding Limited Adaptive coding of video coding units based on coding block type
GB2593522B (en) 2020-03-26 2023-02-22 Imagination Tech Ltd Image data decompression
GB2593523B (en) * 2020-03-26 2023-06-14 Imagination Tech Ltd Image data compression

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422094A (en) 1981-11-06 1983-12-20 Rca Corporation Digital signal processor with symmetrical transfer characteristic
US5070402A (en) * 1987-11-27 1991-12-03 Canon Kabushiki Kaisha Encoding image information transmission apparatus
JP2625012B2 (ja) 1989-02-16 1997-06-25 富士写真フイルム株式会社 画像信号圧縮符号化装置
GB2230673A (en) 1989-04-14 1990-10-24 Philips Electronic Associated Generating a series of dpcm code words for storing colour image data
DE69032177T2 (de) 1989-12-25 1998-11-12 Mitsubishi Electric Corp Kodierungsgerät
JPH0474063A (ja) 1990-07-13 1992-03-09 Matsushita Electric Ind Co Ltd 画像の符号化方法
JPH0662431A (ja) 1992-08-14 1994-03-04 Oki Electric Ind Co Ltd カラ−画素デ−タの量子化／逆量子化方法
US5539865A (en) 1992-11-10 1996-07-23 Adobe Systems, Inc. Method and apparatus for processing data for a visual-output device with reduced buffer memory requirements
US5541595A (en) 1994-05-19 1996-07-30 Matsushita Electric Corporation Of America Variable length code decoder for simultaneous decoding the most significant bits and the least significant bits of a variable length code
EP0687111B1 (de) 1994-06-06 2003-08-06 sci worx GmbH Verfahren zur Codierung/Decodierung eines Datenstroms
KR970010397B1 (ko) 1994-10-24 1997-06-25 엘지전자 주식회사 티브이의 색신호 처리 장치
EP0778709B1 (en) 1995-12-04 2001-05-23 STMicroelectronics S.r.l. MPEG-2 decoding with a reduced RAM requisite by ADPCM recompression before storing MPEG decompressed data
WO1997047139A2 (en) 1996-06-05 1997-12-11 Philips Electronics N.V. Method and device for decoding coded digital video signals
US5844608A (en) * 1996-12-12 1998-12-01 Thomson Consumer Electronics, Inc. Picture element processor for a memory management system

Also Published As

Publication number Publication date
CN1246246A (zh) 2000-03-01
DE69714071T2 (de) 2002-12-12
JP2002514363A (ja) 2002-05-14
EP0943210A1 (en) 1999-09-22
DE69714071D1 (de) 2002-08-22
WO1998027736A2 (en) 1998-06-25
US6256347B1 (en) 2001-07-03
WO1998027736A3 (en) 1998-08-06
KR20000057339A (ko) 2000-09-15
CN1147161C (zh) 2004-04-21
EP0943210B1 (en) 2002-07-17
TW376664B (en) 1999-12-11
TR199901336T2 (xx) 1999-09-21
AU7740898A (en) 1998-07-15
BR9713711B1 (pt) 2011-06-28
MY120714A (en) 2005-11-30
KR100549436B1 (ko) 2006-02-06
JP4216341B2 (ja) 2009-01-28

Similar Documents

Publication Publication Date Title
BR9713711A (pt) Aparelho de compressão de blocos de pixels em um sistema de processamento de imagem
BR0110770A (pt) Método de codificação/ decodificação de um sinal de vìdeo representando uma sequência de imagens, e, codificador/decodificador de vìdeo
BRPI0502092A (pt) Codificação à prova de perda prognóstica de imagens e vìdeo
BR0110493A (pt) Método de codificação/decodificação de um sinal de vìdeo representando uma sequência de imagens, método de encobrimento de erros, e, codificador/decodificador de vìdeo
BR9901692A (pt) Remoção de ruìdo de fundo para uma copiadora colorida digitavel de baixo custo
DE69226749D1 (de) System zur Kompression von sich bewegenden Videobildern mit mehrfachen Auflösungsmerkmalen
DE3381217D1 (de) Verbesserung von videobildern mittels selektivem zusatz von bildpunkten mit grauskala.
BR0110138A (pt) Método para receber e processar um sinal digital
BR9713712A (pt) Processador de sinais de vìdeo de múltiplos formatos
ATE116088T1 (de) Digitales signalverarbeitungssystem.
ES2159593T3 (es) Sistema para codificar una señal de video en presencia de un gradiente de intensidad de imagen.
EP0907287A3 (en) Conversion of DV format encoded video data into MPEG format
BR9913202A (pt) Alocação dinamica de bits para multiplexação estatìstica de sinais de vìdeo digitais comprimidos e não comprimidos
BR0206783A (pt) Método e codificador para codificar um sinal, corrente de bits que representa um sinal codificado, meio de armazenagem, método e decodificador para decodificar uma corrente de bits que representa um sinal codificado, transmissor, receptor, e, sistema
BR9907903A (pt) Processamento de dados digitais de imagem em um decodificador
CA2477517A1 (en) Color selection scheme for digital video watermarking
CA2014548A1 (en) Efficient encoding/decoding in the decomposition and recomposition of a high resolution image utilizing its low resolution replica
DE68921949T2 (de) System zur Kodierung eines Bildsignals.
BRPI0414851A (pt) método e sistema automatizado de produzir imagens codificadas
CA2266724A1 (en) System for translating visual display object files and method of operation thereof
AU2724901A (en) Method and apparatus for video decoding on a multiprocessor system
SE9703849L (sv) Nedskalning av bilder
EP1120974A3 (en) Scanning with subsequent adaptive subband coding
KR910005690A (ko) 화상 데이타의 부호화 장치
BR9907902A (pt) Processamento de dados digitais em um decodificador

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 28/06/2011, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 18A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2342 DE 24-11-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.

B15K Others concerning applications: alteration of classification

Ipc: H04N 19/98 (2014.01), H04N 19/423 (2014.0