DE69631108D1 - Nachfilterung zur Entfernung von Artefakten in DCT-codierten Bildern - Google Patents

Nachfilterung zur Entfernung von Artefakten in DCT-codierten Bildern

Info

Publication number
DE69631108D1
DE69631108D1 DE69631108T DE69631108T DE69631108D1 DE 69631108 D1 DE69631108 D1 DE 69631108D1 DE 69631108 T DE69631108 T DE 69631108T DE 69631108 T DE69631108 T DE 69631108T DE 69631108 D1 DE69631108 D1 DE 69631108D1
Authority
DE
Germany
Prior art keywords
dct
filtering
post
encoded images
remove artifacts
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69631108T
Other languages
English (en)
Other versions
DE69631108T2 (de
Inventor
Patrick William Devaney
Daniel Chandran Gnanaprakasam
Thomas James Leacock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69631108D1 publication Critical patent/DE69631108D1/de
Publication of DE69631108T2 publication Critical patent/DE69631108T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N19/85—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
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
    • 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
    • H04N19/50—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
    • H04N19/527—Global motion vector estimation
    • 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
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
DE69631108T 1995-10-20 1996-10-18 Nachfilterung zur Entfernung von Artefakten in DCT-codierten Bildern Expired - Fee Related DE69631108T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/546,049 US5819035A (en) 1995-10-20 1995-10-20 Post-filter for removing ringing artifacts of DCT coding
US546049 1995-10-20

Publications (2)

Publication Number Publication Date
DE69631108D1 true DE69631108D1 (de) 2004-01-29
DE69631108T2 DE69631108T2 (de) 2004-06-09

Family

ID=24178647

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69631108T Expired - Fee Related DE69631108T2 (de) 1995-10-20 1996-10-18 Nachfilterung zur Entfernung von Artefakten in DCT-codierten Bildern

Country Status (6)

Country Link
US (1) US5819035A (de)
EP (1) EP0769878B1 (de)
JP (1) JP4004089B2 (de)
KR (1) KR100249407B1 (de)
CN (1) CN1110961C (de)
DE (1) DE69631108T2 (de)

Families Citing this family (123)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881837B1 (de) * 1997-05-30 2003-03-26 STMicroelectronics S.r.l. Nachverarbeitungsmethode zur Verringerung von Artefakten in blockweise kodierten digitalen Bildern, und Vorrichtung zur Verwendung der Methode
US6389177B1 (en) 1996-07-02 2002-05-14 Apple Computer, Inc. System and method using edge processing to remove blocking artifacts from decompressed images
US6496605B1 (en) * 1996-08-02 2002-12-17 United Module Corporation Block deformation removing filter, image processing apparatus using the same, method of filtering image signal, and storage medium for storing software therefor
JP3800704B2 (ja) * 1997-02-13 2006-07-26 ソニー株式会社 映像信号処理装置及び方法
KR100219628B1 (ko) * 1997-02-15 1999-09-01 윤종용 루프필터링 방법 및 루프필터
CA2228361C (en) * 1997-02-28 2002-01-29 Daisaku Komiya Motion picture converting apparatus
US6072591A (en) * 1997-06-30 2000-06-06 Xerox Corporation Sum and difference error diffusion
KR100243225B1 (ko) 1997-07-16 2000-02-01 윤종용 블록화효과 및 링잉잡음 감소를 위한 신호적응필터링방법 및신호적응필터
US6260131B1 (en) * 1997-11-18 2001-07-10 Intrinsity, Inc. Method and apparatus for TLB memory ordering
US6370632B1 (en) 1997-11-18 2002-04-09 Intrinsity, Inc. Method and apparatus that enforces a regional memory model in hierarchical memory systems
JP4186242B2 (ja) * 1997-12-26 2008-11-26 ソニー株式会社 画像信号処理装置及び画像信号処理方法
JPH11234668A (ja) * 1998-02-13 1999-08-27 Sony Corp 映像符号化装置
US6014233A (en) * 1998-06-09 2000-01-11 Xerox Corporation Error diffusion for color images with semi-vector quantization
US6463102B1 (en) * 1998-09-11 2002-10-08 Harmonic, Inc. Digital video compressor with border processor
KR100616761B1 (ko) * 1999-01-15 2006-08-31 코닌클리케 필립스 일렉트로닉스 엔.브이. 선명도를 강화하기 위한 방법 및 장치
US6574374B1 (en) * 1999-04-14 2003-06-03 Intel Corporation Enhancing image compression performance by morphological processing
KR100296596B1 (ko) * 1999-07-14 2001-07-12 윤종용 4방향 일차원 고역 통과 필터링에 의한 윤곽선 강조 방법
JP2001045336A (ja) 1999-07-29 2001-02-16 Matsushita Electric Ind Co Ltd ノイズ検出装置、ノイズ検出方法、信号処理装置および信号処理方法
US6721457B1 (en) * 1999-08-27 2004-04-13 Hewlett-Packard Development Company, L.P. Method for enhancing digital images
KR100675498B1 (ko) * 1999-09-28 2007-02-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 필터링 장치 및 방법
US6714992B1 (en) * 2000-02-25 2004-03-30 Navic Systems, Inc. Method and system for embedded network device installation
US7392281B1 (en) 2000-02-25 2008-06-24 Navic Systems, Inc. System and method for providing guaranteed delivery of messages to embedded devices over a data network
US6707940B1 (en) 2000-03-31 2004-03-16 Intel Corporation Method and apparatus for image segmentation
US7203234B1 (en) 2000-03-31 2007-04-10 Sharp Laboratories Of America, Inc. Method of directional filtering for post-processing compressed video
US6707952B1 (en) 2000-05-30 2004-03-16 Sharp Laboratories Of America, Inc. Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
US7440635B2 (en) * 2000-05-30 2008-10-21 Sharp Laboratories Of America, Inc. Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
JP4641704B2 (ja) * 2000-09-12 2011-03-02 パナソニック株式会社 ノイズ低減化方法、ノイズ低減化装置、記録媒体、及びプログラム
JP4688279B2 (ja) * 2000-11-21 2011-05-25 富士通株式会社 動画像の空間解像度自動設定方法及び装置
US7047273B2 (en) 2000-11-28 2006-05-16 Navic Systems, Inc. Load balancing in set top cable box environment
US7136538B2 (en) * 2000-12-21 2006-11-14 Matsushita Electric Industrial Co., Ltd. Noise reducing apparatus and noise reducing method
US6845180B2 (en) * 2001-03-16 2005-01-18 Sharp Laboratories Of America, Inc. Predicting ringing artifacts in digital images
US7006255B2 (en) * 2001-03-29 2006-02-28 Sharp Laboratories Of America Adaptive image filtering based on a distance transform
US7075993B2 (en) * 2001-06-12 2006-07-11 Digital Interactive Streams, Inc. Correction system and method for enhancing digital video
US7003173B2 (en) * 2001-06-12 2006-02-21 Sharp Laboratories Of America, Inc. Filter for combined de-ringing and edge sharpening
US7003174B2 (en) * 2001-07-02 2006-02-21 Corel Corporation Removal of block encoding artifacts
US6822675B2 (en) * 2001-07-03 2004-11-23 Koninklijke Philips Electronics N.V. Method of measuring digital video quality
US7050649B2 (en) * 2001-07-23 2006-05-23 Micron Technology, Inc. Suppression of ringing artifacts during image resizing
EP1303143A3 (de) * 2001-10-16 2004-01-14 Koninklijke Philips Electronics N.V. Blockeffektdetektionsverfahren
ES2754625T3 (es) 2001-11-29 2020-04-20 Godo Kaisha Ip Bridge 1 Método de extracción de distorsión de codificación
US6873741B2 (en) * 2002-01-10 2005-03-29 Sharp Laboratories Of America Nonlinear edge-enhancement filter
US7031552B2 (en) * 2002-04-05 2006-04-18 Seiko Epson Corporation Adaptive post-filtering for reducing noise in highly compressed image/video coding
US7239754B2 (en) * 2002-07-16 2007-07-03 Hiroshi Akimoto Method, apparatus and system for compressing still images in multipurpose compression systems
US7379609B2 (en) * 2002-07-19 2008-05-27 Samsung Electronics Co., Ltd. Image processing apparatus and method for conversion between raster and block formats
FR2842981A1 (fr) * 2002-07-24 2004-01-30 Koninkl Philips Electronics Nv Circuit de filtrage de donnees numeriques
US6807317B2 (en) 2002-10-25 2004-10-19 Motorola, Inc. Method and decoder system for reducing quantization effects of a decoded image
KR100502413B1 (ko) * 2002-11-07 2005-07-19 삼성전자주식회사 라스터 스캔 순서 화상 데이터와 블록 스캔 순서 화상데이터 사이의 변환을 위한 화상 처리 장치 및 방법
EP1565875A1 (de) * 2002-11-25 2005-08-24 Sarnoff Corporation Verfahren und vorrichtung zur messung der qualität komprimierter videosequenzen ohne referenzen
US7254277B2 (en) * 2002-12-30 2007-08-07 Texas Instruments Incorporated Image processing with minimization of ringing artifacts and noise
US7212571B2 (en) * 2003-01-31 2007-05-01 Seiko Epson Corporation Method and apparatus for DCT domain filtering for block based encoding
JP2004362395A (ja) * 2003-06-06 2004-12-24 Ge Medical Systems Global Technology Co Llc 画像処理方法および装置
US7602851B2 (en) 2003-07-18 2009-10-13 Microsoft Corporation Intelligent differential quantization of video coding
US8218624B2 (en) 2003-07-18 2012-07-10 Microsoft Corporation Fractional quantization step sizes for high bit rates
US7580584B2 (en) 2003-07-18 2009-08-25 Microsoft Corporation Adaptive multiple quantization
US7738554B2 (en) 2003-07-18 2010-06-15 Microsoft Corporation DC coefficient signaling at small quantization step sizes
US10554985B2 (en) 2003-07-18 2020-02-04 Microsoft Technology Licensing, Llc DC coefficient signaling at small quantization step sizes
US7430335B2 (en) * 2003-08-13 2008-09-30 Apple Inc Pre-processing method and system for data reduction of video sequences and bit rate reduction of compressed video sequences using spatial filtering
US7403568B2 (en) * 2003-08-13 2008-07-22 Apple Inc. Pre-processing method and system for data reduction of video sequences and bit rate reduction of compressed video sequences using temporal filtering
KR100575733B1 (ko) * 2003-08-26 2006-05-03 엘지전자 주식회사 압축 동영상의 움직임 객체 분할 방법
TW200520225A (en) * 2003-10-24 2005-06-16 Matsushita Electric Ind Co Ltd Pixel arranging apparatus, solid-state image sensing apparatus, and camera
US7355639B2 (en) * 2003-11-06 2008-04-08 Omnivision Technologies, Inc. Lens correction using processed YUV data
JP4066367B2 (ja) * 2003-11-28 2008-03-26 ノーリツ鋼機株式会社 画像ノイズ除去方法
US7346226B2 (en) * 2003-12-16 2008-03-18 Genesis Microchip Inc. Method and apparatus for MPEG artifacts reduction
US7457438B2 (en) 2003-12-23 2008-11-25 Genesis Microchip Inc. Robust camera pan vector estimation using iterative center of mass
US7499494B2 (en) * 2003-12-23 2009-03-03 Genesis Microchip Inc. Vector selection decision for pixel interpolation
US7480334B2 (en) * 2003-12-23 2009-01-20 Genesis Microchip Inc. Temporal motion vector filtering
US7471845B2 (en) * 2004-01-06 2008-12-30 Sharp Laboratories Of America, Inc. De-ringing filter
US8503542B2 (en) * 2004-03-18 2013-08-06 Sony Corporation Methods and apparatus to reduce blocking noise and contouring effect in motion compensated compressed video
US7315661B2 (en) * 2004-04-01 2008-01-01 Mediatek Inc. Directional interpolation method using DCT information and related device
US7801383B2 (en) 2004-05-15 2010-09-21 Microsoft Corporation Embedded scalar quantizers with arbitrary dead-zone ratios
WO2005124664A2 (en) * 2004-06-14 2005-12-29 Precoad, Inc. Image clean-up and pre-coding
KR100557660B1 (ko) 2004-07-29 2006-03-10 매그나칩 반도체 유한회사 영상 신호에서의 플리커 검출 방법
US7697782B2 (en) 2004-09-16 2010-04-13 Sharp Laboratories Of America, Inc. System for reducing ringing artifacts
US7936941B2 (en) * 2004-10-08 2011-05-03 Panasonic Corporation Apparatus for clearing an image and method thereof
US7136536B2 (en) * 2004-12-22 2006-11-14 Telefonaktiebolaget L M Ericsson (Publ) Adaptive filter
WO2006127129A2 (en) * 2005-04-19 2006-11-30 University Of Georgia Research Foundation, Inc. Image edge detection systems and methods
TWI295140B (en) * 2005-05-20 2008-03-21 Univ Nat Chiao Tung A dual-mode high throughput de-blocking filter
US8422546B2 (en) 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
JP2006340005A (ja) * 2005-06-01 2006-12-14 Sony Corp ディジタル信号処理装置とディジタル信号処理方法およびプログラム。
US7747082B2 (en) 2005-10-03 2010-06-29 Xerox Corporation JPEG detectors and JPEG image history estimators
US8848057B2 (en) * 2005-12-05 2014-09-30 Samsung Electronics Co., Ltd. Home security applications for television with digital video cameras
US8218080B2 (en) * 2005-12-05 2012-07-10 Samsung Electronics Co., Ltd. Personal settings, parental control, and energy saving control of television with digital video camera
JP4943721B2 (ja) * 2006-03-20 2012-05-30 株式会社リコー 画像データのカラーノイズ除去方法及びこの方法を用いた撮像装置
US8130828B2 (en) 2006-04-07 2012-03-06 Microsoft Corporation Adjusting quantization to preserve non-zero AC coefficients
US7974340B2 (en) 2006-04-07 2011-07-05 Microsoft Corporation Adaptive B-picture quantization control
US7995649B2 (en) 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level
US8503536B2 (en) 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US8059721B2 (en) 2006-04-07 2011-11-15 Microsoft Corporation Estimating sample-domain distortion in the transform domain with rounding compensation
GB2437337A (en) * 2006-04-21 2007-10-24 Snell & Wilcox Ltd Measuring block artefacts in video data using an auto-correlation function
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
US8369417B2 (en) * 2006-05-19 2013-02-05 The Hong Kong University Of Science And Technology Optimal denoising for video coding
US8831111B2 (en) * 2006-05-19 2014-09-09 The Hong Kong University Of Science And Technology Decoding with embedded denoising
US20070280552A1 (en) * 2006-06-06 2007-12-06 Samsung Electronics Co., Ltd. Method and device for measuring MPEG noise strength of compressed digital image
US7295716B1 (en) * 2006-06-30 2007-11-13 Fujifilm Corporation Method and apparatus for diffusion based image relighting
US7747045B2 (en) * 2006-06-30 2010-06-29 Fujifilm Corporation Method and apparatus for diffusion based illumination normalization
US7860341B2 (en) * 2006-07-21 2010-12-28 Varian Medical Systems, Inc. System and method for correcting for ring artifacts in an image
CN101123682B (zh) * 2006-08-11 2011-06-22 松下电器产业株式会社 可减少图像振铃噪声的方法、装置及集成电路
TR201810171T4 (tr) * 2006-10-03 2018-08-27 Vestel Elektronik Sanayi Ve Ticaret Anonim Sirketi Bir girdi görüntüsündeki halka şeklinde artefaktları en aza indirmek için yöntem ve aparat.
US7796834B2 (en) * 2006-11-16 2010-09-14 Texas Instruments Incorporated Post-processing technique for noise reduction of DCT-based compressed images
TWI330041B (en) * 2006-11-28 2010-09-01 Realtek Semiconductor Corp Image processing method and device for performing block effect reduction
US7952647B2 (en) * 2006-12-27 2011-05-31 Intel Corporation Method and apparatus of content adaptive detailing filtering for digital pictures
US8238424B2 (en) 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
US7538712B2 (en) * 2007-03-22 2009-05-26 Harris Corporation Method and apparatus for decompression of SAR images
US8498335B2 (en) 2007-03-26 2013-07-30 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US8243797B2 (en) 2007-03-30 2012-08-14 Microsoft Corporation Regions of interest for quality adjustments
US8442337B2 (en) 2007-04-18 2013-05-14 Microsoft Corporation Encoding adjustments for animation content
US8331438B2 (en) 2007-06-05 2012-12-11 Microsoft Corporation Adaptive selection of picture-level quantization parameters for predicted video pictures
US8837849B2 (en) 2007-06-26 2014-09-16 Google Inc. Method for noise-robust color changes in digital images
DE102007058498A1 (de) * 2007-12-05 2009-06-10 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Rauschunterdrückung in medizinischen Bildern
US8200028B2 (en) * 2007-12-07 2012-06-12 Csr Technology Inc. System and method for detecting edges in a video signal
US8295367B2 (en) * 2008-01-11 2012-10-23 Csr Technology Inc. Method and apparatus for video signal processing
US8189933B2 (en) 2008-03-31 2012-05-29 Microsoft Corporation Classifying and controlling encoding quality for textured, dark smooth and smooth video content
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
KR101639434B1 (ko) * 2009-01-09 2016-07-13 성균관대학교산학협력단 와이너-지브 부호화 및 복호화 시스템 및 방법
EP2226760A1 (de) 2009-03-03 2010-09-08 Sony Corporation Verfahren und Vorrichtung zum Verringern von Kompressionsartefakten in Videosignalen
US20100245672A1 (en) * 2009-03-03 2010-09-30 Sony Corporation Method and apparatus for image and video processing
JP2011049901A (ja) 2009-08-27 2011-03-10 Panasonic Corp 固体撮像装置、撮像装置
US8824826B2 (en) * 2011-02-24 2014-09-02 Foveon, Inc. Methods for performing fast detail-preserving image filtering
JP6125215B2 (ja) 2012-09-21 2017-05-10 株式会社東芝 復号装置、及び符号化装置
KR101426610B1 (ko) * 2012-10-31 2014-08-05 연세대학교 산학협력단 영상 노이즈 제거 방법 및 장치
US8831354B1 (en) * 2014-01-08 2014-09-09 Faroudja Enterprises, Inc. System and method for edge-adaptive and recursive non-linear filtering of ringing effect
US9508020B2 (en) 2014-07-16 2016-11-29 Sony Corporation Image processing system with artifact suppression mechanism and method of operation thereof
WO2018105579A1 (ja) 2016-12-09 2018-06-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置、復号装置、符号化方法及び復号方法
US20230096874A1 (en) * 2021-09-29 2023-03-30 Ati Technologies Ulc Content adaptive filtering via ringing estimation and suppression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906712A1 (de) * 1989-03-03 1990-09-06 Thomson Brandt Gmbh Elektronisches bildwiedergabegeraet
US4999705A (en) 1990-05-03 1991-03-12 At&T Bell Laboratories Three dimensional motion compensated video coding
US5598184A (en) * 1992-03-27 1997-01-28 Hewlett-Packard Company Method and apparatus for improved color recovery in a computer graphics system
US5294974A (en) 1992-07-24 1994-03-15 Matsushita Electric Corporation Of America High-definition video encoding system having color-sensitive quantization
US5325125A (en) * 1992-09-24 1994-06-28 Matsushita Electric Corporation Of America Intra-frame filter for video compression systems
US5581371A (en) * 1995-03-07 1996-12-03 Eastman Kodak Company Error diffusion method

Also Published As

Publication number Publication date
KR100249407B1 (ko) 2000-03-15
EP0769878A2 (de) 1997-04-23
DE69631108T2 (de) 2004-06-09
KR970025165A (ko) 1997-05-30
JP4004089B2 (ja) 2007-11-07
US5819035A (en) 1998-10-06
CN1151662A (zh) 1997-06-11
JPH09200759A (ja) 1997-07-31
EP0769878A3 (de) 1999-12-29
CN1110961C (zh) 2003-06-04
EP0769878B1 (de) 2003-12-17

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