ATE75333T1 - Vorrichtung zur anpassung eines digitalsignalverarbeitungssystems fuer blockverarbeitung mit minimalen blockartefakten. - Google Patents

Vorrichtung zur anpassung eines digitalsignalverarbeitungssystems fuer blockverarbeitung mit minimalen blockartefakten.

Info

Publication number
ATE75333T1
ATE75333T1 AT86904499T AT86904499T ATE75333T1 AT E75333 T1 ATE75333 T1 AT E75333T1 AT 86904499 T AT86904499 T AT 86904499T AT 86904499 T AT86904499 T AT 86904499T AT E75333 T1 ATE75333 T1 AT E75333T1
Authority
AT
Austria
Prior art keywords
signal
blocks
block
adapting
digital signal
Prior art date
Application number
AT86904499T
Other languages
English (en)
Inventor
Henrique S Malvar
Original Assignee
Picturetel Corp
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 Picturetel Corp filed Critical Picturetel Corp
Application granted granted Critical
Publication of ATE75333T1 publication Critical patent/ATE75333T1/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/527Global motion vector estimation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86Methods 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

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)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Complex Calculations (AREA)
  • Image Processing (AREA)
  • Error Detection And Correction (AREA)
AT86904499T 1985-06-03 1986-06-03 Vorrichtung zur anpassung eines digitalsignalverarbeitungssystems fuer blockverarbeitung mit minimalen blockartefakten. ATE75333T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/740,806 US4754492A (en) 1985-06-03 1985-06-03 Method and system for adapting a digitized signal processing system for block processing with minimal blocking artifacts
PCT/US1986/001212 WO1986007479A1 (en) 1985-06-03 1986-06-03 Method and system for adapting a digitized signal processing system for block processing with minimal blocking artifacts
EP86904499A EP0224583B1 (de) 1985-06-03 1986-06-03 Vorrichtung zur anpassung eines digitalsignalverarbeitungssystems für blockverarbeitung mit minimalen blockartefakten

Publications (1)

Publication Number Publication Date
ATE75333T1 true ATE75333T1 (de) 1992-05-15

Family

ID=24978159

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86904499T ATE75333T1 (de) 1985-06-03 1986-06-03 Vorrichtung zur anpassung eines digitalsignalverarbeitungssystems fuer blockverarbeitung mit minimalen blockartefakten.

Country Status (7)

Country Link
US (1) US4754492A (de)
EP (1) EP0224583B1 (de)
JP (1) JP2651908B2 (de)
AT (1) ATE75333T1 (de)
CA (1) CA1255391A (de)
DE (1) DE3684996D1 (de)
WO (1) WO1986007479A1 (de)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5496927A (en) * 1985-02-04 1996-03-05 Merrell Pharmaceuticals Inc. Peptidase inhibitors
BE904101A (nl) * 1986-01-24 1986-07-24 Bell Telephone Mfg Cy Beeldverwerkingssysteem en daarin toegepaste fazevergrendelingslus.
GB8621994D0 (en) * 1986-09-12 1986-10-22 Crosfield Electronics Ltd Image processing
US5045853A (en) * 1987-06-17 1991-09-03 Intel Corporation Method and apparatus for statistically encoding digital data
GB8800503D0 (en) * 1988-01-11 1988-02-10 Crosfield Electronics Ltd Apparatus for generating two-dimensional coloured display
US5121216A (en) * 1989-07-19 1992-06-09 Bell Communications Research Adaptive transform coding of still images
JP2844695B2 (ja) * 1989-07-19 1999-01-06 ソニー株式会社 信号符号化装置
US5267051A (en) * 1989-12-22 1993-11-30 Eastman Kodak Company High speed compression of imagery data
US5502789A (en) * 1990-03-07 1996-03-26 Sony Corporation Apparatus for encoding digital data with reduction of perceptible noise
WO1991014340A1 (en) * 1990-03-15 1991-09-19 Thomson Consumer Electronics S.A. Digital image processing including block edges filtering
US5875266A (en) * 1990-07-31 1999-02-23 Fujitsu Limited Image data processing a method and apparatus
US5416854A (en) 1990-07-31 1995-05-16 Fujitsu Limited Image data processing method and apparatus
US5020121A (en) * 1990-08-16 1991-05-28 Hewlett-Packard Company Neighborhood block prediction bit compression
GB2247132A (en) * 1990-08-17 1992-02-19 Sony Broadcast & Communication Digital video data compression
EP0487282B1 (de) * 1990-11-19 2000-03-01 Canon Kabushiki Kaisha Bildverarbeitungsgerät und -Verfahren
US5172227A (en) * 1990-12-10 1992-12-15 Eastman Kodak Company Image compression with color interpolation for a single sensor image system
US5218650A (en) * 1991-01-02 1993-06-08 Ricoh Corporation Quantization method for use in image compression
US5625714A (en) * 1991-01-10 1997-04-29 Olympus Optical Co., Ltd. Image signal decoding device capable of removing block distortion with simple structure
GB2253318B (en) * 1991-02-27 1994-07-20 Stc Plc Image processing
JP3297445B2 (ja) * 1991-04-23 2002-07-02 キヤノン株式会社 出力方法及び装置
US5742345A (en) * 1991-07-05 1998-04-21 Samsung Electronics Co., Ltd. System for transmitting and receiving video signals using interpolation of adaptive factor
US5454051A (en) * 1991-08-05 1995-09-26 Eastman Kodak Company Method of reducing block artifacts created by block transform compression algorithms
US5787207A (en) * 1991-12-30 1998-07-28 Golin; Stuart J. Method and apparatus for minimizing blockiness in reconstructed images
JPH05219385A (ja) * 1992-02-07 1993-08-27 Hudson Soft Co Ltd 画像圧縮・伸張方法および装置
US6205259B1 (en) 1992-04-09 2001-03-20 Olympus Optical Co., Ltd. Image processing apparatus
JP3297742B2 (ja) * 1992-04-13 2002-07-02 ソニー株式会社 画像再生装置及び画像再生方法
US5367385A (en) * 1992-05-07 1994-11-22 Picturetel Corporation Method and apparatus for processing block coded image data to reduce boundary artifacts between adjacent image blocks
KR0148130B1 (ko) * 1992-05-18 1998-09-15 강진구 블럭킹아티팩트를 억제시키는 부호화/복호화 방법 및 그 장치
JP3165296B2 (ja) * 1992-12-25 2001-05-14 三菱電機株式会社 フレーム間符号化処理方式及びフレーム間符号化処理方法及び符号化制御方式
JPH06327002A (ja) * 1993-05-11 1994-11-25 Olympus Optical Co Ltd 動画像符号化装置
KR970009302B1 (en) * 1993-08-17 1997-06-10 Lg Electronics Inc Block effect reducing apparatus for hdtv
US5420942A (en) * 1993-09-21 1995-05-30 Levit; Itzhak Methods and devices for self-correcting video compression
JP3195142B2 (ja) * 1993-10-29 2001-08-06 キヤノン株式会社 画像処理方法及び装置
US5473384A (en) * 1993-12-16 1995-12-05 At&T Corp. Method of and system for enhancing distorted graphical information
US5742346A (en) * 1994-08-09 1998-04-21 Picture Tel Corporation Spatially adaptive blur filter
US6088130A (en) * 1994-09-27 2000-07-11 Canon Kabushiki Kaisha Image processing apparatus and method
JP3686695B2 (ja) * 1994-10-20 2005-08-24 オリンパス株式会社 画像処理装置
US5802218A (en) * 1994-11-04 1998-09-01 Motorola, Inc. Method, post-processing filter, and video compression system for suppressing mosquito and blocking atrifacts
US5629778A (en) * 1995-05-15 1997-05-13 Polaroid Corporation Method and apparatus for reduction of image data compression noise
US5751861A (en) * 1995-06-30 1998-05-12 Intel Corporation Reducing residual artifacts in video coding schemes with integer motion compensation
FR2737931B1 (fr) * 1995-08-17 1998-10-02 Siemens Ag Procede destine au traitement de blocs d'images decodes d'un procede de codage d'images a base de blocs
US5774597A (en) * 1995-09-05 1998-06-30 Ge Medical Systems, Inc. Image compression and decompression using overlapped cosine transforms
GB2305798B (en) * 1995-09-28 1999-10-20 Sony Uk Ltd Spatial frequency-domain video signal processing
US6026182A (en) * 1995-10-05 2000-02-15 Microsoft Corporation Feature segmentation
US5799113A (en) * 1996-01-19 1998-08-25 Microsoft Corporation Method for expanding contracted video images
US5787203A (en) * 1996-01-19 1998-07-28 Microsoft Corporation Method and system for filtering compressed video images
US5778098A (en) * 1996-03-22 1998-07-07 Microsoft Corporation Sprite coding
US5982438A (en) * 1996-03-22 1999-11-09 Microsoft Corporation Overlapped motion compensation for object coding
US5764814A (en) * 1996-03-22 1998-06-09 Microsoft Corporation Representation and encoding of general arbitrary shapes
DE19626985C1 (de) * 1996-07-04 1998-01-02 Siemens Ag Verfahren und Anordnung zur Reduktion von Codierungsartefakten von blockbasierten Bildcodierungsverfahren und objektbasierten Bildcodierungsverfahren
US6075875A (en) * 1996-09-30 2000-06-13 Microsoft Corporation Segmentation of image features using hierarchical analysis of multi-valued image data and weighted averaging of segmentation results
US6094453A (en) * 1996-10-11 2000-07-25 Digital Accelerator Corporation Digital data compression with quad-tree coding of header file
US5748789A (en) * 1996-10-31 1998-05-05 Microsoft Corporation Transparent block skipping in object-based video coding systems
US6052490A (en) * 1997-02-14 2000-04-18 At&T Corp. Video coder employing pixel transposition
KR100251549B1 (ko) * 1997-02-28 2000-04-15 구자홍 블로킹 효과 제거 기능을 갖는 디지탈 영상 복호화 장치
DE69837430T2 (de) * 1997-05-07 2007-10-31 Landmark Graphics Corp., Houston Verfahren zur datenkompression
FI103003B1 (fi) * 1997-06-13 1999-03-31 Nokia Mobile Phones Ltd Suodatusmenetelmä, suodatin ja matkaviestinpääte
KR100281099B1 (ko) * 1997-07-30 2001-04-02 구자홍 동영상의부호화에따른블록화현상제거방법
IL122258A (en) * 1997-11-20 2002-08-14 Israel Aircraft Ind Ltd Method and system for determining temperature and/or emissivity function of objects by remote sensing
US6400831B2 (en) 1998-04-02 2002-06-04 Microsoft Corporation Semantic video object segmentation and tracking
US6029126A (en) * 1998-06-30 2000-02-22 Microsoft Corporation Scalable audio coder and decoder
US6115689A (en) * 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
US6285801B1 (en) * 1998-05-29 2001-09-04 Stmicroelectronics, Inc. Non-linear adaptive image filter for filtering noise such as blocking artifacts
US6249549B1 (en) * 1998-10-09 2001-06-19 Matsushita Electric Industrial Co., Ltd. Down conversion system using a pre-decimation filter
JP3623679B2 (ja) * 1999-01-06 2005-02-23 日本電気株式会社 動画像符号化装置
FR2790173A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
US6577766B1 (en) * 1999-11-10 2003-06-10 Logitech, Inc. Method and apparatus for motion detection in the discrete cosine transform domain
WO2002015583A1 (en) 2000-08-15 2002-02-21 Microsoft Corporation Methods, systems and data structures for timecoding media samples
US6822675B2 (en) * 2001-07-03 2004-11-23 Koninklijke Philips Electronics N.V. Method of measuring digital video quality
ATE322734T1 (de) * 2001-08-21 2006-04-15 Koninkl Philips Electronics Nv Audio kodierer mit unregelmässiger filterbank
US7164797B2 (en) * 2002-04-25 2007-01-16 Microsoft Corporation Clustering
US7120297B2 (en) * 2002-04-25 2006-10-10 Microsoft Corporation Segmented layered image system
US7110596B2 (en) 2002-04-25 2006-09-19 Microsoft Corporation System and method facilitating document image compression utilizing a mask
US7263227B2 (en) * 2002-04-25 2007-08-28 Microsoft Corporation Activity detector
US7043079B2 (en) 2002-04-25 2006-05-09 Microsoft Corporation “Don't care” pixel interpolation
US7392472B2 (en) * 2002-04-25 2008-06-24 Microsoft Corporation Layout analysis
US7024039B2 (en) * 2002-04-25 2006-04-04 Microsoft Corporation Block retouching
US6831868B2 (en) * 2002-12-05 2004-12-14 Intel Corporation Byte aligned redundancy for memory array
US7471726B2 (en) * 2003-07-15 2008-12-30 Microsoft Corporation Spatial-domain lapped transform in digital media compression
US7724827B2 (en) 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7369709B2 (en) * 2003-09-07 2008-05-06 Microsoft Corporation Conditional lapped transform
US7643688B2 (en) * 2003-10-10 2010-01-05 Hewlett-Packard Development Company, L.P. Reducing artifacts in compressed images
US7570818B2 (en) * 2003-10-17 2009-08-04 Hewlett-Packard Development Company, L.P. Method for deblocking and transcoding a media stream
US7539870B2 (en) * 2004-02-10 2009-05-26 Microsoft Corporation Media watermarking by biasing randomized statistics
US20050226503A1 (en) * 2004-04-07 2005-10-13 Bailey James R Scanned image content analysis
US7545988B2 (en) * 2004-08-09 2009-06-09 George William Meeker Image blocking artifact reduction via transform pair
US7428342B2 (en) * 2004-12-17 2008-09-23 Microsoft Corporation Reversible overlap operator for efficient lossless data compression
US7471850B2 (en) * 2004-12-17 2008-12-30 Microsoft Corporation Reversible transform for lossy and lossless 2-D data compression
US7305139B2 (en) * 2004-12-17 2007-12-04 Microsoft Corporation Reversible 2-dimensional pre-/post-filtering for lapped biorthogonal transform
JP2006277903A (ja) * 2005-03-30 2006-10-12 Hitachi Global Storage Technologies Netherlands Bv 符号化装置、及び復号装置
US8036274B2 (en) * 2005-08-12 2011-10-11 Microsoft Corporation SIMD lapped transform-based digital media encoding/decoding
JP4868599B2 (ja) * 2007-10-18 2012-02-01 株式会社メガチップス 周波数変換器、階層符号器、および、階層復号器
US8369638B2 (en) 2008-05-27 2013-02-05 Microsoft Corporation Reducing DC leakage in HD photo transform
US8447591B2 (en) * 2008-05-30 2013-05-21 Microsoft Corporation Factorization of overlapping tranforms into two block transforms
US8275209B2 (en) * 2008-10-10 2012-09-25 Microsoft Corporation Reduced DC gain mismatch and DC leakage in overlap transform processing
US8428959B2 (en) * 2010-01-29 2013-04-23 Polycom, Inc. Audio packet loss concealment by transform interpolation
US9525884B2 (en) * 2010-11-02 2016-12-20 Hfi Innovation Inc. Method and apparatus of slice boundary filtering for high efficiency video coding
WO2015078420A1 (en) * 2013-11-29 2015-06-04 Mediatek Inc. Methods and apparatus for intra picture block copy in video compression
US10110926B2 (en) 2015-10-15 2018-10-23 Cisco Technology, Inc. Efficient loop filter for video codec
CN107945101B (zh) 2016-10-13 2021-01-29 华为技术有限公司 图像处理方法和装置
CN112543345B (zh) * 2020-12-02 2023-01-06 深圳创维新世界科技有限公司 图像处理方法、发送端、接收端以及计算机可读存储介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4261048A (en) 1975-12-25 1981-04-07 Citizen Watch Company Limited Analog quartz timepiece
US4224678A (en) * 1976-04-05 1980-09-23 Northrop Corporation Method and apparatus for implementing a processor based on the rationalized Haar transform for the purpose of real time compression of video data
US4027257A (en) * 1976-06-01 1977-05-31 Xerox Corporation Frequency domain automatic equalizer having logic circuitry
US4205341A (en) * 1978-01-24 1980-05-27 Nippon Telegraph And Telephone Public Corporation Picture signal coding apparatus
US4394774A (en) * 1978-12-15 1983-07-19 Compression Labs, Inc. Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback
US4302775A (en) * 1978-12-15 1981-11-24 Compression Labs, Inc. Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback
US4245248A (en) * 1979-04-04 1981-01-13 Bell Telephone Laboratories, Incorporated Motion estimation and encoding of video signals in the transform domain
US4261018A (en) * 1979-06-18 1981-04-07 Bell Telephone Laboratories, Incorporated Progressive image transmission
US4261043A (en) * 1979-08-24 1981-04-07 Northrop Corporation Coefficient extrapolator for the Haar, Walsh, and Hadamard domains
US4288858A (en) * 1979-10-01 1981-09-08 General Electric Company Inverse two-dimensional transform processor
US4281344A (en) * 1980-05-02 1981-07-28 Bell Telephone Laboratories, Incorporated Video interframe transform coding technique
US4447886A (en) * 1981-07-31 1984-05-08 Meeker G William Triangle and pyramid signal transforms and apparatus
US4602286A (en) * 1982-01-15 1986-07-22 Quantel Limited Video processing for composite images
FR2527033A1 (fr) * 1982-05-17 1983-11-18 Telediffusion Fse Systeme d'incrustation d'images en television en couleurs
US4616262A (en) * 1983-11-14 1986-10-07 Dainippon Ink And Chemicals, Incorporated Method and apparatus for forming a combined image signal

Also Published As

Publication number Publication date
WO1986007479A1 (en) 1986-12-18
EP0224583A1 (de) 1987-06-10
JP2651908B2 (ja) 1997-09-10
DE3684996D1 (de) 1992-05-27
EP0224583B1 (de) 1992-04-22
EP0224583A4 (de) 1988-09-07
CA1255391A (en) 1989-06-06
US4754492A (en) 1988-06-28
JPS63500070A (ja) 1988-01-07

Similar Documents

Publication Publication Date Title
ATE75333T1 (de) Vorrichtung zur anpassung eines digitalsignalverarbeitungssystems fuer blockverarbeitung mit minimalen blockartefakten.
DE3878504D1 (de) Vorrichtung zur verarbeitung eines videosignals.
GB2290668A (en) Signal processing system
GB2092416B (en) Method and equipment for processing gray scale facsimile signal
EP0401854A3 (de) Einrichtung zur orthogonalen Transformationskodierung
DE69021982D1 (de) Vorrichtung und Verfahren zur Verwandlung digitaler Videosignale.
DE69024045D1 (de) Kodierungsverfahren und Vorrichtung zur Pipeline- und Parallelverarbeitung.
DE68920102D1 (de) Gerät zur Verarbeitung eines echographischen Signals.
DE3280243D1 (de) Vorrichtung zur maehgutaufbereitung.
DE69009091D1 (de) Verfahren und Vorrichtung zur Signalverarbeitung.
ATE142061T1 (de) Gerät zur kodierung digitaler signale
DE3750919D1 (de) Verfahren und Vorrichtung zur Verarbeitung eines Bildes gemäss eines Korrekturniveaus.
DE3585454D1 (de) Geraet zur verarbeitung eines bildsignals mit bandkompression.
DE69315285D1 (de) Vorrichtung zum Verarbeiten eines Bildsignals
FR2469075B1 (fr) Appareil a filtre numerique pour traiter un signal numerique, notamment de television, et procede de mise en oeuvre de cette appareil
DE3786412D1 (de) Verfahren und vorrichtung zur digitalen signalkodierung durch quantisierung.
DE3768562D1 (de) Verfahren und vorrichtung zur dimensionsmessung eines objektes.
DE3668199D1 (de) Verfahren und vorrichtung zur erzeugung eines schlamms fuer unterwasserverarbeitung.
DE68912859D1 (de) Verfahren und Vorrichtung zur Ausführung einer nichtlinearen Operation an einem digitalen Signal.
DE69021196D1 (de) Verfahren und vorrichtung zur kompandierung eines signals.
DE68923473D1 (de) Verfahren und Vorrichtung zur Beseitigung von Verzerrungen zwischen Blöcken wegen komprimierten Bilddaten.
DE69207276D1 (de) Vorrichtung zur Feststellung eines Kurzschlusses zur Verwendung in einem bi-polaren d.c.-Übertragungssystem
DE3582105D1 (de) Verfahren und vorrichtung fuer die untertitelung und/oder trickfilme mittels eines schirmkopierers und einer datenverarbeitungsanlage.
DE69001091D1 (de) Verfahren und einrichtung zur korrektur eines hydrophonsignals einer antenne und sonar-antenne, die eine derartige einrichtung verwendet.
DE68922649D1 (de) Vorrichtung zur Verarbeitung eines Videosignals.

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties