GB9822094D0 - Improvements in data compression - Google Patents

Improvements in data compression

Info

Publication number
GB9822094D0
GB9822094D0 GBGB9822094.0A GB9822094A GB9822094D0 GB 9822094 D0 GB9822094 D0 GB 9822094D0 GB 9822094 A GB9822094 A GB 9822094A GB 9822094 D0 GB9822094 D0 GB 9822094D0
Authority
GB
United Kingdom
Prior art keywords
derived
data compression
globally
necessity
estimate
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.)
Ceased
Application number
GBGB9822094.0A
Other languages
English (en)
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.)
Snell Advanced Media Ltd
Original Assignee
Snell and Wilcox 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 Snell and Wilcox Ltd filed Critical Snell and Wilcox Ltd
Priority to GBGB9822094.0A priority Critical patent/GB9822094D0/en
Publication of GB9822094D0 publication Critical patent/GB9822094D0/en
Priority to EP99949199A priority patent/EP1119978B1/en
Priority to DE69925296T priority patent/DE69925296T2/de
Priority to AT99949199T priority patent/ATE295658T1/de
Priority to US09/806,968 priority patent/US6898321B1/en
Priority to CA002345784A priority patent/CA2345784A1/en
Priority to PCT/GB1999/003356 priority patent/WO2000022834A2/en
Priority to AU62177/99A priority patent/AU767832B2/en
Priority to JP2000576629A priority patent/JP2002528008A/ja
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
    • 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
    • H04N19/10—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
    • 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
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • 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
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • 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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
GBGB9822094.0A 1998-10-09 1998-10-09 Improvements in data compression Ceased GB9822094D0 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GBGB9822094.0A GB9822094D0 (en) 1998-10-09 1998-10-09 Improvements in data compression
EP99949199A EP1119978B1 (en) 1998-10-09 1999-10-11 Method for estimating the quality of a decoded picture
DE69925296T DE69925296T2 (de) 1998-10-09 1999-10-11 Verfahren zur estimation der bildqualität eines dekodierten bildes
AT99949199T ATE295658T1 (de) 1998-10-09 1999-10-11 Verfahren zur estimation der bildqualität eines dekodierten bildes
US09/806,968 US6898321B1 (en) 1998-10-09 1999-10-11 Method and apparatus for blocking effect reduction
CA002345784A CA2345784A1 (en) 1998-10-09 1999-10-11 Method and apparatus for blocking effect reduction
PCT/GB1999/003356 WO2000022834A2 (en) 1998-10-09 1999-10-11 Method and apparatus for blocking effect reduction
AU62177/99A AU767832B2 (en) 1998-10-09 1999-10-11 Method and apparatus for blocking effect reduction
JP2000576629A JP2002528008A (ja) 1998-10-09 1999-10-11 ブロック効果を減少させるための方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9822094.0A GB9822094D0 (en) 1998-10-09 1998-10-09 Improvements in data compression

Publications (1)

Publication Number Publication Date
GB9822094D0 true GB9822094D0 (en) 1998-12-02

Family

ID=10840318

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB9822094.0A Ceased GB9822094D0 (en) 1998-10-09 1998-10-09 Improvements in data compression

Country Status (9)

Country Link
US (1) US6898321B1 (enExample)
EP (1) EP1119978B1 (enExample)
JP (1) JP2002528008A (enExample)
AT (1) ATE295658T1 (enExample)
AU (1) AU767832B2 (enExample)
CA (1) CA2345784A1 (enExample)
DE (1) DE69925296T2 (enExample)
GB (1) GB9822094D0 (enExample)
WO (1) WO2000022834A2 (enExample)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6404828B2 (en) * 1997-03-12 2002-06-11 Interdigital Technology Corporation Multichannel decoder
US20060262832A1 (en) * 1997-03-12 2006-11-23 Interdigital Technology Corporation Convolutionally encoding and decoding multiple data streams
US7107081B1 (en) 2001-10-18 2006-09-12 Iwao Fujisaki Communication device
US7127271B1 (en) 2001-10-18 2006-10-24 Iwao Fujisaki Communication device
US7466992B1 (en) 2001-10-18 2008-12-16 Iwao Fujisaki Communication device
US7092448B2 (en) * 2002-05-24 2006-08-15 Koninklijke Philips Electronics N.V. Method and system for estimating no-reference objective quality of video data
US7543326B2 (en) * 2002-06-10 2009-06-02 Microsoft Corporation Dynamic rate control
US20030235250A1 (en) 2002-06-24 2003-12-25 Ankur Varma Video deblocking
GB0228556D0 (en) * 2002-12-06 2003-01-15 British Telecomm Video quality measurement
US8229512B1 (en) 2003-02-08 2012-07-24 Iwao Fujisaki Communication device
US8241128B1 (en) 2003-04-03 2012-08-14 Iwao Fujisaki Communication device
US8090402B1 (en) 2003-09-26 2012-01-03 Iwao Fujisaki Communication device
US7917167B1 (en) 2003-11-22 2011-03-29 Iwao Fujisaki Communication device
US20070139564A1 (en) * 2004-02-27 2007-06-21 Koninklijke Philips Electronics N.V. System and method for global indication of mpeg impairments in compressed digital video
US8041348B1 (en) 2004-03-23 2011-10-18 Iwao Fujisaki Communication device
US8208954B1 (en) 2005-04-08 2012-06-26 Iwao Fujisaki Communication device
KR100646233B1 (ko) 2005-05-30 2006-11-23 연세대학교 산학협력단 코덱 보조정보를 이용한 동영상 화질 평가 시스템 및 방법
EP1729529A1 (en) * 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Video signal loss detection
DE102005025629A1 (de) * 2005-06-03 2007-03-22 Micronas Gmbh Bildverarbeitungsverfahren zur Reduzierung von Blocking-Artefakten
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
US8848057B2 (en) 2005-12-05 2014-09-30 Samsung Electronics Co., Ltd. Home security applications for television with digital video cameras
US7873224B2 (en) 2006-03-01 2011-01-18 Qualcomm Incorporated Enhanced image/video quality through artifact evaluation
US7711199B2 (en) * 2006-03-16 2010-05-04 Samsung Electronics Co., Ltd. Method for estimating quantization factor of compressed digital image
US20070280552A1 (en) * 2006-06-06 2007-12-06 Samsung Electronics Co., Ltd. Method and device for measuring MPEG noise strength of compressed digital image
US7890089B1 (en) 2007-05-03 2011-02-15 Iwao Fujisaki Communication device
US8559983B1 (en) 2007-05-03 2013-10-15 Iwao Fujisaki Communication device
DE102007037857A1 (de) * 2007-08-10 2009-02-12 Micronas Gmbh Verfahren zur Reduktion von Bildartefakten
US8676273B1 (en) 2007-08-24 2014-03-18 Iwao Fujisaki Communication device
US8639214B1 (en) 2007-10-26 2014-01-28 Iwao Fujisaki Communication device
US8472935B1 (en) 2007-10-29 2013-06-25 Iwao Fujisaki Communication device
US8744720B1 (en) 2007-12-27 2014-06-03 Iwao Fujisaki Inter-vehicle middle point maintaining implementer
US8543157B1 (en) 2008-05-09 2013-09-24 Iwao Fujisaki Communication device which notifies its pin-point location or geographic area in accordance with user selection
US8340726B1 (en) 2008-06-30 2012-12-25 Iwao Fujisaki Communication device
US8452307B1 (en) 2008-07-02 2013-05-28 Iwao Fujisaki Communication device
WO2010032334A1 (ja) * 2008-09-22 2010-03-25 富士通株式会社 品質指標値算出方法、情報処理装置、動画配信システムおよび品質指標値算出プログラム
US8718145B1 (en) * 2009-08-24 2014-05-06 Google Inc. Relative quality score for video transcoding
KR101416265B1 (ko) * 2013-02-28 2014-07-09 연세대학교 산학협력단 하이브리드 방식 기반 영상의 화질을 평가하기 위한 장치 및 그 방법

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086488A (en) 1989-08-19 1992-02-04 Mitsubishi Denki Kabushiki Kaisha Transform coding apparatus
US5142380A (en) 1989-10-23 1992-08-25 Ricoh Company, Ltd. Image data processing apparatus
JPH0767176B2 (ja) * 1990-11-28 1995-07-19 松下電器産業株式会社 符号化雑音除去フィルタ
US5249053A (en) 1991-02-05 1993-09-28 Dycam Inc. Filmless digital camera with selective image compression
DE4111884A1 (de) 1991-04-09 1992-10-15 Klippel Wolfgang Schaltungsanordnung zur korrektur des linearen und nichtlinearen uebertragungsverhaltens elektroakustischer wandler
TW256010B (enExample) 1991-04-18 1995-09-01 Ampex
FR2690299B1 (fr) * 1992-04-17 1994-06-17 Telecommunications Sa Procede et dispositif de filtrage spatial d'images numeriques decodees par transformation par bloc.
US5636295A (en) * 1992-10-07 1997-06-03 Daewoo Electronics Co., Ltd. Apparatus for reducing quantization noise in image signals
JP3302761B2 (ja) * 1993-02-24 2002-07-15 株式会社リコー 本原稿読み取り装置
US5748245A (en) 1993-03-29 1998-05-05 Canon Kabushiki Kaisha Encoding apparatus for encoding input information data while controlling a code quantity of encoded information data
US5479527A (en) 1993-12-08 1995-12-26 Industrial Technology Research Inst. Variable length coding system
KR0183688B1 (ko) 1994-01-12 1999-05-01 김광호 영상부호화방법 및 장치
US5512956A (en) 1994-02-04 1996-04-30 At&T Corp. Adaptive spatial-temporal postprocessing for low bit-rate coded image sequences
JP2673778B2 (ja) * 1994-02-22 1997-11-05 国際電信電話株式会社 動画像の復号化における雑音低減装置
WO1995035628A1 (en) 1994-06-17 1995-12-28 Snell & Wilcox Limited Video compression
US5671298A (en) 1994-08-30 1997-09-23 Texas Instruments Incorporated Image scaling using cubic filters
JP3058028B2 (ja) 1994-10-31 2000-07-04 三菱電機株式会社 画像符号化データ再符号化装置
US5802218A (en) 1994-11-04 1998-09-01 Motorola, Inc. Method, post-processing filter, and video compression system for suppressing mosquito and blocking atrifacts
US5754699A (en) 1994-11-24 1998-05-19 Victor Company Of Japan, Ltd. Method of reducing mosquito noise generated during decoding process of image data and device for decoding image data using the same
JP3013876B2 (ja) 1995-01-31 2000-02-28 日本ビクター株式会社 変換符号化装置
US6005952A (en) 1995-04-05 1999-12-21 Klippel; Wolfgang Active attenuation of nonlinear sound
KR0160690B1 (ko) 1995-04-29 1999-01-15 김광호 영상신호 부호화/복호화장치에 있어서 블럭킹 효과 제거회로
US5812197A (en) 1995-05-08 1998-09-22 Thomson Consumer Electronics, Inc. System using data correlation for predictive encoding of video image data subject to luminance gradients and motion
KR100242636B1 (ko) * 1996-03-23 2000-02-01 윤종용 블록화효과 및 링잉노이즈 감소를 위한 신호적응후처리시스템
US5933542A (en) 1996-04-24 1999-08-03 Sony Corporation Method and apparatus for blocking effect reduction in images by post-processing in the spatial domain
US5991456A (en) 1996-05-29 1999-11-23 Science And Technology Corporation Method of improving a digital image
DE59709799D1 (de) * 1996-10-01 2003-05-15 Infineon Technologies Ag Verfahren und anordnung zur vektorquantisierung und zur inversen vektorquantisierung eines digitalisierten bildes
JPH10117346A (ja) * 1996-10-11 1998-05-06 Xing:Kk 情報供給装置、情報再生装置及び情報供給再生システム
US6163573A (en) 1996-12-12 2000-12-19 Sony Corporation Equipment and method for compressing picture data
EP0960532B1 (en) * 1997-02-12 2007-01-31 MediaTek Inc. Apparatus and method for optimizing the rate control in a coding system
US5969764A (en) * 1997-02-14 1999-10-19 Mitsubishi Electric Information Technology Center America, Inc. Adaptive video coding method
US6539120B1 (en) 1997-03-12 2003-03-25 Matsushita Electric Industrial Co., Ltd. MPEG decoder providing multiple standard output signals
US6023296A (en) * 1997-07-10 2000-02-08 Sarnoff Corporation Apparatus and method for object based rate control in a coding system
US6278735B1 (en) 1998-03-19 2001-08-21 International Business Machines Corporation Real-time single pass variable bit rate control strategy and encoder
US6269120B1 (en) 1998-03-23 2001-07-31 International Business Machines Corporation Method of precise buffer management for MPEG video splicing
GB9807201D0 (en) 1998-04-03 1998-06-03 Nds Ltd Filtering video signals containing chrominance information
US6151362A (en) 1998-10-30 2000-11-21 Motorola, Inc. Joint rate control for stereoscopic video coding
US6570922B1 (en) 1998-11-24 2003-05-27 General Instrument Corporation Rate control for an MPEG transcoder without a priori knowledge of picture type
US6810083B2 (en) * 2001-11-16 2004-10-26 Koninklijke Philips Electronics N.V. Method and system for estimating objective quality of compressed video data

Also Published As

Publication number Publication date
AU767832B2 (en) 2003-11-27
ATE295658T1 (de) 2005-05-15
AU6217799A (en) 2000-05-01
WO2000022834A3 (en) 2000-09-08
DE69925296T2 (de) 2006-02-23
EP1119978B1 (en) 2005-05-11
EP1119978A2 (en) 2001-08-01
DE69925296D1 (de) 2005-06-16
US6898321B1 (en) 2005-05-24
WO2000022834A2 (en) 2000-04-20
JP2002528008A (ja) 2002-08-27
CA2345784A1 (en) 2000-04-20

Similar Documents

Publication Publication Date Title
GB9822094D0 (en) Improvements in data compression
EP0711079A3 (en) Method and apparatus for scaling a compressed video bitstream
CA2374523A1 (en) A method and associated device for filtering digital video images
WO2003042922A3 (en) Estimating objective quality of compressed video data
EP0721286A3 (en) Video signal decoding apparatus with artifact reduction
AU6492196A (en) Wavelet based data compression
CA2160300A1 (en) Method and apparatus for partially recompressing digital signals
WO2004038921A3 (en) Method and system for supercompression of compressed digital video
MY114931A (en) Image element processor for a memory management system
AU2002215282A1 (en) Enhancing the performance of coding systems that use high frequency reconstruction methods
CA2156022A1 (en) Method and apparatus for modifying the quantization step of each macro-block in a video segment
TW200643825A (en) Filtering strength determination method, moving picture coding method and moving picture decoding method
EP1047271A3 (en) Compression and decompression of reference frames in a video decoder
EP1091592A3 (en) Video signal encoding apparatus
EP0874525A3 (en) Motion image coding apparatus adaptively controlling reference frame interval
JPH10229546A5 (enExample)
WO1999007158A3 (en) Variable bitrate video coding method and corresponding video coder
WO2006110890A3 (en) Macro-block based mixed resolution video compression system
EP0979010A3 (en) Moving picture bitstream conversion apparatus and method
CA2178943A1 (en) Method and Device for Determining Bit Allocation in a Video Compression System
MY130419A (en) Image processing apparatus, method , and recording medium for controlling image quality
EP0914006A3 (en) System for perceptual compression and robust bit-rate control
EP0986270A3 (en) Picture quality measurement using blockiness
WO2003043343A3 (en) Method and system for detecting intra-coded pictures and for extracting intra dct precision and macroblock-level coding parameter s from uncompressed digital video
CA2181424A1 (en) Code Amount Controlling Method for Coded Pictures

Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)