DE69225859D1 - Orthogonaltransformationskodierer - Google Patents

Orthogonaltransformationskodierer

Info

Publication number
DE69225859D1
DE69225859D1 DE69225859T DE69225859T DE69225859D1 DE 69225859 D1 DE69225859 D1 DE 69225859D1 DE 69225859 T DE69225859 T DE 69225859T DE 69225859 T DE69225859 T DE 69225859T DE 69225859 D1 DE69225859 D1 DE 69225859D1
Authority
DE
Germany
Prior art keywords
orthogonal transform
transform encoder
encoder
orthogonal
transform
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 - Lifetime
Application number
DE69225859T
Other languages
English (en)
Other versions
DE69225859T2 (de
Inventor
Toyohiko Matsuda
Masakazu Nishino
Shigeru Awamoto
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 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
Priority claimed from JP25503091A external-priority patent/JP2833290B2/ja
Priority claimed from JP27516291A external-priority patent/JP2913950B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69225859D1 publication Critical patent/DE69225859D1/de
Publication of DE69225859T2 publication Critical patent/DE69225859T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N19/10—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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/176—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
    • H04N19/10—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
    • H04N19/10—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
    • H04N19/124—Quantisation
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE69225859T 1991-10-02 1992-10-01 Orthogonaltransformationskodierer Expired - Lifetime DE69225859T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25503091A JP2833290B2 (ja) 1991-10-02 1991-10-02 直交変換符号化装置
JP27516291A JP2913950B2 (ja) 1991-10-23 1991-10-23 直交変換符号化装置

Publications (2)

Publication Number Publication Date
DE69225859D1 true DE69225859D1 (de) 1998-07-16
DE69225859T2 DE69225859T2 (de) 1998-12-03

Family

ID=26541983

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225859T Expired - Lifetime DE69225859T2 (de) 1991-10-02 1992-10-01 Orthogonaltransformationskodierer

Country Status (4)

Country Link
US (1) US5369439A (de)
EP (1) EP0535963B1 (de)
KR (1) KR0137401B1 (de)
DE (1) DE69225859T2 (de)

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KR0127329B1 (ko) * 1993-08-14 1997-12-29 구자홍 디씨티기반의 인트라프레임 동영상 압축을 위한 버퍼 제어장치
US5724097A (en) * 1993-10-18 1998-03-03 Mitsubishi Denki Kabushiki Kaisha Adaptive quantization of video based on edge detection
EP0660619A1 (de) * 1993-12-22 1995-06-28 Laboratoires D'electronique Philips S.A.S. Verfahren zur variablen Längenkodierung von Bildern und Vorrichtung zur Ausführung eines solchen Verfahrens
US6456655B1 (en) * 1994-09-30 2002-09-24 Canon Kabushiki Kaisha Image encoding using activity discrimination and color detection to control quantizing characteristics
US5937098A (en) * 1995-02-06 1999-08-10 Asahi Kogaku Kogyo Kabushiki Kaisha Adaptive quantization of orthogonal transform coefficients for setting a target amount of compression
JP2789577B2 (ja) * 1995-02-07 1998-08-20 日本電気株式会社 加算オーバフロ検出回路
US5621465A (en) * 1995-04-11 1997-04-15 Matsushita Electric Industrial Co., Ltd. Color image encoder
KR100196838B1 (ko) * 1995-12-23 1999-06-15 전주범 블럭벌 상관 관계에 의한 부호화 장치
JP3681835B2 (ja) * 1995-12-27 2005-08-10 三菱電機株式会社 画像符号化装置及び画像復号化装置及び符号化・復号化システム
JPH09200762A (ja) * 1995-12-29 1997-07-31 Daewoo Electron Co Ltd 映像信号符号化方法及びその装置
US5786856A (en) * 1996-03-19 1998-07-28 International Business Machines Method for adaptive quantization by multiplication of luminance pixel blocks by a modified, frequency ordered hadamard matrix
DE69721373T2 (de) * 1996-05-14 2004-04-15 Daewoo Electronics Corp. Quantisierer für ein Videokodierungssystem
JP3116994B2 (ja) * 1996-08-29 2000-12-11 富士ゼロックス株式会社 画質予測装置および方法ならびに画質制御装置および方法
US6128339A (en) * 1997-02-13 2000-10-03 Samsung Electronics Co., Ltd. Apparatus and method for masking video data errors
US6937659B1 (en) 1997-11-14 2005-08-30 Ac Capital Management, Inc. Apparatus and method for compressing video information
JPH11164152A (ja) * 1997-11-26 1999-06-18 Ricoh Co Ltd カラー画像データ圧縮装置
US6067118A (en) * 1997-12-16 2000-05-23 Philips Electronics North America Corp. Method of frame-by-frame calculation of quantization matrices
JP2001520854A (ja) 1998-02-20 2001-10-30 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ピクチャシーケンス符号化方法及び装置
WO1999059342A1 (en) * 1998-05-11 1999-11-18 The University Of British Columbia Method and system for mpeg-2 encoding with frame partitioning
US6459731B1 (en) * 1998-08-28 2002-10-01 Lucent Technologies Inc. Technique for video communications using a coding-matched filter arrangement
US7982796B2 (en) * 2001-03-21 2011-07-19 Apple Inc. Track for improved video compression
US8223844B2 (en) * 2003-11-14 2012-07-17 Intel Corporation High frequency emphasis in decoding of encoded signals
KR20060112447A (ko) * 2005-04-27 2006-11-01 엘지.필립스 엘시디 주식회사 액정표시장치의 액정주입장치 및 이를 이용한 액정주입방법
KR100712531B1 (ko) * 2005-09-10 2007-04-27 삼성전자주식회사 Ｍｐｅｇ－２ 데이터를 ｈ．２６４ 데이터로변환부호화하는 장치 및 방법
US20110135198A1 (en) * 2009-12-08 2011-06-09 Xerox Corporation Chrominance encoding and decoding of a digital image
JP5625342B2 (ja) * 2009-12-10 2014-11-19 ソニー株式会社 画像処理方法、画像処理装置、プログラム
JP5428886B2 (ja) * 2010-01-19 2014-02-26 ソニー株式会社 情報処理装置、情報処理方法、及びそのプログラム
TWI401965B (zh) * 2010-06-04 2013-07-11 Altek Corp Image Compression Method with Variable Quantization Parameters
JP5703781B2 (ja) 2010-09-03 2015-04-22 ソニー株式会社 画像処理装置および方法
EP3668095B1 (de) * 2011-01-13 2021-07-07 Canon Kabushiki Kaisha Bildkodierungsapparat, bildkodierungsverfahren, und programm, und bilddekodierungsapparat, bilddekodierungsverfahren und programm
JP2012209673A (ja) * 2011-03-29 2012-10-25 Sony Corp 情報処理装置及び方法、画像提供システム及び画像提供方法、並びにプログラム
JP2013038768A (ja) * 2011-07-13 2013-02-21 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
GB2510814B (en) * 2013-01-31 2016-05-18 Canon Kk Luma-indexed chroma sub-sampling

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Also Published As

Publication number Publication date
US5369439A (en) 1994-11-29
EP0535963A2 (de) 1993-04-07
DE69225859T2 (de) 1998-12-03
EP0535963A3 (en) 1993-12-08
EP0535963B1 (de) 1998-06-10
KR930009420A (ko) 1993-05-22
KR0137401B1 (ko) 1998-04-27

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Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

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