CA2028947A1 - Appareil de codage d'images - Google Patents

Appareil de codage d'images

Info

Publication number
CA2028947A1
CA2028947A1 CA2028947A CA2028947A CA2028947A1 CA 2028947 A1 CA2028947 A1 CA 2028947A1 CA 2028947 A CA2028947 A CA 2028947A CA 2028947 A CA2028947 A CA 2028947A CA 2028947 A1 CA2028947 A1 CA 2028947A1
Authority
CA
Canada
Prior art keywords
frame
normalized value
control
bits
quantization characteristics
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.)
Granted
Application number
CA2028947A
Other languages
English (en)
Other versions
CA2028947C (fr
Inventor
Tokumichi Murakami
Kazuhiro Matsuzaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CA2028947A1 publication Critical patent/CA2028947A1/fr
Application granted granted Critical
Publication of CA2028947C publication Critical patent/CA2028947C/fr
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
    • H04N19/50—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
    • H04N19/10—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
    • H04N19/102—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of 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
    • H04N19/50—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
    • 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
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Studio Devices (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA002028947A 1989-11-06 1990-10-30 Appareil de codage d'images Expired - Fee Related CA2028947C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1288180A JPH0722396B2 (ja) 1989-11-06 1989-11-06 画像符号化装置
JP288180/89 1989-11-06

Publications (2)

Publication Number Publication Date
CA2028947A1 true CA2028947A1 (fr) 1991-05-07
CA2028947C CA2028947C (fr) 1994-04-12

Family

ID=17726847

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002028947A Expired - Fee Related CA2028947C (fr) 1989-11-06 1990-10-30 Appareil de codage d'images

Country Status (9)

Country Link
US (1) US5202770A (fr)
EP (1) EP0427108B1 (fr)
JP (1) JPH0722396B2 (fr)
KR (1) KR930011843B1 (fr)
AU (1) AU627629B2 (fr)
CA (1) CA2028947C (fr)
DE (1) DE69017838T2 (fr)
FI (1) FI97591C (fr)
NO (1) NO177519C (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2514114B2 (ja) * 1991-01-31 1996-07-10 株式会社グラフィックス・コミュニケーション・テクノロジーズ 動画像符号化装置
JP2514115B2 (ja) * 1991-02-15 1996-07-10 株式会社グラフィックス・コミュニケーション・テクノロジーズ 画像信号符号化装置
US6167539A (en) * 1991-11-14 2000-12-26 Canon Kabushiki Kaisha Transmitting apparatus with code formation based on detected transmission channel data
SE468736B (sv) * 1991-11-15 1993-03-08 Televerket Foerfarande och apparat foer bildkodning med oeverhoppning av bilder och/eller komponenter
US6222943B1 (en) * 1992-07-30 2001-04-24 Canon Kabushiki Kaisha Image reading, processing and recording with quick data compression
US5592225A (en) * 1993-09-30 1997-01-07 Matsushita Electric Industrial Co., Ltd. Device and method for controlling coding
JP3224465B2 (ja) * 1993-12-22 2001-10-29 シャープ株式会社 画像符号化装置
JPH07322252A (ja) * 1994-05-23 1995-12-08 Canon Inc 画像符号化装置
EP0750271A3 (fr) 1995-06-19 1997-06-11 Canon Kk Procédé et appareil de traitement d'images
US7082163B2 (en) * 2000-11-20 2006-07-25 Matsushita Electric Industrial Co., Ltd. Picture coding method, picture coding apparatus and image relaying apparatus
US6904984B1 (en) * 2003-06-20 2005-06-14 Rock Bit L.P. Stepped polycrystalline diamond compact insert
CN107968948A (zh) * 2016-10-19 2018-04-27 北京新唐思创教育科技有限公司 在线视频播放方法及系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS56136093A (en) * 1980-03-26 1981-10-23 Fuji Photo Film Co Ltd Adaptive quantizer
JPS5761387A (en) * 1980-09-30 1982-04-13 Nippon Telegr & Teleph Corp <Ntt> Encoder between frames
JPS5814688A (ja) * 1981-07-20 1983-01-27 Nippon Telegr & Teleph Corp <Ntt> フレ−ム内予測符号化装置
JPS58194456A (ja) * 1982-05-10 1983-11-12 Ricoh Co Ltd 順次同報装置
JPS60180388A (ja) * 1984-02-28 1985-09-14 Kokusai Denshin Denwa Co Ltd <Kdd> 符号化された画像信号の再量子化方法
CA1289656C (fr) * 1985-02-28 1991-09-24 Tokumichi Murakami Appareil adaptatif de codage inter-image a quantification vectorielle
JPH065888B2 (ja) * 1986-02-14 1994-01-19 富士写真フイルム株式会社 画像デ−タ量子化方法および装置
JPS62276927A (ja) * 1986-05-26 1987-12-01 Mitsubishi Electric Corp 差分パルス変調方式
KR910000707B1 (ko) * 1986-05-26 1991-01-31 미쓰비시덴기 가부시기가이샤 화상 부호화 전송방법 및 장치
DE3710119A1 (de) * 1987-03-27 1988-10-13 Philips Patentverwaltung Quellcodierer fuer videobilder
US4785356A (en) * 1987-04-24 1988-11-15 International Business Machines Corporation Apparatus and method of attenuating distortion introduced by a predictive coding image compressor
JPH1018382A (ja) * 1996-06-28 1998-01-20 Hokusatsu Home:Kk 排水管用臭気止め装置

Also Published As

Publication number Publication date
FI97591C (fi) 1997-01-10
US5202770A (en) 1993-04-13
JPH03149984A (ja) 1991-06-26
NO904753D0 (no) 1990-11-01
AU627629B2 (en) 1992-08-27
EP0427108A2 (fr) 1991-05-15
EP0427108B1 (fr) 1995-03-15
FI97591B (fi) 1996-09-30
NO177519B (no) 1995-06-19
DE69017838D1 (de) 1995-04-20
CA2028947C (fr) 1994-04-12
AU6562690A (en) 1991-05-09
NO177519C (no) 1995-09-27
FI905469A0 (fi) 1990-11-05
NO904753L (no) 1991-05-07
JPH0722396B2 (ja) 1995-03-08
EP0427108A3 (en) 1993-03-03
KR910011051A (ko) 1991-06-29
DE69017838T2 (de) 1995-12-14
KR930011843B1 (ko) 1993-12-21

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Legal Events

Date Code Title Description
EEER Examination request
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