DE69415874D1 - Vorrichtung zur Übertragung von von einem Satelliten gesammelten Bildern - Google Patents

Vorrichtung zur Übertragung von von einem Satelliten gesammelten Bildern

Info

Publication number
DE69415874D1
DE69415874D1 DE69415874T DE69415874T DE69415874D1 DE 69415874 D1 DE69415874 D1 DE 69415874D1 DE 69415874 T DE69415874 T DE 69415874T DE 69415874 T DE69415874 T DE 69415874T DE 69415874 D1 DE69415874 D1 DE 69415874D1
Authority
DE
Germany
Prior art keywords
satellite
compression unit
images collected
images
transmitting images
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
DE69415874T
Other languages
English (en)
Other versions
DE69415874T2 (de
Inventor
Gilles Moury
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.)
Centre National dEtudes Spatiales CNES
Original Assignee
Centre National dEtudes Spatiales CNES
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 Centre National dEtudes Spatiales CNES filed Critical Centre National dEtudes Spatiales CNES
Application granted granted Critical
Publication of DE69415874D1 publication Critical patent/DE69415874D1/de
Publication of DE69415874T2 publication Critical patent/DE69415874T2/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
    • H04N19/17—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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence 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
    • 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
    • H04N19/10—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Image 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)
  • Apparatus For Radiation Diagnosis (AREA)
DE69415874T 1993-06-22 1994-06-22 Vorrichtung zur Übertragung von von einem Satelliten gesammelten Bildern Expired - Lifetime DE69415874T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9307537A FR2707070B1 (de) 1993-06-22 1993-06-22

Publications (2)

Publication Number Publication Date
DE69415874D1 true DE69415874D1 (de) 1999-02-25
DE69415874T2 DE69415874T2 (de) 1999-07-01

Family

ID=9448399

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69415874T Expired - Lifetime DE69415874T2 (de) 1993-06-22 1994-06-22 Vorrichtung zur Übertragung von von einem Satelliten gesammelten Bildern

Country Status (4)

Country Link
EP (1) EP0631443B1 (de)
AT (1) ATE175834T1 (de)
DE (1) DE69415874T2 (de)
FR (1) FR2707070B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07322252A (ja) 1994-05-23 1995-12-08 Canon Inc 画像符号化装置
US6504540B1 (en) 1995-06-19 2003-01-07 Canon Kabushiki Kaisha Method and apparatus for altering one or more attributes of one or more blocks of image data in a document
FR2779600B1 (fr) * 1998-06-08 2000-07-13 Alsthom Cge Alcatel Dispositif pour la compression et la transmission de donnees, notamment d'images numeriques, sur un canal a debit constant
JP3338781B2 (ja) * 1998-06-23 2002-10-28 エヌイーシー東芝スペースシステム株式会社 圧縮送信方法および装置、受信伸張方法および装置、データ通信方法およびシステム、情報記憶媒体
FR2791211B1 (fr) 1999-03-18 2001-10-19 Cit Alcatel Dispositif de regulation en debit ou en qualite d'un compresseur de donnees numeriques, notamment d'images

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961279A (ja) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd 画像信号の適応形量子化方式
JPS5961288A (ja) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd デイジタル画像記録装置
US4748636A (en) * 1986-04-28 1988-05-31 Nec Corporation Method and apparatus of transmitting image data in a satellite system
JPS63279686A (ja) * 1987-05-12 1988-11-16 Mitsubishi Electric Corp 可変長符号化伝送装置
US5144426A (en) * 1989-10-13 1992-09-01 Matsushita Electric Industrial Co., Ltd. Motion compensated prediction interframe coding system
EP0444918B1 (de) * 1990-02-28 1996-06-05 Victor Company Of Japan, Limited Einrichtung zur Datenkompression
JPH0418857A (ja) * 1990-04-23 1992-01-23 Ricoh Co Ltd 画像データ圧縮方式
US5038209A (en) * 1990-09-27 1991-08-06 At&T Bell Laboratories Adaptive buffer/quantizer control for transform video coders
JP3187852B2 (ja) * 1991-02-08 2001-07-16 ソニー株式会社 高能率符号化方法
JPH04297184A (ja) * 1991-03-26 1992-10-21 Toshiba Corp 画像データ圧縮装置
EP0514663A3 (en) * 1991-05-24 1993-07-14 International Business Machines Corporation An apparatus and method for motion video encoding employing an adaptive quantizer
US5231484A (en) * 1991-11-08 1993-07-27 International Business Machines Corporation Motion video compression system with adaptive bit allocation and quantization

Also Published As

Publication number Publication date
ATE175834T1 (de) 1999-01-15
DE69415874T2 (de) 1999-07-01
FR2707070A1 (de) 1994-12-30
EP0631443B1 (de) 1999-01-13
FR2707070B1 (de) 1995-09-08
EP0631443A1 (de) 1994-12-28

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Legal Events

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