FR2296965A1 - Compression d'une image a echelle de gris pour obtenir une representation comportant moins d'un bit par element d'image - Google Patents

Compression d'une image a echelle de gris pour obtenir une representation comportant moins d'un bit par element d'image

Info

Publication number
FR2296965A1
FR2296965A1 FR7534733A FR7534733A FR2296965A1 FR 2296965 A1 FR2296965 A1 FR 2296965A1 FR 7534733 A FR7534733 A FR 7534733A FR 7534733 A FR7534733 A FR 7534733A FR 2296965 A1 FR2296965 A1 FR 2296965A1
Authority
FR
France
Prior art keywords
compression
representation
less
gray scale
bit per
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
FR7534733A
Other languages
English (en)
Other versions
FR2296965B1 (fr
Inventor
Thomas H Ii Morrin
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2296965A1 publication Critical patent/FR2296965A1/fr
Application granted granted Critical
Publication of FR2296965B1 publication Critical patent/FR2296965B1/fr
Granted 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/93—Run-length coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR7534733A 1974-12-30 1975-11-07 Compression d'une image a echelle de gris pour obtenir une representation comportant moins d'un bit par element d'image Granted FR2296965A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/537,164 US4005411A (en) 1974-12-30 1974-12-30 Compression of gray scale imagery to less than one bit per picture element

Publications (2)

Publication Number Publication Date
FR2296965A1 true FR2296965A1 (fr) 1976-07-30
FR2296965B1 FR2296965B1 (fr) 1978-05-26

Family

ID=24141484

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534733A Granted FR2296965A1 (fr) 1974-12-30 1975-11-07 Compression d'une image a echelle de gris pour obtenir une representation comportant moins d'un bit par element d'image

Country Status (7)

Country Link
US (1) US4005411A (fr)
JP (1) JPS5739706B2 (fr)
CA (1) CA1064618A (fr)
DE (1) DE2550928C2 (fr)
FR (1) FR2296965A1 (fr)
GB (1) GB1497587A (fr)
IT (1) IT1044745B (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379956A1 (fr) * 1977-02-08 1978-09-01 Mitsubishi Electric Corp Systeme de communications a codage de signaux fac-similes
US4144547A (en) * 1977-04-04 1979-03-13 Xerox Corporation Apparatus and method for encoding halftone and line copy data
US4125861A (en) * 1977-08-18 1978-11-14 Bell Telephone Laboratories, Incorporated Video signal encoding
US4213154A (en) * 1978-08-03 1980-07-15 Mitsubishi Denki Kabushiki Kaisha Facsimile communication system
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
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
DE2932121C2 (de) * 1979-08-08 1982-09-30 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren für adaptive δ-Modulation
US4369463A (en) * 1981-06-04 1983-01-18 International Business Machines Corporation Gray scale image data compression with code words a function of image history
US4710813A (en) * 1981-06-04 1987-12-01 Compression Labs, Inc. Low bandwidth video teleconferencing system and method
US4631521A (en) * 1984-12-31 1986-12-23 Wang Laboratories, Inc. Method and apparatus for differential run-length coding
GB8507903D0 (en) * 1985-03-26 1985-05-01 Tomlinson M Noise-reduction signal processing arrangement
IL77840A (en) * 1986-02-10 1989-05-15 Elscint Ltd Data compression system for digital imaging
EP0238254B1 (fr) * 1986-03-20 1992-05-27 AT&T Corp. Compression de données utilisant une transformation des listes
JPS63212296A (ja) * 1987-02-27 1988-09-05 Pioneer Electronic Corp スピ−カシステム
US4905002A (en) * 1988-03-09 1990-02-27 Eastman Kodak Company Delta modulation encoder/decoder method and system
US5179711A (en) * 1989-12-26 1993-01-12 International Business Machines Corporation Minimum identical consecutive run length data units compression method by searching consecutive data pair comparison results stored in a string
US6865291B1 (en) * 1996-06-24 2005-03-08 Andrew Michael Zador Method apparatus and system for compressing data that wavelet decomposes by color plane and then divides by magnitude range non-dc terms between a scalar quantizer and a vector quantizer
US7321623B2 (en) * 2002-10-01 2008-01-22 Avocent Corporation Video compression system
US20060126718A1 (en) * 2002-10-01 2006-06-15 Avocent Corporation Video compression encoder
US7289658B2 (en) * 2003-06-24 2007-10-30 International Business Machines Corporation Removal of relatively unimportant shapes from a set of shapes
US9560371B2 (en) * 2003-07-30 2017-01-31 Avocent Corporation Video compression system
US7684629B2 (en) * 2004-01-26 2010-03-23 Fujifilm Corporation Data compression apparatus, and data compression program storage medium
US7006700B2 (en) * 2004-06-25 2006-02-28 Avocent Corporation Digital video compression command priority
US7457461B2 (en) * 2004-06-25 2008-11-25 Avocent Corporation Video compression noise immunity
US8718147B2 (en) * 2006-02-17 2014-05-06 Avocent Huntsville Corporation Video compression algorithm
US7555570B2 (en) 2006-02-17 2009-06-30 Avocent Huntsville Corporation Device and method for configuring a target device
US7782961B2 (en) * 2006-04-28 2010-08-24 Avocent Corporation DVC delta commands

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170667A5 (fr) * 1972-01-05 1973-09-14 Ibm
DE2304344A1 (de) * 1973-01-30 1974-08-15 Licentia Gmbh Verfahren zur kompression des nachrichtenflusses bei digitaler bilduebertragung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489885A (fr) * 1966-06-17 1967-07-28 Alcatel Sa Procédé de réduction de la bande passante dans un système de transmission par modulation en delta
US3679821A (en) * 1970-04-30 1972-07-25 Bell Telephone Labor Inc Transform coding of image difference signals
US3689840A (en) * 1971-04-29 1972-09-05 Bell Telephone Labor Inc Coding of sign information in dpcm systems
US3720786A (en) * 1971-05-14 1973-03-13 Bell Telephone Labor Inc Onal replenishment video encoder with predictive updating19730313
US3769451A (en) * 1972-08-16 1973-10-30 Bell Telephone Labor Inc Video encoder utilizing columns of samples encoded by prediction and interpolation
DE2326644C3 (de) * 1973-05-25 1981-10-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur Datenkompression von Nachrichtensignalen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170667A5 (fr) * 1972-01-05 1973-09-14 Ibm
DE2304344A1 (de) * 1973-01-30 1974-08-15 Licentia Gmbh Verfahren zur kompression des nachrichtenflusses bei digitaler bilduebertragung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE "ELECTRONICS", VOLUME 47, NO. 4, 21 FEVRIER 1974, PAGE 10E, ARTICLE "TECHNIQUE PROMISES PHOTOS BY FACSIMILE" *

Also Published As

Publication number Publication date
DE2550928A1 (de) 1976-07-08
CA1064618A (fr) 1979-10-16
IT1044745B (it) 1980-04-21
JPS5190219A (fr) 1976-08-07
FR2296965B1 (fr) 1978-05-26
US4005411A (en) 1977-01-25
GB1497587A (en) 1978-01-12
JPS5739706B2 (fr) 1982-08-23
DE2550928C2 (de) 1983-04-07

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Legal Events

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