DE3884604D1 - System zur produktion von pixelbilddaten aus ccitt-kodierten pixeldaten. - Google Patents

System zur produktion von pixelbilddaten aus ccitt-kodierten pixeldaten.

Info

Publication number
DE3884604D1
DE3884604D1 DE88908038T DE3884604T DE3884604D1 DE 3884604 D1 DE3884604 D1 DE 3884604D1 DE 88908038 T DE88908038 T DE 88908038T DE 3884604 T DE3884604 T DE 3884604T DE 3884604 D1 DE3884604 D1 DE 3884604D1
Authority
DE
Germany
Prior art keywords
pixel
data
ccitt
production
image data
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 - Fee Related
Application number
DE88908038T
Other languages
English (en)
Other versions
DE3884604T2 (de
Inventor
Gregory Wallace
Richard Lawrence
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.)
Digital Equipment Corp
Original Assignee
Digital Equipment 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 Digital Equipment Corp filed Critical Digital Equipment Corp
Publication of DE3884604D1 publication Critical patent/DE3884604D1/de
Application granted granted Critical
Publication of DE3884604T2 publication Critical patent/DE3884604T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
    • H04N1/4175—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding involving the encoding of tone transitions with respect to tone transitions in a reference line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE88908038T 1987-08-17 1988-08-17 System zur produktion von pixelbilddaten aus ccitt-kodierten pixeldaten. Expired - Fee Related DE3884604T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8703087A 1987-08-17 1987-08-17
PCT/US1988/002821 WO1989001727A1 (en) 1987-08-17 1988-08-17 System for producing pixel image data from ccitt encoded pixel data

Publications (2)

Publication Number Publication Date
DE3884604D1 true DE3884604D1 (de) 1993-11-04
DE3884604T2 DE3884604T2 (de) 1994-03-17

Family

ID=22202678

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88908038T Expired - Fee Related DE3884604T2 (de) 1987-08-17 1988-08-17 System zur produktion von pixelbilddaten aus ccitt-kodierten pixeldaten.

Country Status (4)

Country Link
EP (1) EP0341272B1 (de)
JP (1) JPH02501699A (de)
DE (1) DE3884604T2 (de)
WO (1) WO1989001727A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205255B1 (en) * 1998-01-06 2001-03-20 Intel Corporation Method and apparatus for run-length encoding of multi-colored images
US6404927B1 (en) * 1999-03-15 2002-06-11 Exar Corporation Control point generation and data packing for variable length image compression

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258406A (en) * 1975-11-10 1977-05-13 Kokusai Denshin Denwa Co Ltd Facsimile signal change point address coding system
JPS5412515A (en) * 1977-06-29 1979-01-30 Ricoh Co Ltd Data compression system
IT1155650B (it) * 1982-03-19 1987-01-28 Olivetti & Co Spa Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini
JPS59126368A (ja) * 1983-01-10 1984-07-20 Hitachi Ltd 符号化復号化装置
JPS6019360A (ja) * 1983-07-12 1985-01-31 Nec Corp フアクシミリの復号化回路
US4562484A (en) * 1983-08-19 1985-12-31 Advanced Micro Devices, Inc. Method and device for decoding two-dimensional facsimile signals
DE3483521D1 (de) * 1984-01-16 1990-12-06 Ibm Verfahren zum kodieren und dekodieren eines digitalen bildes.

Also Published As

Publication number Publication date
WO1989001727A1 (en) 1989-02-23
EP0341272A1 (de) 1989-11-15
DE3884604T2 (de) 1994-03-17
JPH02501699A (ja) 1990-06-07
EP0341272B1 (de) 1993-09-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: GRUENECKER, KINKELDEY, STOCKMAIR & SCHWANHAEUSSER, 80538 MUENCHEN

8339 Ceased/non-payment of the annual fee