CA1118091A - Codes de reste de multiple de longueur de bloc plus la longueur d'execution pour codage de longueur d'execution - Google Patents

Codes de reste de multiple de longueur de bloc plus la longueur d'execution pour codage de longueur d'execution

Info

Publication number
CA1118091A
CA1118091A CA000291838A CA291838A CA1118091A CA 1118091 A CA1118091 A CA 1118091A CA 000291838 A CA000291838 A CA 000291838A CA 291838 A CA291838 A CA 291838A CA 1118091 A CA1118091 A CA 1118091A
Authority
CA
Canada
Prior art keywords
picture elements
codes
run length
data
message
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
Application number
CA000291838A
Other languages
English (en)
Inventor
Amitabh Saran
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.)
Xerox Corp
Original Assignee
Xerox 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
Priority claimed from US05/755,313 external-priority patent/US4092665A/en
Priority claimed from US05/756,662 external-priority patent/US4092677A/en
Priority claimed from US05/756,664 external-priority patent/US4136363A/en
Priority claimed from US05/756,663 external-priority patent/US4092675A/en
Priority claimed from US05/755,309 external-priority patent/US4092676A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of CA1118091A publication Critical patent/CA1118091A/fr
Expired 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 Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA000291838A 1976-12-29 1977-11-28 Codes de reste de multiple de longueur de bloc plus la longueur d'execution pour codage de longueur d'execution Expired CA1118091A (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US755,309 1976-12-29
US05/755,313 US4092665A (en) 1976-12-29 1976-12-29 Method and means for extracting variable length data from fixed length bytes
US756,664 1976-12-29
US756,662 1976-12-29
US05/756,662 US4092677A (en) 1976-12-29 1976-12-29 Truncated run length encoding for fractionally difference modulated video signals
US05/756,664 US4136363A (en) 1976-12-29 1976-12-29 Truncated run length encoding
US05/756,663 US4092675A (en) 1976-12-29 1976-12-29 Truncated run length encoding with a modular variable length code format
US755,313 1976-12-29
US05/755,309 US4092676A (en) 1976-12-29 1976-12-29 Block length multiple plus run length residue codes for run length encoding
US756,663 1991-09-09

Publications (1)

Publication Number Publication Date
CA1118091A true CA1118091A (fr) 1982-02-09

Family

ID=27542168

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000291838A Expired CA1118091A (fr) 1976-12-29 1977-11-28 Codes de reste de multiple de longueur de bloc plus la longueur d'execution pour codage de longueur d'execution

Country Status (4)

Country Link
JP (1) JPS5384411A (fr)
CA (1) CA1118091A (fr)
DE (1) DE2758399C2 (fr)
GB (1) GB1590664A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5537003A (en) * 1978-09-07 1980-03-14 Hitachi Ltd Facsimile transmitter having redundancy suppression function
CA1211300A (fr) * 1983-03-02 1986-09-16 Thomas H. Lohr Entrainement a roues d'engrenage coniques
US4517604A (en) * 1983-04-04 1985-05-14 International Business Machines Corporation Method for reducing line width variations in bilevel video images

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869569A (en) * 1972-05-16 1975-03-04 Xerox Corp Facsimile transceiving apparatus
JPS4938510A (fr) * 1972-08-09 1974-04-10
US3830966A (en) * 1973-01-03 1974-08-20 Eg & G Inc Apparatus and method for transmitting a bandwidth compressed digital signal representation of a visible image
JPS5123408A (ja) * 1974-07-24 1976-02-25 Nippon Steel Corp Kogyoyorohoshujiniokeru ronaikankisochi

Also Published As

Publication number Publication date
GB1590664A (en) 1981-06-03
DE2758399A1 (de) 1978-07-13
DE2758399C2 (de) 1986-04-10
JPS6228628B2 (fr) 1987-06-22
JPS5384411A (en) 1978-07-25

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US4092665A (en) Method and means for extracting variable length data from fixed length bytes
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US4092676A (en) Block length multiple plus run length residue codes for run length encoding
US4092675A (en) Truncated run length encoding with a modular variable length code format
US4092677A (en) Truncated run length encoding for fractionally difference modulated video signals
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US4511213A (en) Coding method for multilevel-gradated picture signal
CA1118091A (fr) Codes de reste de multiple de longueur de bloc plus la longueur d'execution pour codage de longueur d'execution
US4058674A (en) Graphic information compression method and system
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Legal Events

Date Code Title Description
MKEX Expiry