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JPS56165463A - Coding system of variable density picture - Google Patents

Coding system of variable density picture

Info

Publication number
JPS56165463A
JPS56165463A JP6872880A JP6872880A JPS56165463A JP S56165463 A JPS56165463 A JP S56165463A JP 6872880 A JP6872880 A JP 6872880A JP 6872880 A JP6872880 A JP 6872880A JP S56165463 A JPS56165463 A JP S56165463A
Authority
JP
Japan
Prior art keywords
coding
code
coder
converted
highly efficient
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.)
Pending
Application number
JP6872880A
Other languages
Japanese (ja)
Inventor
Sumio Mori
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP6872880A priority Critical patent/JPS56165463A/en
Publication of JPS56165463A publication Critical patent/JPS56165463A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To realize a highly efficient compressed coding, by using a predictive coding and an entropy coding. CONSTITUTION:The output of a TV camera 1 is quantized by a differential device 2 and a quantizer 3 and then converted into the 1st code through the 1st coder 6. This code which received a predictive coding receives a run length coding from a clock buffer memory 7 through the 2nd coder 8. The run length code received through a transmission line l is decoded into the 1st code with every bit plane by the 2nd coder 10 to be stored successively in a block buffer memory 11. The picture elements in the memory 11 are read successively and converted into a quantized value through a decoder 12. Then a reproduced picture is obtained through an adder 13 and a predicting device 14 to be displayed or recorded at an output device 15. As a result, a highly efficient coding is made possible with a high compressibility.
JP6872880A 1980-05-23 1980-05-23 Coding system of variable density picture Pending JPS56165463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6872880A JPS56165463A (en) 1980-05-23 1980-05-23 Coding system of variable density picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6872880A JPS56165463A (en) 1980-05-23 1980-05-23 Coding system of variable density picture

Publications (1)

Publication Number Publication Date
JPS56165463A true JPS56165463A (en) 1981-12-19

Family

ID=13382137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6872880A Pending JPS56165463A (en) 1980-05-23 1980-05-23 Coding system of variable density picture

Country Status (1)

Country Link
JP (1) JPS56165463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448642A (en) * 1992-05-12 1995-09-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method for coding low entrophy data

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448642A (en) * 1992-05-12 1995-09-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method for coding low entrophy data

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