JPS5721168A - Video data coding method - Google Patents

Video data coding method

Info

Publication number
JPS5721168A
JPS5721168A JP9558580A JP9558580A JPS5721168A JP S5721168 A JPS5721168 A JP S5721168A JP 9558580 A JP9558580 A JP 9558580A JP 9558580 A JP9558580 A JP 9558580A JP S5721168 A JPS5721168 A JP S5721168A
Authority
JP
Japan
Prior art keywords
error signal
forecast error
share
line
code
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
JP9558580A
Other languages
Japanese (ja)
Inventor
Kenji Kono
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9558580A priority Critical patent/JPS5721168A/en
Publication of JPS5721168A publication Critical patent/JPS5721168A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make the coding of video data easy, by making coding in the form having the highest data compression rate, through the assignment of new data pattern with a given rule to a plurality of video element components every row or column of collection block of a forecast error signal. CONSTITUTION:A forecast error signal generator 80 is constituted with a plurality of operators 81-1, 81-n, and the operators 81-1-81-n are connected with a plurality of shift registers 82-1-82-n-1. The video element data Din is sequentially received at the generator 80, the data pattern in a row unit is outputted as a forecast error signal Dout for one line's share, two line's share, - n line's share. The forecast error signal is set to an ROM94 and added to a discriminator 91 to discriminate if the bit of the forecast error signal is consecutive code. The signal is set to an ROM93 via a counter 92, and the code set to the ROM93 and that to the ROM94 are selected at a selector 95 to output the code with higher compression rate.
JP9558580A 1980-07-15 1980-07-15 Video data coding method Pending JPS5721168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9558580A JPS5721168A (en) 1980-07-15 1980-07-15 Video data coding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9558580A JPS5721168A (en) 1980-07-15 1980-07-15 Video data coding method

Publications (1)

Publication Number Publication Date
JPS5721168A true JPS5721168A (en) 1982-02-03

Family

ID=14141652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9558580A Pending JPS5721168A (en) 1980-07-15 1980-07-15 Video data coding method

Country Status (1)

Country Link
JP (1) JPS5721168A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012865A (en) * 1983-07-01 1985-01-23 Canon Inc Highly efficient encoding system of picture data
US7221483B2 (en) 2000-09-05 2007-05-22 Ricoh Company, Ltd. Image encoding method and apparatus, image decoding method and apparatus, image processing apparatus, image formation apparatus, and computer-executable programs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012865A (en) * 1983-07-01 1985-01-23 Canon Inc Highly efficient encoding system of picture data
JPH0478068B2 (en) * 1983-07-01 1992-12-10 Canon Kk
US7221483B2 (en) 2000-09-05 2007-05-22 Ricoh Company, Ltd. Image encoding method and apparatus, image decoding method and apparatus, image processing apparatus, image formation apparatus, and computer-executable programs

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