JPS55136769A - Processing method for video signal - Google Patents

Processing method for video signal

Info

Publication number
JPS55136769A
JPS55136769A JP4562979A JP4562979A JPS55136769A JP S55136769 A JPS55136769 A JP S55136769A JP 4562979 A JP4562979 A JP 4562979A JP 4562979 A JP4562979 A JP 4562979A JP S55136769 A JPS55136769 A JP S55136769A
Authority
JP
Japan
Prior art keywords
unit
signal
expection
memory
picture
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
JP4562979A
Other languages
Japanese (ja)
Inventor
Yoshihiro Uno
Hiroaki Kodera
Kunio Sannomiya
Kunio Yoshida
Akiyoshi Tanaka
Hiroaki Miwa
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.)
Panasonic System Solutions Japan Co Ltd
Panasonic Holdings Corp
Original Assignee
Matsushita Graphic Communication Systems Inc
Matsushita Electric Industrial 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 Matsushita Graphic Communication Systems Inc, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Graphic Communication Systems Inc
Priority to JP4562979A priority Critical patent/JPS55136769A/en
Publication of JPS55136769A publication Critical patent/JPS55136769A/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)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To enable increase compression rate of video information and to constitute easy to see picture by reducing unnaturality, by increasing the ratio of matched expected value through the addition of expected signal to the means digitizing the picture information. CONSTITUTION:The list where discriminating the expected video element as 0 or 1 to all the combination of the reference picture is stored in the memory unit of the expection unit 7. The optical signal is converted into electric signal with the photo electric conversion unit 4 and binarized with the binary unit 5. The expecation unit 7 selects the reference picture from the memory 6 and delivers the expected value signal to the binary unit 5 by referencing the list in the expection unit 7. The picture signal binarized is stored in the memory 6 and delivered to the expection unit 7. The expection signal is produced and fed to the comparator 8 where it is compared with actual value, and coding is made by delivering coincidence or uncoincidence signal to the coder 9, and it is delivered to the reception end via the buffer memory 10.
JP4562979A 1979-04-13 1979-04-13 Processing method for video signal Pending JPS55136769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4562979A JPS55136769A (en) 1979-04-13 1979-04-13 Processing method for video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4562979A JPS55136769A (en) 1979-04-13 1979-04-13 Processing method for video signal

Publications (1)

Publication Number Publication Date
JPS55136769A true JPS55136769A (en) 1980-10-24

Family

ID=12724658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4562979A Pending JPS55136769A (en) 1979-04-13 1979-04-13 Processing method for video signal

Country Status (1)

Country Link
JP (1) JPS55136769A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5373029A (en) * 1976-12-13 1978-06-29 Nippon Telegr & Teleph Corp <Ntt> Binary sampling methid of analog facsimile signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5373029A (en) * 1976-12-13 1978-06-29 Nippon Telegr & Teleph Corp <Ntt> Binary sampling methid of analog facsimile signal

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