JPS5673975A - Coding and decoding system for multivalue video signal and its device - Google Patents

Coding and decoding system for multivalue video signal and its device

Info

Publication number
JPS5673975A
JPS5673975A JP15034979A JP15034979A JPS5673975A JP S5673975 A JPS5673975 A JP S5673975A JP 15034979 A JP15034979 A JP 15034979A JP 15034979 A JP15034979 A JP 15034979A JP S5673975 A JPS5673975 A JP S5673975A
Authority
JP
Japan
Prior art keywords
signal
circuit
coding
forecast
forecast error
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.)
Granted
Application number
JP15034979A
Other languages
Japanese (ja)
Other versions
JPS6364949B2 (en
Inventor
Shoji Mizuno
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15034979A priority Critical patent/JPS5673975A/en
Priority to US06/207,500 priority patent/US4344086A/en
Priority to CA000365014A priority patent/CA1165861A/en
Publication of JPS5673975A publication Critical patent/JPS5673975A/en
Publication of JPS6364949B2 publication Critical patent/JPS6364949B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/93—Run-length coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE:To make effectively coding the forecast error signal, by producing the forecast error signal suitable to one dimensional run length coding and using the coder with almost the same constitution as the one dimensional run length coder already developed for binary video signal. CONSTITUTION:A forecast coding circuit 2 inputs a multivalue video signal 1 obtained from the photoelectric conversion of multivalue picture, the video signal during present input is forecast based on the video signal S already input, and the forecast error signal 3 is fed to a coding circuit 4. The forecast error coding circuit 4 compressingly codes the forecast error signal 3 and outputs it as the forecast error coded signal 5. The control circuit 6 transmists the clock signal, control signal and synchronizing signal and controls each circuit. The expanded decoding circuit 18 inputs the forecast error coding signal 45 from the coder and inputs it to the forecast decoding circuit 19 as the forecast error signal 47 through expansion and decoding to obtain the decoded video signal 48. The control circuit 20 transmits the clock signal, control signal and synchronizing signal to control each circuit.
JP15034979A 1979-11-20 1979-11-20 Coding and decoding system for multivalue video signal and its device Granted JPS5673975A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP15034979A JPS5673975A (en) 1979-11-20 1979-11-20 Coding and decoding system for multivalue video signal and its device
US06/207,500 US4344086A (en) 1979-11-20 1980-11-17 Encoder for encoding a multilevel pel signal sequence with probability representative mode codes allotted to prediction error codes for each pel signal and a decoder therefor
CA000365014A CA1165861A (en) 1979-11-20 1980-11-19 Encoder-decoder system for multilevel picture elements to prediction error codes for each pel signal and a decoder therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15034979A JPS5673975A (en) 1979-11-20 1979-11-20 Coding and decoding system for multivalue video signal and its device

Publications (2)

Publication Number Publication Date
JPS5673975A true JPS5673975A (en) 1981-06-19
JPS6364949B2 JPS6364949B2 (en) 1988-12-14

Family

ID=15495042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15034979A Granted JPS5673975A (en) 1979-11-20 1979-11-20 Coding and decoding system for multivalue video signal and its device

Country Status (1)

Country Link
JP (1) JPS5673975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930366A (en) * 1982-08-12 1984-02-17 Mitsubishi Electric Corp Device for encoding picture
JPS5937774A (en) * 1982-08-26 1984-03-01 Nec Corp Method and device for encoding picture signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624877A (en) * 1979-08-06 1981-03-10 Nec Corp Coder for multi-video signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624877A (en) * 1979-08-06 1981-03-10 Nec Corp Coder for multi-video signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930366A (en) * 1982-08-12 1984-02-17 Mitsubishi Electric Corp Device for encoding picture
JPH0214830B2 (en) * 1982-08-12 1990-04-10 Mitsubishi Electric Corp
JPS5937774A (en) * 1982-08-26 1984-03-01 Nec Corp Method and device for encoding picture signal
JPH0424907B2 (en) * 1982-08-26 1992-04-28 Nippon Electric Co

Also Published As

Publication number Publication date
JPS6364949B2 (en) 1988-12-14

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