JPS56143764A - Decoder for multilevel picture signal - Google Patents

Decoder for multilevel picture signal

Info

Publication number
JPS56143764A
JPS56143764A JP4667480A JP4667480A JPS56143764A JP S56143764 A JPS56143764 A JP S56143764A JP 4667480 A JP4667480 A JP 4667480A JP 4667480 A JP4667480 A JP 4667480A JP S56143764 A JPS56143764 A JP S56143764A
Authority
JP
Japan
Prior art keywords
signal
forecasting
picture signal
encoding circuit
forecasting 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
JP4667480A
Other languages
Japanese (ja)
Other versions
JPS6348229B2 (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 JP4667480A priority Critical patent/JPS56143764A/en
Priority to US06/207,500 priority patent/US4344086A/en
Priority to CA000365014A priority patent/CA1165861A/en
Publication of JPS56143764A publication Critical patent/JPS56143764A/en
Publication of JPS6348229B2 publication Critical patent/JPS6348229B2/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)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To enable the best forecasting with small-capacity ROM, by composing a picture signal of a signal obtained by compounding and encoding a forecasting error signal and then by decoding it. CONSTITUTION:Forecasting encoding circuit 2 receives many-valued picture signal 1 obtained by photoelectrically converting many pictures and, on the basis of reference picture signal S, forecasts the current input picture signal to send its forecasting error signal 3 to compressing encoding circuit 4. Compressing encoding circuit 4 compresses and encodes forecasting error signal 3 and outputs resulting forecasting error encoded signal 5. Control circuit 6 sends a clock signal, control signal and synchronizing signal to control respective circuits.
JP4667480A 1979-11-20 1980-04-09 Decoder for multilevel picture signal Granted JPS56143764A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4667480A JPS56143764A (en) 1980-04-09 1980-04-09 Decoder for multilevel picture signal
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
JP4667480A JPS56143764A (en) 1980-04-09 1980-04-09 Decoder for multilevel picture signal

Publications (2)

Publication Number Publication Date
JPS56143764A true JPS56143764A (en) 1981-11-09
JPS6348229B2 JPS6348229B2 (en) 1988-09-28

Family

ID=12753912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4667480A Granted JPS56143764A (en) 1979-11-20 1980-04-09 Decoder for multilevel picture signal

Country Status (1)

Country Link
JP (1) JPS56143764A (en)

Also Published As

Publication number Publication date
JPS6348229B2 (en) 1988-09-28

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