JPS5752283A - Forecast decoding device - Google Patents

Forecast decoding device

Info

Publication number
JPS5752283A
JPS5752283A JP12612780A JP12612780A JPS5752283A JP S5752283 A JPS5752283 A JP S5752283A JP 12612780 A JP12612780 A JP 12612780A JP 12612780 A JP12612780 A JP 12612780A JP S5752283 A JPS5752283 A JP S5752283A
Authority
JP
Japan
Prior art keywords
signal
forecasting
circuit
picture signal
supplied
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
JP12612780A
Other languages
Japanese (ja)
Other versions
JPH0542197B2 (en
Inventor
Toshio Koga
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 JP12612780A priority Critical patent/JPS5752283A/en
Priority to US06/225,401 priority patent/US4371895A/en
Priority to CA000368698A priority patent/CA1158763A/en
Publication of JPS5752283A publication Critical patent/JPS5752283A/en
Publication of JPH0542197B2 publication Critical patent/JPH0542197B2/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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation

Abstract

PURPOSE:To receive and decode a picture signal which is forecast-encoded, in a simple constitution, by stretching and separating a signal showing an optimum forecasting function which is compressed and received, and a forecasting error signal, and regenerating the picture signal in accordance with said result. CONSTITUTION:When a picture signal which has been encoded in its forecasting and is compressed in its information is supplied, an information expanding circuit 11 expands and separates information showing an optimum forecasting function, and a forecasting error signal, respectively. A forecasting signal generating circuit 12 generates an optimum forecasting signal in accordance with the information showing the optimum forecasting function. This signal is supplied to an adding circuit 13, the sum with the forecasting error signal is taken, and its signal becomes a regenerated picture signal. This picture signal is applied to a scanning reverse converting circuit 14, is returned back to a picture signal of its original time series, and is outputted from a line 214. On the other hand, the regenerated picture signal is supplied to a delaying circuit 15, too, is delayed by a 1 frame time, and is supplied to the circuit 12 as a supplementary picture signal for generating a forecasting signal in the circuit 12, which is required for the next block.
JP12612780A 1980-01-18 1980-09-12 Forecast decoding device Granted JPS5752283A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP12612780A JPS5752283A (en) 1980-09-12 1980-09-12 Forecast decoding device
US06/225,401 US4371895A (en) 1980-01-18 1981-01-15 Coded video signal transmitting and receiving system
CA000368698A CA1158763A (en) 1980-01-18 1981-01-16 Coded video signal transmitting and receiving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12612780A JPS5752283A (en) 1980-09-12 1980-09-12 Forecast decoding device

Publications (2)

Publication Number Publication Date
JPS5752283A true JPS5752283A (en) 1982-03-27
JPH0542197B2 JPH0542197B2 (en) 1993-06-25

Family

ID=14927321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12612780A Granted JPS5752283A (en) 1980-01-18 1980-09-12 Forecast decoding device

Country Status (1)

Country Link
JP (1) JPS5752283A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186179A (en) * 1984-03-06 1985-09-21 Nec Corp System and device for predictive coding of picture signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443413A (en) * 1977-09-12 1979-04-06 Hitachi Ltd Picture signal encoding system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443413A (en) * 1977-09-12 1979-04-06 Hitachi Ltd Picture signal encoding system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186179A (en) * 1984-03-06 1985-09-21 Nec Corp System and device for predictive coding of picture signal

Also Published As

Publication number Publication date
JPH0542197B2 (en) 1993-06-25

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