JPS5792985A - High-efficiency forecast encoding device - Google Patents

High-efficiency forecast encoding device

Info

Publication number
JPS5792985A
JPS5792985A JP16940780A JP16940780A JPS5792985A JP S5792985 A JPS5792985 A JP S5792985A JP 16940780 A JP16940780 A JP 16940780A JP 16940780 A JP16940780 A JP 16940780A JP S5792985 A JPS5792985 A JP S5792985A
Authority
JP
Japan
Prior art keywords
signal
forecast
circuit
supplied
optimum
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
JP16940780A
Other languages
Japanese (ja)
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 JP16940780A priority Critical patent/JPS5792985A/en
Priority to US06/225,401 priority patent/US4371895A/en
Priority to CA000368698A priority patent/CA1158763A/en
Publication of JPS5792985A publication Critical patent/JPS5792985A/en
Pending 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 obtain a very small-size device operated in a high speed, by outputting forecast values corresponding to plural forecast functions for the picture signal which traverses plural scanning lines and is outputted in the order of blocks. CONSTITUTION:An input picture signal is supplied to a scanning converting circuit 10 to form blocks, and they are supplied to a delay circuit 90 and an optimum forecast function discriminating circuit 80. The difference between the picture signal, which is supplied from the delay circuit 90 to a subtracting circuit 20, and a forecast signal is operated, and the forecast error signal is quantized and is supplied to an information compression circuit 70, and simultaneously, the output of a forecast signal generating circuit 50 is supplied to an adder 40 and is added to the quantized forecast error and is used for generation of a local decoding signal. The optimum forecaset function discriminating circuit 80 uses the input picture signal and the delayed local decodin signal to determine optimum forecase functions, and this information is supplied to the information compressing circuit 70 and is subjected to code conversion together with the forecast error signal and the synchronizing signal and is outputted to a transmission line.
JP16940780A 1980-01-18 1980-12-01 High-efficiency forecast encoding device Pending JPS5792985A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16940780A JPS5792985A (en) 1980-12-01 1980-12-01 High-efficiency forecast encoding 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
JP16940780A JPS5792985A (en) 1980-12-01 1980-12-01 High-efficiency forecast encoding device

Publications (1)

Publication Number Publication Date
JPS5792985A true JPS5792985A (en) 1982-06-09

Family

ID=15886021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16940780A Pending JPS5792985A (en) 1980-01-18 1980-12-01 High-efficiency forecast encoding device

Country Status (1)

Country Link
JP (1) JPS5792985A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194588A (en) * 1983-04-20 1984-11-05 Nippon Telegr & Teleph Corp <Ntt> Encoding device between movement compensating frames
JPS59194589A (en) * 1983-04-20 1984-11-05 Nippon Telegr & Teleph Corp <Ntt> Encoding device between movement compensating frames
JPS59223033A (en) * 1983-06-01 1984-12-14 Sony Corp Digital signal transmitting method
JPH02257493A (en) * 1989-03-29 1990-10-18 Aisin Seiki Co Ltd Storage device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194588A (en) * 1983-04-20 1984-11-05 Nippon Telegr & Teleph Corp <Ntt> Encoding device between movement compensating frames
JPS59194589A (en) * 1983-04-20 1984-11-05 Nippon Telegr & Teleph Corp <Ntt> Encoding device between movement compensating frames
JPS6359313B2 (en) * 1983-04-20 1988-11-18
JPS6359312B2 (en) * 1983-04-20 1988-11-18
JPS59223033A (en) * 1983-06-01 1984-12-14 Sony Corp Digital signal transmitting method
JPH0574253B2 (en) * 1983-06-01 1993-10-18 Sony Corp
JPH02257493A (en) * 1989-03-29 1990-10-18 Aisin Seiki Co Ltd Storage device

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