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JPS56102179A - Device for encoding high-efficient forecasting of television signal - Google Patents

Device for encoding high-efficient forecasting of television signal

Info

Publication number
JPS56102179A
JPS56102179A JP437980A JP437980A JPS56102179A JP S56102179 A JPS56102179 A JP S56102179A JP 437980 A JP437980 A JP 437980A JP 437980 A JP437980 A JP 437980A JP S56102179 A JPS56102179 A JP S56102179A
Authority
JP
Japan
Prior art keywords
circuit
forecasting
output
picture elements
signal
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
JP437980A
Other languages
Japanese (ja)
Other versions
JPH0363274B2 (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 JP437980A priority Critical patent/JPS56102179A/en
Priority to US06/225,401 priority patent/US4371895A/en
Priority to CA000368698A priority patent/CA1158763A/en
Publication of JPS56102179A publication Critical patent/JPS56102179A/en
Publication of JPH0363274B2 publication Critical patent/JPH0363274B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make it possible to encode moving pictures with high efficiency by dividing an input signal into blocks consisting of plural picture elements, calculating the value of the error between blocks and supposing a direction to make the error value decrease most acutely. CONSTITUTION:An input television (TV) signal is divided into blocks consisting of plural picture elements by blocking circuit 210 and the output from circuit 210 is supplied to delay circuit 220 in every picture element and differential circuit 230 in every M picture elements respectively in parallel. The output from circuit 220 is subtracted with a forecasting signal outputted from forecasting block formation circuit 250 in subtraction circuit 110 and the forecasting error represented by the difference is quantized by quantization circuit 120. The output from circuit 120 is added to the forecasting signal outputted from circuit 250 and written in frame memory 100. The output from memory 100 is entered into block formation circuit 240 and picture elements of 3 blocks are selected from circuit 240 on the basis of the command outputted from control circuit 220. These selected picture elements and the input TV signal from circuit 210 are subtracted, squared and accumulated and these output is appreciated by judgement circuit 260. After repeating the operation mentioned above by the fixed number of times, the optimum forecasting block is decided by decision circuit 270.
JP437980A 1980-01-18 1980-01-18 Device for encoding high-efficient forecasting of television signal Granted JPS56102179A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP437980A JPS56102179A (en) 1980-01-18 1980-01-18 Device for encoding high-efficient forecasting of television signal
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
JP437980A JPS56102179A (en) 1980-01-18 1980-01-18 Device for encoding high-efficient forecasting of television signal

Publications (2)

Publication Number Publication Date
JPS56102179A true JPS56102179A (en) 1981-08-15
JPH0363274B2 JPH0363274B2 (en) 1991-09-30

Family

ID=11582717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP437980A Granted JPS56102179A (en) 1980-01-18 1980-01-18 Device for encoding high-efficient forecasting of television signal

Country Status (1)

Country Link
JP (1) JPS56102179A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254107A (en) * 1984-05-31 1985-12-14 Canon Inc Automatic tracking device of camera
JPS60256113A (en) * 1984-05-31 1985-12-17 Canon Inc Automatic tracking device of camera
JPS61105178A (en) * 1984-10-27 1986-05-23 Sony Corp Detecting method of television signal movement
JPS61201588A (en) * 1985-03-04 1986-09-06 Toshiba Corp motion vector detection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254107A (en) * 1984-05-31 1985-12-14 Canon Inc Automatic tracking device of camera
JPS60256113A (en) * 1984-05-31 1985-12-17 Canon Inc Automatic tracking device of camera
JPS61105178A (en) * 1984-10-27 1986-05-23 Sony Corp Detecting method of television signal movement
JPS61201588A (en) * 1985-03-04 1986-09-06 Toshiba Corp motion vector detection device

Also Published As

Publication number Publication date
JPH0363274B2 (en) 1991-09-30

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