JPS55162686A - Encoding system between frames - Google Patents

Encoding system between frames

Info

Publication number
JPS55162686A
JPS55162686A JP7063179A JP7063179A JPS55162686A JP S55162686 A JPS55162686 A JP S55162686A JP 7063179 A JP7063179 A JP 7063179A JP 7063179 A JP7063179 A JP 7063179A JP S55162686 A JPS55162686 A JP S55162686A
Authority
JP
Japan
Prior art keywords
picture
fed
signal
sampling
threshold
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
JP7063179A
Other languages
Japanese (ja)
Other versions
JPS6341472B2 (en
Inventor
Yuichi Ninomiya
Yoshimichi Otsuka
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP7063179A priority Critical patent/JPS55162686A/en
Priority to GB8017810A priority patent/GB2050752B/en
Priority to US06/155,786 priority patent/US4307420A/en
Priority to DE3021033A priority patent/DE3021033C2/en
Priority to FR8012626A priority patent/FR2458965A1/en
Publication of JPS55162686A publication Critical patent/JPS55162686A/en
Priority to GB08325391A priority patent/GB2128847B/en
Publication of JPS6341472B2 publication Critical patent/JPS6341472B2/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
    • H04N19/50—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 avoid spurious profile from being caused to the reproduced picture due to the picture represented with the picture signal, by setting the encoded threshold level to discriminate the picture element signal having the level difference between the frames according to the fineness of picture. CONSTITUTION:The sampling picture signal which is obtained from the sampling picture signal from the input terminal fed to the one picture element delay unit 8 for one picture element delay, and the sampling picture signal without delay are fed to the subtractor 9 to form the difference signal between picture elements, and fed to the absolute unit 10 to pick up the absolute value and fed to the access input terminal of ROM12 via the low pass filter 11. The threshold level control signal calculated from the transmission information amount calculator 6 is fed to the ROM12 and suitable encoding threshold level value is read out from the signals of the both and fed to the threshold processing unit 2 as the variable output signal of the threshold changer 7.
JP7063179A 1979-06-07 1979-06-07 Encoding system between frames Granted JPS55162686A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP7063179A JPS55162686A (en) 1979-06-07 1979-06-07 Encoding system between frames
GB8017810A GB2050752B (en) 1979-06-07 1980-05-30 Motion compensated interframe coding system
US06/155,786 US4307420A (en) 1979-06-07 1980-06-02 Motion-compensated interframe coding system
DE3021033A DE3021033C2 (en) 1979-06-07 1980-06-03 Method for motion-compensated inter-field coding
FR8012626A FR2458965A1 (en) 1979-06-07 1980-06-06 INTER-FRAME ENCODING SYSTEM WITH IMAGE MOTION COMPENSATION, USEFUL IN TELEVISION
GB08325391A GB2128847B (en) 1979-06-07 1983-09-22 A motion-compensated interframe coding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7063179A JPS55162686A (en) 1979-06-07 1979-06-07 Encoding system between frames

Publications (2)

Publication Number Publication Date
JPS55162686A true JPS55162686A (en) 1980-12-18
JPS6341472B2 JPS6341472B2 (en) 1988-08-17

Family

ID=13437169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7063179A Granted JPS55162686A (en) 1979-06-07 1979-06-07 Encoding system between frames

Country Status (1)

Country Link
JP (1) JPS55162686A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58197983A (en) * 1982-05-14 1983-11-17 Nec Corp Motion compensating inter-frame decoding device
JPS62287719A (en) * 1986-05-23 1987-12-14 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Differential pulse code modulation encoder
JPS6376595A (en) * 1986-09-19 1988-04-06 Hitachi Ltd Interframe coding device
JPH01209877A (en) * 1988-02-17 1989-08-23 Matsushita Electric Ind Co Ltd Picture signal coding method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092017A (en) * 1973-12-12 1975-07-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092017A (en) * 1973-12-12 1975-07-23

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58197983A (en) * 1982-05-14 1983-11-17 Nec Corp Motion compensating inter-frame decoding device
JPS6351632B2 (en) * 1982-05-14 1988-10-14 Nippon Electric Co
JPS62287719A (en) * 1986-05-23 1987-12-14 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Differential pulse code modulation encoder
JPS6376595A (en) * 1986-09-19 1988-04-06 Hitachi Ltd Interframe coding device
JPH01209877A (en) * 1988-02-17 1989-08-23 Matsushita Electric Ind Co Ltd Picture signal coding method

Also Published As

Publication number Publication date
JPS6341472B2 (en) 1988-08-17

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