JPS5745788A - Televison signal processing device - Google Patents

Televison signal processing device

Info

Publication number
JPS5745788A
JPS5745788A JP12088280A JP12088280A JPS5745788A JP S5745788 A JPS5745788 A JP S5745788A JP 12088280 A JP12088280 A JP 12088280A JP 12088280 A JP12088280 A JP 12088280A JP S5745788 A JPS5745788 A JP S5745788A
Authority
JP
Japan
Prior art keywords
difference
value
coefficient
frames
circuit
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
JP12088280A
Other languages
Japanese (ja)
Inventor
Naoki Takegawa
Takeshi Matsuoka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP12088280A priority Critical patent/JPS5745788A/en
Publication of JPS5745788A publication Critical patent/JPS5745788A/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
    • H04N19/50—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

Abstract

PURPOSE:To reduce generation of information between frames and improve the quality of picture by determining the value of coefficient by which the difference between frames is to be multiplied in coding between frames by value of multiplicication coefficient of one frame before, the difference between frames and a controlling signal from outside. CONSTITUTION:Digitized TV signals are inputted to a signal input terminal and the value of output picture element of a frame delay circuit 3 is subtracted by a subtracter 2 to find out the difference and inputted to a multiplier 4. the difference value from the subtracter 2, control signals from a control signal input terminal 9, and multiplication coefficient delayed by one frame by a frame delay circuit 8 are inputted to a coefficient setting circuit 5. A coefficient by which the difference is to be multiplied is determined by the circuit 5 add inputted to the multiplier 4. The difference value is multiplied by a coefficient smaller than 1, and not negative, determined by the circuit 5 to suppress the difference value and a picture element value of output of the circuit 3 is added by an adder 6. Thus, the amount of generated information is reduced and picture quality of coding between frames is improved.
JP12088280A 1980-09-01 1980-09-01 Televison signal processing device Pending JPS5745788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12088280A JPS5745788A (en) 1980-09-01 1980-09-01 Televison signal processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12088280A JPS5745788A (en) 1980-09-01 1980-09-01 Televison signal processing device

Publications (1)

Publication Number Publication Date
JPS5745788A true JPS5745788A (en) 1982-03-15

Family

ID=14797298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12088280A Pending JPS5745788A (en) 1980-09-01 1980-09-01 Televison signal processing device

Country Status (1)

Country Link
JP (1) JPS5745788A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02132641U (en) * 1989-04-07 1990-11-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02132641U (en) * 1989-04-07 1990-11-05

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