JPS54157429A - Picture signal processor - Google Patents

Picture signal processor

Info

Publication number
JPS54157429A
JPS54157429A JP6639078A JP6639078A JPS54157429A JP S54157429 A JPS54157429 A JP S54157429A JP 6639078 A JP6639078 A JP 6639078A JP 6639078 A JP6639078 A JP 6639078A JP S54157429 A JPS54157429 A JP S54157429A
Authority
JP
Japan
Prior art keywords
signal
frame
circuit
mixture ratio
output
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
JP6639078A
Other languages
Japanese (ja)
Other versions
JPS5853826B2 (en
Inventor
Kunihiko Mototani
Asao Takada
Tadashi Okada
Keinosuke Murakami
Kazumasa Enami
Kotaro Wakui
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
Panasonic Holdings Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
Matsushita Electric Industrial 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp, Matsushita Electric Industrial Co Ltd filed Critical Nippon Hoso Kyokai NHK
Priority to JP53066390A priority Critical patent/JPS5853826B2/en
Publication of JPS54157429A publication Critical patent/JPS54157429A/en
Publication of JPS5853826B2 publication Critical patent/JPS5853826B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To ensure an effective noise reduction and thus to enhance the picture quality through variable mixture ratio by memorizing the output signal of the arithmetic circuit via the frame memory in the form of the input and at the same time using the output as the signal preceding by one frame to control the motion detector circuit.
CONSTITUTION: Motion detector circuit 3 detects the difference between the signal of one frame where the TV signal exists and th signal preceding by one frame to then detect the motion between the picture frames. And mixture ratio generator circuit 13 receives the output of circuit 3 to decide the mixture ratio between the signal of the specified frame and the signal preceding by one frame. Arithmetic circuit 2 mixes up the frame signal and the signal preceding by one frame based on the mixture ratio decided through circuit 13, and the output signal of circuit 2 is memorized through memory 4 in the form of the input. At the same time, the output is used as the signal preceding by one frame to control circuit 3 and then vary the mixture ratio. In such way, the noise can be reduced effectively to enhance the picture quality.
COPYRIGHT: (C)1979,JPO&Japio
JP53066390A 1978-06-01 1978-06-01 Image signal processing device Expired JPS5853826B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53066390A JPS5853826B2 (en) 1978-06-01 1978-06-01 Image signal processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53066390A JPS5853826B2 (en) 1978-06-01 1978-06-01 Image signal processing device

Publications (2)

Publication Number Publication Date
JPS54157429A true JPS54157429A (en) 1979-12-12
JPS5853826B2 JPS5853826B2 (en) 1983-12-01

Family

ID=13314442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53066390A Expired JPS5853826B2 (en) 1978-06-01 1978-06-01 Image signal processing device

Country Status (1)

Country Link
JP (1) JPS5853826B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS581383A (en) * 1981-04-24 1983-01-06 ゼネラル・エレクトリツク・カンパニイ Device for reducing influence of noise in video television display
JPS58500635A (en) * 1981-04-10 1983-04-21 アムペツクス　コ−ポレ−シヨン A system that spatially transforms images
JPS62269574A (en) * 1986-05-19 1987-11-24 Nec Home Electronics Ltd Cyclic type noise reduction device
JPS6449481A (en) * 1987-08-20 1989-02-23 Nippon Denki Home Electronics Noise reducer
JPH01122273A (en) * 1987-11-05 1989-05-15 Canon Inc Noise reducing circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6271416U (en) * 1985-10-25 1987-05-07

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58500635A (en) * 1981-04-10 1983-04-21 アムペツクス　コ−ポレ−シヨン A system that spatially transforms images
JPS581383A (en) * 1981-04-24 1983-01-06 ゼネラル・エレクトリツク・カンパニイ Device for reducing influence of noise in video television display
JPS62269574A (en) * 1986-05-19 1987-11-24 Nec Home Electronics Ltd Cyclic type noise reduction device
JPS6449481A (en) * 1987-08-20 1989-02-23 Nippon Denki Home Electronics Noise reducer
JPH01122273A (en) * 1987-11-05 1989-05-15 Canon Inc Noise reducing circuit

Also Published As

Publication number Publication date
JPS5853826B2 (en) 1983-12-01

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