JPS54157429A - Picture signal processor - Google Patents
Picture signal processorInfo
- 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
Links
- 239000000203 mixture Substances 0.000 abstract 5
Landscapes
- Picture Signal Circuits (AREA)
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
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)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6271416U (en) * | 1985-10-25 | 1987-05-07 |
-
1978
- 1978-06-01 JP JP53066390A patent/JPS5853826B2/en not_active Expired
Cited By (5)
| 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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