JPS5487012A - Picture encoding system - Google Patents
Picture encoding systemInfo
- Publication number
- JPS5487012A JPS5487012A JP15353577A JP15353577A JPS5487012A JP S5487012 A JPS5487012 A JP S5487012A JP 15353577 A JP15353577 A JP 15353577A JP 15353577 A JP15353577 A JP 15353577A JP S5487012 A JPS5487012 A JP S5487012A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- rough
- information
- memory
- decoder
- 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
Abstract
PURPOSE: To relaize a high-efficiency picture transmission system through which the transmission quantity can be reduced without lowering the picture quality.
CONSTITUTION: The transmission side and the reception side are shown in (a) and (b) respectively. The output signal of picture input device 1 is digitized via A-D converter 2 and then memorized in memory unit 3. Roughness/fineness decision circuit 4 decides the rough and fine areas of the picture. Then the roughness/fineness boundary information is encoded through encoder 5, and at the same time the picture encoding is given to the rough and fine areas decided by encoder 6 and 7. These encoded signals are stored once into buffer memory 8 and then sent to modulator 9 every picture frame to be modulated and transmitted. The transmitted modulated picture signals are decoded by decoder 11 and then stored in buffer memory 12; and the boundary information of the rough and fine areas is decoded through decoder 13 to be sent to control circuit 14. Based on this information, the control is given to the rough and fine parts of the information supplied to decoder 15 and 16 from memory 12, thus obtaining the picture information at memory 17.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15353577A JPS5487012A (en) | 1977-12-22 | 1977-12-22 | Picture encoding system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15353577A JPS5487012A (en) | 1977-12-22 | 1977-12-22 | Picture encoding system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5487012A true JPS5487012A (en) | 1979-07-11 |
JPS6245751B2 JPS6245751B2 (en) | 1987-09-29 |
Family
ID=15564631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15353577A Granted JPS5487012A (en) | 1977-12-22 | 1977-12-22 | Picture encoding system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5487012A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5038529A (en) * | 1973-08-07 | 1975-04-10 | ||
JPS50127504A (en) * | 1974-03-27 | 1975-10-07 | ||
JPS5144770A (en) * | 1974-10-15 | 1976-04-16 | Matsushita Electric Ind Co Ltd | CHOKUSENKUDOSOCHI |
JPS5148850A (en) * | 1974-10-24 | 1976-04-27 | Takasago Thermal Engineering |
-
1977
- 1977-12-22 JP JP15353577A patent/JPS5487012A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5038529A (en) * | 1973-08-07 | 1975-04-10 | ||
JPS50127504A (en) * | 1974-03-27 | 1975-10-07 | ||
JPS5144770A (en) * | 1974-10-15 | 1976-04-16 | Matsushita Electric Ind Co Ltd | CHOKUSENKUDOSOCHI |
JPS5148850A (en) * | 1974-10-24 | 1976-04-27 | Takasago Thermal Engineering |
Also Published As
Publication number | Publication date |
---|---|
JPS6245751B2 (en) | 1987-09-29 |
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