JPS5492114A - Picture compressing and restoring system - Google Patents
Picture compressing and restoring systemInfo
- Publication number
- JPS5492114A JPS5492114A JP16029177A JP16029177A JPS5492114A JP S5492114 A JPS5492114 A JP S5492114A JP 16029177 A JP16029177 A JP 16029177A JP 16029177 A JP16029177 A JP 16029177A JP S5492114 A JPS5492114 A JP S5492114A
- Authority
- JP
- Japan
- Prior art keywords
- information
- byte
- transmitted
- pattern
- flag
- 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
Links
Abstract
PURPOSE: To increase the information compression rate by transmitting only the changed block pattern information in the block information and transmitting the flag information which is a block unit picture map.
CONSTITUTION: In case where there is a black and white pattern in picture (a), one scanning line is divided into each plural unit (8 bits = 1 byte), thus dividing into a total of 256(bytes) and forming a group of blocks. With the picture(a), the first scanning line transmits the total pattern information of 256 parts and register them, but in case of the second scanning line, the first byte, second byte,......are all in the same pattern and the pattern information is not transmitted and, therefore, the first byte "0", second byte "0"......are transmitted as the flag information (b) and registered. The compressed pattern information and flag information are transmitted as a pair, but in the first part of (a), only the pattern information of numericals (1)-(4) located outside of the left column is transmitted while at the same time (1) is transmitted as the flag and the register is changed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16029177A JPS5492114A (en) | 1977-12-29 | 1977-12-29 | Picture compressing and restoring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16029177A JPS5492114A (en) | 1977-12-29 | 1977-12-29 | Picture compressing and restoring system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5492114A true JPS5492114A (en) | 1979-07-21 |
Family
ID=15711797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16029177A Pending JPS5492114A (en) | 1977-12-29 | 1977-12-29 | Picture compressing and restoring system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5492114A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09149263A (en) * | 1995-11-22 | 1997-06-06 | Nec Corp | Prediction coder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5042719A (en) * | 1973-08-20 | 1975-04-18 |
-
1977
- 1977-12-29 JP JP16029177A patent/JPS5492114A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5042719A (en) * | 1973-08-20 | 1975-04-18 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09149263A (en) * | 1995-11-22 | 1997-06-06 | Nec Corp | Prediction coder |
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