JPS6132714B2 - - Google Patents
Info
- Publication number
- JPS6132714B2 JPS6132714B2 JP51014030A JP1403076A JPS6132714B2 JP S6132714 B2 JPS6132714 B2 JP S6132714B2 JP 51014030 A JP51014030 A JP 51014030A JP 1403076 A JP1403076 A JP 1403076A JP S6132714 B2 JPS6132714 B2 JP S6132714B2
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- mark
- circuit
- partial
- character
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 17
- 238000003708 edge detection Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 18
- 238000000605 extraction Methods 0.000 description 13
- 238000003384 imaging method Methods 0.000 description 10
- 239000000284 extract Substances 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010047571 Visual impairment Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Character Discrimination (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1403076A JPS5298431A (en) | 1976-02-13 | 1976-02-13 | Reader |
| US05/766,486 US4115761A (en) | 1976-02-13 | 1977-02-07 | Method and device for recognizing a specific pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1403076A JPS5298431A (en) | 1976-02-13 | 1976-02-13 | Reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5298431A JPS5298431A (en) | 1977-08-18 |
| JPS6132714B2 true JPS6132714B2 (it) | 1986-07-29 |
Family
ID=11849751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1403076A Granted JPS5298431A (en) | 1976-02-13 | 1976-02-13 | Reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5298431A (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167323U (it) * | 1987-04-20 | 1988-10-31 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4987242A (it) * | 1972-08-30 | 1974-08-21 |
-
1976
- 1976-02-13 JP JP1403076A patent/JPS5298431A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4987242A (it) * | 1972-08-30 | 1974-08-21 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167323U (it) * | 1987-04-20 | 1988-10-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5298431A (en) | 1977-08-18 |
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