JPS5692685A - Preprocessing for graph recognition - Google Patents
Preprocessing for graph recognitionInfo
- Publication number
- JPS5692685A JPS5692685A JP16971079A JP16971079A JPS5692685A JP S5692685 A JPS5692685 A JP S5692685A JP 16971079 A JP16971079 A JP 16971079A JP 16971079 A JP16971079 A JP 16971079A JP S5692685 A JPS5692685 A JP S5692685A
- Authority
- JP
- Japan
- Prior art keywords
- end point
- disconnection
- pattern
- memory
- point coordinates
- 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 enable to detect accurately the graph, by detecting the disconnection of binarized pattern from the end points produced from the disconnection, and obtaining the pattern without disconnection through the change in the binarized slice level.
CONSTITUTION: The end point detection circuit 60 detects the end point of fine line pattern stored in the fine pattern memory 30, and the coordinates are set to the end point coordinates, the direction calculation circuit 80 obtains quantized direction and sets in to the direction memory. Further, this operation is repeated as to all the end point coordinates to obtain direction every end point. Further, the disconnection detecting circuit 100 detects the pair of opposite directions among the directions stored in the memory 90, accesses the end point coordinates corresponding from the memory 70 to obtain the distance among the end point coordinates. If the value is less than a given value, there is disconnection in character stroke, then the level of the binarized slice circuit 2 is changed to obtain the pattern without disconnection for more accurate detection.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16971079A JPS5692685A (en) | 1979-12-26 | 1979-12-26 | Preprocessing for graph recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16971079A JPS5692685A (en) | 1979-12-26 | 1979-12-26 | Preprocessing for graph recognition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5692685A true JPS5692685A (en) | 1981-07-27 |
Family
ID=15891427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16971079A Pending JPS5692685A (en) | 1979-12-26 | 1979-12-26 | Preprocessing for graph recognition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142483A (en) * | 1983-12-28 | 1985-07-27 | Fujitsu Ltd | Method for connecting between unconnected terminal points of linear pattern vector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341941A (en) * | 1976-09-28 | 1978-04-15 | Matsushita Electric Ind Co Ltd | Pattern reading device |
| JPS54153535A (en) * | 1978-05-25 | 1979-12-03 | Fujitsu Ltd | Picture processing system |
-
1979
- 1979-12-26 JP JP16971079A patent/JPS5692685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341941A (en) * | 1976-09-28 | 1978-04-15 | Matsushita Electric Ind Co Ltd | Pattern reading device |
| JPS54153535A (en) * | 1978-05-25 | 1979-12-03 | Fujitsu Ltd | Picture processing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142483A (en) * | 1983-12-28 | 1985-07-27 | Fujitsu Ltd | Method for connecting between unconnected terminal points of linear pattern vector |
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