JPS5638683A - Discriminating method of type of line in pattern recognizer - Google Patents
Discriminating method of type of line in pattern recognizerInfo
- Publication number
- JPS5638683A JPS5638683A JP11287679A JP11287679A JPS5638683A JP S5638683 A JPS5638683 A JP S5638683A JP 11287679 A JP11287679 A JP 11287679A JP 11287679 A JP11287679 A JP 11287679A JP S5638683 A JPS5638683 A JP S5638683A
- Authority
- JP
- Japan
- Prior art keywords
- line
- segment
- length
- memory
- broken
- 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
Landscapes
- Image Analysis (AREA)
Abstract
PURPOSE: To discriminate the type of line (solid line, broken line, and chain line), based on the distribution of the frequency of the length of line segment constituting the line.
CONSTITUTION: Figure 1 is stored in the video memory 3 with the photo electric converter 2. The solid line path recognizer 4 recognizes the number of end point of each segment, folded point and points, and the result is stored in the characteristic memory 5. The broken line path recognizer 6 obtains the segment connectable (near and in the same direction) to each segment, when the lines are broken and chain lines and stores the connection information to the memory 7. The line length measuring circuit 81 obtains the length of line of segment. The hystogram of the length of line is formed with the circuits 82, 84 and stored in the memory 83. The types of line can be discriminated at the circuit 85 from the characteristics that the solid line has the distribution of long line length, broken line has the distribution of shorted parts, and chain line has the double peak having the same height.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11287679A JPS5638683A (en) | 1979-09-05 | 1979-09-05 | Discriminating method of type of line in pattern recognizer |
| US06/181,774 US4428077A (en) | 1979-09-03 | 1980-08-27 | Line recognition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11287679A JPS5638683A (en) | 1979-09-05 | 1979-09-05 | Discriminating method of type of line in pattern recognizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5638683A true JPS5638683A (en) | 1981-04-13 |
| JPS6313227B2 JPS6313227B2 (en) | 1988-03-24 |
Family
ID=14597736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11287679A Granted JPS5638683A (en) | 1979-09-03 | 1979-09-05 | Discriminating method of type of line in pattern recognizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5638683A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139892A (en) * | 1984-12-12 | 1986-06-27 | Toshiba Corp | Vector conversion system for linear graphic |
| JPS61175880A (en) * | 1985-01-31 | 1986-08-07 | Matsushita Electric Ind Co Ltd | Broken line extracting device |
| JPS63231581A (en) * | 1987-03-20 | 1988-09-27 | Canon Inc | Frame line constituting device |
| JPH03250278A (en) * | 1990-02-28 | 1991-11-08 | Fuji Facom Corp | Table-formed document reader |
-
1979
- 1979-09-05 JP JP11287679A patent/JPS5638683A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139892A (en) * | 1984-12-12 | 1986-06-27 | Toshiba Corp | Vector conversion system for linear graphic |
| JPH0221630B2 (en) * | 1984-12-12 | 1990-05-15 | Tokyo Shibaura Electric Co | |
| JPS61175880A (en) * | 1985-01-31 | 1986-08-07 | Matsushita Electric Ind Co Ltd | Broken line extracting device |
| JPH0449148B2 (en) * | 1985-01-31 | 1992-08-10 | Matsushita Electric Ind Co Ltd | |
| JPS63231581A (en) * | 1987-03-20 | 1988-09-27 | Canon Inc | Frame line constituting device |
| JPH03250278A (en) * | 1990-02-28 | 1991-11-08 | Fuji Facom Corp | Table-formed document reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6313227B2 (en) | 1988-03-24 |
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