JPS55159281A - Pick up system for characteristics of curve - Google Patents
Pick up system for characteristics of curveInfo
- Publication number
- JPS55159281A JPS55159281A JP6778679A JP6778679A JPS55159281A JP S55159281 A JPS55159281 A JP S55159281A JP 6778679 A JP6778679 A JP 6778679A JP 6778679 A JP6778679 A JP 6778679A JP S55159281 A JPS55159281 A JP S55159281A
- Authority
- JP
- Japan
- Prior art keywords
- line
- curve
- circuit
- character
- picture
- 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
- Character Discrimination (AREA)
Abstract
PURPOSE: To enable to discriminate the character easily by detecting the characteristics of a curve. by detecting that the straight line part of an input character is a straight line, or a curve having left or right curvature, from the difference of each X coordinate of the center point of picked up character linear part and picture middle point.
CONSTITUTION: Picture information binarized white and black is stored in the picture memory 2, and when the control circuit 5 designates the area and the detection of line is instructed to the line detection circuit 2, the circuit 2 detects the line tying the selected two points on the profile line of the linear part of the input character, e.g., PS, PE. Based on the line PS, PE detected, the middle point detection circuit 3 obtains the X coordinate of the center point PC, the picture middle point detection circuit 4 obtains the picture middle point PD, and the comparison circuit obtains the difference of X coordinate between the points PC and PD, and the judgement circuit 7 judges the line whether it is a straight line or a curve having its curvature at left or right. Thus, the characteristics of the curve picked up is detected and the character can easily be discriminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54067786A JPS5816501B2 (en) | 1979-05-31 | 1979-05-31 | Curve feature extraction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54067786A JPS5816501B2 (en) | 1979-05-31 | 1979-05-31 | Curve feature extraction method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55159281A true JPS55159281A (en) | 1980-12-11 |
JPS5816501B2 JPS5816501B2 (en) | 1983-03-31 |
Family
ID=13354980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54067786A Expired JPS5816501B2 (en) | 1979-05-31 | 1979-05-31 | Curve feature extraction method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5816501B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132337A (en) * | 1974-07-16 | 1976-03-18 | Cables De Lyon Geoffroy Delore | |
JPS534774A (en) * | 1976-07-02 | 1978-01-17 | Nitto Boseki Co Ltd | Apparatus for regeneration of absorption solution in wet hydrogen sulfide-removal unit |
JPS5341136A (en) * | 1976-09-28 | 1978-04-14 | Agency Of Ind Science & Technol | Pattern reading system |
-
1979
- 1979-05-31 JP JP54067786A patent/JPS5816501B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132337A (en) * | 1974-07-16 | 1976-03-18 | Cables De Lyon Geoffroy Delore | |
JPS534774A (en) * | 1976-07-02 | 1978-01-17 | Nitto Boseki Co Ltd | Apparatus for regeneration of absorption solution in wet hydrogen sulfide-removal unit |
JPS5341136A (en) * | 1976-09-28 | 1978-04-14 | Agency Of Ind Science & Technol | Pattern reading system |
Also Published As
Publication number | Publication date |
---|---|
JPS5816501B2 (en) | 1983-03-31 |
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