JPS5533220A - Detection system for deviation value - Google Patents
Detection system for deviation valueInfo
- Publication number
- JPS5533220A JPS5533220A JP10562278A JP10562278A JPS5533220A JP S5533220 A JPS5533220 A JP S5533220A JP 10562278 A JP10562278 A JP 10562278A JP 10562278 A JP10562278 A JP 10562278A JP S5533220 A JPS5533220 A JP S5533220A
- Authority
- JP
- Japan
- Prior art keywords
- original
- line
- deviation
- straight line
- detecting
- 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 Input (AREA)
- Image Input (AREA)
- Facsimiles In General (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
PURPOSE: To make corrections as to rotational deviation and parallel movement in scanning on an origitnal, by detecting a deviation value from a fixed position on the original by making use of a reference line.
CONSTITUTION: By making an auxiliary scan in a direction perpendicular to reference line 4S, the number na of picture elements between points A0 and A where an "a"-th scanning line crosses reference line 4S and straight line 4 on the original is obtained. In the same way, the number nb of picture elements between intersections B0 and B is also obtained as to a "a+N"-th scanning line. Consequently, turning angle ϕ of the original can be found by expression tan ϕ=(na-nb)/n0. Then, the original with its rotational deviation corrected is placed in parallel to reference lines 3S and 4S. Therefore, X-directional deviation nx can be obtained by detecting straight line 4, and y-directional deviation ny by detecting straight line 3. The parallel movement of the original is corrected according to this.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10562278A JPS5533220A (en) | 1978-08-31 | 1978-08-31 | Detection system for deviation value |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10562278A JPS5533220A (en) | 1978-08-31 | 1978-08-31 | Detection system for deviation value |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5533220A true JPS5533220A (en) | 1980-03-08 |
JPS6311826B2 JPS6311826B2 (en) | 1988-03-16 |
Family
ID=14412583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10562278A Granted JPS5533220A (en) | 1978-08-31 | 1978-08-31 | Detection system for deviation value |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5533220A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5743279A (en) * | 1980-08-29 | 1982-03-11 | Fujitsu Ltd | Method for detecting position of x-y symmetrical body |
JPS63158676A (en) * | 1986-12-23 | 1988-07-01 | Matsushita Electric Ind Co Ltd | Area extracting device |
-
1978
- 1978-08-31 JP JP10562278A patent/JPS5533220A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5743279A (en) * | 1980-08-29 | 1982-03-11 | Fujitsu Ltd | Method for detecting position of x-y symmetrical body |
JPS63158676A (en) * | 1986-12-23 | 1988-07-01 | Matsushita Electric Ind Co Ltd | Area extracting device |
Also Published As
Publication number | Publication date |
---|---|
JPS6311826B2 (en) | 1988-03-16 |
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