JPS54103343A - Image position detector - Google Patents
Image position detectorInfo
- Publication number
- JPS54103343A JPS54103343A JP1026478A JP1026478A JPS54103343A JP S54103343 A JPS54103343 A JP S54103343A JP 1026478 A JP1026478 A JP 1026478A JP 1026478 A JP1026478 A JP 1026478A JP S54103343 A JPS54103343 A JP S54103343A
- Authority
- JP
- Japan
- Prior art keywords
- patterns
- images
- detection
- accuracy
- sensor
- 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
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Projection-Type Copiers In General (AREA)
- Holo Graphy (AREA)
Abstract
PURPOSE: To improve detection responsiveness and accuracy by detecting the spacial positions of images from correlations of two sets of random patterns.
CONSTITUTION: The image light through two-dimensional random patterns 13, 15 such as of grating form slits or the like of 1:1 in the ratio of the transparent part and non-transparent part corresponding to the image 12 such as of a microfilm or the like passes through both patterns 13, 15 only when the both patterns 13, 15 align and is then detected with a photo sensor 16. Hence, the detection signal ratio of the sensor 16 at the aligning of the both patterns 13, 15 and immediate therebefore increases, due to which the detection responsiveness and detection accuracy of the images improve. When a stepping motor 21 is controlled by the detection signal of the sensor 16, the images of the film 12 may be stopped in the specified position at high speed and high accuracy.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1026478A JPS54103343A (en) | 1978-01-31 | 1978-01-31 | Image position detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1026478A JPS54103343A (en) | 1978-01-31 | 1978-01-31 | Image position detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54103343A true JPS54103343A (en) | 1979-08-14 |
Family
ID=11745445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1026478A Pending JPS54103343A (en) | 1978-01-31 | 1978-01-31 | Image position detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54103343A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014139479A1 (en) * | 2013-03-15 | 2014-09-18 | Hiti Digital, Inc. | Methods for detecting an edge of a transparent material and detecting devices and systems for same |
-
1978
- 1978-01-31 JP JP1026478A patent/JPS54103343A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014139479A1 (en) * | 2013-03-15 | 2014-09-18 | Hiti Digital, Inc. | Methods for detecting an edge of a transparent material and detecting devices and systems for same |
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