Method and apparatus for automatic alignment of front and rear scanning cameras
US5249069A · kind A · utility
6Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Feb 11, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04793
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for automatic lateral alignment of front and rear images in a two sided scanning system. A line store is used for each camera to capture image data from a calibration target. A control processor then uses this image data to compute offset values which get stored for future use. The offset is then loaded into a hardware cropping circuit to correct the camera alignment in real time. Difficult manual alignment procedures are thus eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.