Image registration system for video camera
US4121245A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Apr 11, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K17/0016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image registration system for a video camera is used in an optical information retrieval system in a manner to accurately register a pre-recorded image relative to the target of a T.V. camera. A light responsivearray defines the outline of an area corresponding in size and shape to that of the target and the image is simultaneously projected upon both the target and the light responsive array.In the event that the image is off-center with respect to the target, the light responsive elements serve to generate control signals for operating servo motors connected to mirrors for readjusting the light path along each of two predetermined axes. This movement causes the image (which is either transmitted to a monitor or which is later scanned from the target and recorded on a magnetic recording medium or the like) to be precisely centered or otherwise disposed at a predetermined position. According to a second embodiment the light responsive means has been disposed within the monitor whereby upon projection of the image at the monitor is sensed by the light responsive means. If the image is off-center or improperly oriented on the screen, control signals are generated for adjusting the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.