Device for automatically aligning a production copy image with a reference copy image in a printing press control system
US5812705A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jun 2, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30144
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device to align images for a printing press control system comprising, a device for capturing a reference image containing one or more image planes from a reference copy, a device for converting the reference image into a monochrome reference image, a device for capturing a production image containing one or more image planes from a production copy, a device for converting the production image into a monochrome production image, a device for defining at least one object model in the monochrome reference image, a device for identifying the position of at least one of the object models in the production image, a device for defining a transfer function which maps the position of the models in said monochrome production image to the position of the models in said monochrome reference image, and a device for applying the transfer function to each of the image planes of the production image, resulting in its alignment to the reference image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.