Method and system for determining positions on a document
US6903726B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/245
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention comprises an information carrier on which the position of a measuring point (37, 41) may be determined using a mobile readout device, as well as an attendant method of determining a position wherein the information carrier features a surface onto which a visible primary information has been applied, in the manner of a book or a geographic map, wherein at least one machine-readable pattern has been printed on the surface, said pattern coding a position information, which upon bringing to bear methods of image analysis and of local sampling of parts (36, 40) of the surface, will allow a determination of position for a measurement point (37, 41) and wherein the pattern coding the position information is transparent in such a way that the primary information on the surface remains visible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.