Device and method for detecting and/or recognizing markings in/at/on transparent marking carriers
US8118225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10732
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for detecting and/or recognizing markings, in particular for manual handling, comprising a camera for recording a marking and at least one illumination device for illuminating a marking, characterized in that, for detecting and/or recognizing markings (3) on/at/in transparent marking carriers (4), in particular having reflectively polished surfaces, the at least one illumination device (2) is arranged at a distance from the optical axis (A) of the camera (1) in such a way that the light reflection (5) generated by the at least one illumination device (2) at the surface of the transparent marking carrier (4) is arranged at least alongside the marking represented in the camera image, preferably outside the detection region of the camera (1). The invention furthermore relates to a method in which, for detecting and/or recognizing markings (3) on/at/in transparent marking carriers (4), in particular having reflectively polished surfaces, a marking is illuminated by at least one illumination device (2) spaced apart from the optical axis (A) of the camera (1) in such a way that the marking appears in inverted fashion in the camera image, in particular as…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.