Imaging device and method for validating a document with selectable single side illumination
US9038907B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved document scanning device and a scanning method for checking the transparency and thickness of an identification document. In a preferred embodiment, any one surface of the document is illuminated by the illumination source facing the said surface and the opposite surface of the document is captured by the camera. The amount of light that passes through the illuminated surface of the document is measured and contrasted with the amount of light that passes through the same surface of a reference or original document. The scanning method is also capable of validating an identification document by detecting and authenticating any laser image imprinted on such document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.