Method for authenticating an image capture of a three-dimensional entity
US9667946B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of authenticating the capture of an image of a three-dimensional entity is provided, including the steps of generating a series of images of the entity with the help of an optical sensor, associating each image with information representative of the position of the sensor at the moment at which it generated the image, and determining whether there is consistency between two images of the series by verifying whether there is consistency between an apparent movement of the optical sensor as determined by comparing characteristic points visible in the two images and an estimated real movement of the optical sensor as determined by comparing information representative of three-dimensional positions of the optical sensor at the moments when it generated the two images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.