Method and system for determining whether a barcode is genuine using a deviation from an idealized grid
US10552848B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2019 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/95
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for determining whether a candidate barcode is genuine involves acquiring an image of an original barcode, wherein the original barcode includes a plurality of modules; determining, from the image of the original barcode, a deviation of a position of at least one of the plurality of modules of the original barcode from an idealized grid; encoding the deviation as signature data for the original barcode; storing the signature data for the original barcode on a storage device; acquiring an image of the candidate barcode, wherein the candidate barcode includes a plurality of modules; determining, from the image of the candidate barcode, a deviation of a position of at least one of the plurality of modules of the candidate barcode from the idealized grid; retrieving the signature data for the original barcode from the storage device; comparing the signature data for the original barcode with signature data for the candidate barcode; and making a determination that the candidate barcode is genuine or not genuine based on a result of the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.