Generating authentication image to verify a two-dimensional code offline
US10635959B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | May 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06037
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure describes technologies related to generating authentication image to verify a two-dimensional (2D) code offline. In some implementations, a 2D code is parsed to identify a plurality of black pixels and a plurality of white pixels. A target image is parsed to identify a plurality of black pixels and a plurality of white pixels. The plurality of black pixels and the plurality of white pixels of the images are converted to a first plurality of binary arrays and a second plurality of binary arrays based on a predetermined rule. At least a portion of the first plurality of binary arrays and a portion of the second plurality of binary arrays are compared, and an authentication image including a plurality of black pixels, a plurality of white pixels, and a plurality of transparent pixels is generated based on comparison results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.