Embedded variable line patterns for images
US10929712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Oct 31, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/95
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In some implementations, a system is capable of generating identifications that include distinctive line patterns corresponding to different portions of secure customer information. Data indicating an input image, and a dithering matrix representing a two-dimensional array of pixel values is obtained. Pixel values of pixels included in the input image are transformed using the dithering matrix. For each pixel within the input image, the transformation includes identifying a particular pixel value within the dithering matrix that represents a particular pixel within the input image, and adjusting an intensity value of the particular pixel based on attributes of the dithering matrix. A transformed image is generated based on the transformation and then provided for output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.