Systems and methods for decoding an image to determine a digital identifier
US8023746B2 · kind B2 · utility
16Cited by
36References
70Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2005 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Sep 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K17/0022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for decoding an image of a pattern on an object to determine a digital identifier. An image of a pattern on the object is received. The image includes a plurality of pixels, each of the pixels having an optical attribute with a corresponding value. The image is divided into a plurality of tiles, each of the tiles containing a contiguous plurality of the pixels of the image. A digital bit is assigned to each of the tiles based on the values of the optical attribute of the pixels in the tile. A digital identifier is determined based on the digital bits assigned to the tiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.