Method and apparatus for reading a surface coded pattern
US8300941B2 · kind B2 · utility
1Cited by
1References
19Claims
0Family size
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Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Aug 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/19
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of determining a regular grid pattern from a surface coded pattern that comprises the regular grid pattern interleaved with a further data carrying pattern wherein the surface coded pattern is subject to perspective distortion, the method comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.