Methods and arrangements for adaptation of barcode reading camera systems for digital watermark decoding
US10182170B1 · kind B1 · utility
2Cited by
5References
20Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 3, 2017 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | May 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Imagery captured by a point-of-sale scanner (e.g., in a supermarket) for purposes of barcode decoding, is contrast-enhanced preparatory to use for watermark decoding—despite the fact that such operation may sometimes result in contrast between certain pixels being diminished. A great variety of other features and arrangements are also detailed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.