Identifying one- or two-dimensional bar codes via weighted image data combination
US9495572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2013 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1465
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for identifying a one- or two-dimensional barcode in input image data, the method comprising the steps of: obtaining first image data of a first image of the object, said first image being acquired using a first illumination wavelength; obtaining second image data of a second image of the object, said second image being acquired using a second illumination wavelength being different from said first illumination wavelength; calculating a weighting factor based on a statistical processing of pixel values of the first image data and pixel values of the second image data; and generating third image data by calculating a weighted combination using the pixel values of said first image data, the pixel values of said second image data, and said weighting factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.