Method and portable apparatus for recognizing barcodes
US8596540B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2010 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Mar 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1491
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for optical recording of a linear barcode pattern and determination of a symbol sequence as defined by the barcode pattern from a blurred raw image and includes the following steps: taking a raw image of the barcode pattern, preprocessing the raw image to generate a series of output patterns, comparing the output pattern with stored reference patterns, wherein the reference patterns correspond to blurred images of sharp nominal patterns and each reference pattern is provided with at least one symbol, determining for each of the output patterns the reference pattern which most closely resembles the output pattern outputting, transmitting or storing the symbols corresponding to the determined reference pattern and following the sequence of output patterns, as a symbol sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.