Method of locating imaged bar codes for an imaging-based bar code reader
US7261238B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2006 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1093
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of locating an imaged bar code in a captured image frame for an imaging-based bar code reader. The steps of the method include: a) determining a mode of operation of the reader; b) if the reader is being operated in a hand-held mode of operation, utilizing a first method of locating an imaged bar code; and c) if the reader is being operated in a fixed position mode, utilizing a second method of locating an imaged bar code. The first method of locating an imaged bar code includes searching for an imaged bar code commencing at a starting location near a geographic center of the selected image frame. The second method of locating an imaged bar code includes determining a location corresponding to movement in a selected image frame of the series of image frames and searching for an imaged bar code commencing at the movement location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.