System for locating and determining the orientation of bar codes in a two-dimensional image
US5296690A · kind A · utility
199Cited by
18References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1991 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Sep 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1456
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A bar code reader includes an image capture means for storing a two dimensional image in memory, which stored image may include a bar code symbol within the field of view of said image. The present bar code reader further includes method and apparatus for determining the location and orientation of said bar code symbol within the field of view of said image, and then filtering said located and oriented bar code symbol along an axis perpendicular to said detected orientation. Thereafter, the filtered bar code symbol is scanned and applied to a decoder to produce a decoded bar code output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.