Method for detecting inverted text images on a digital scanning device
US6574375B1 · kind B1 · utility
84Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1996 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Mar 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for detecting proper page orientation of a scanned document image. The document is subdivided into a series of word boxes. The number of ascending and descending text characters within the word can then be compared with the number expected for a properly oriented document to verify page orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.