Automatic background detection of scanned documents
US7058222B2 · kind B2 · utility
14Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2002 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Jul 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A background detection process that analyzes background information for the purpose of limiting the impact of intensity information obtained from non-document areas includes: identifying a first white peak from pixels within a first document region; identifying a second white peak from pixels within a second document region; determining if the first white peak was identified using image data from outside of the input document; and if so, identifying a third white peak from pixels within the first document region based on the second white peak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.