Extracting a document page image from a electronically scanned image having a non-uniform background content
US10893167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2016 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Feb 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A technique includes acquiring data representing a first image produced by electronically scanning a page against a background. The first image contains a non-uniform background content due at least in part to a variation introduced by the background being non-uniform. The technique includes extracting an image of the page from the first image, wherein the extraction includes characterizing the background content of the first image; identifying candidate pixels associated with the page based at least in part on the characterized background content; and based at least in part on the identified candidate pixels and a model for a boundary of the page, determining the boundary of the page.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.