Efficient document boundary determination
US6987880B2 · kind B2 · utility
6Cited by
32References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2001 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Apr 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/1478
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An imaging system includes an imaging sensing device sensing an object having a first background color and a backing in opposing relationship with the object having a second background color which is substantially the same as the first background color. The imaging system determines at least one general bounding region of the object based upon a shadow cast onto backing by the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.