Method and system for document image feature extraction
US6006226A · kind A · utility
49Cited by
19References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1997 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A set of image feature extraction techniques to locate and group documents based upon appearance in a database management system. The system automatically determines visual characteristics of document images and collects documents together according to the relative similarity of their document images. The system is operable on both binary and grayscale images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.