Form identification method
US7106904B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jan 6, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/412
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A form identification method which can identify forms without errors even if a form is inputted from a scanner in different direction or the form is enlarged/shrunk. A form registration method which enables change/modification of forms when form types are pre-registered. Inputted points as features are extracted from the form, modification of enlargement/shrinkage, rotation, or skew is made to the inputted points. Form types are identified based on minimum distances between the inputted point and pre-registered dictionary points. When registering a similar form type, warning can be displayed on the screen. In a system a dictionary registration station, a form identification station, and a form edit station are connected via a communication network. Each station operates in interlocking manner, identifies inputted forms, and registers them into a dictionary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.