Self-correction recognition method and device for valuable document recognition device
US10452941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Mar 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2253
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A self-correction recognition method and device for a valuable document recognition device is provided. The method includes: extracting a feature of a valuable document; determining whether the feature falls in a discriminant library of any preset category, and obtaining a substitutive centroid according to a feature centroid and the feature in a case that the feature falls in a discriminant library of any preset category; and updating the discriminant library of the category by replacing the feature centroid of the category with the substitutive centroid. The discriminant library is pre-constructed according to the feature centroid of the category, and the feature centroid is calculated from a feature of the category.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.