Method and apparatus for scale independent cusp detection
US7146046B2 · kind B2 · utility
1Cited by
8References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Sep 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/457
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and a processor-implemented method are provided for determining a cusp within a stroke of electronic ink. Curvature at each of a plurality of points on the stroke is estimated. Based on the estimated curvature at each of the plurality of points, a neighborhood of the points where the cusp resides is identified. One of the points in the neighborhood of the points is determined to correspond to the cusp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.