Character segmentation technique with integrated word search for handwriting recognition
US5917941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1995 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Aug 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2276
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
After each complete stroke in a handwriting recognition process, a hypothesis is generated whether a word break is present between the previous stroke and the new stroke. This hypothesis is weighted with a probability of a word-break occurring between the strokes. This probability is determined from the geometrical relationships between characters. Subsequently, a word search is carried out on the basis of these weighted hypotheses, to identity the most likely candidates for the words represented by the written strokes. A user interface is provided that offers the user a limited list of alternative word recognitions for a group of characters. These recognitions undergo segmentation filtering, in accordance with the word breaks of the selected hypotheses, to present the user with only those alternatives having the same groupings of strokes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.