Apparatus for performing character segmentation using slant histograms
US5692069A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Mar 17, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for performing character segmentation of digitized handwritten character data utilizes a vertical histogram processing unit to identify primary cuts to be made in the character data based on a vertical histogram. Character blocks generated after the primary cuts are analyzed to determine if the character blocks contain multiple characters. A slant histogram processing unit then generates a set of slant histograms for each of the character blocks to identify minima indicative of segmentation points. The slant histograms are evaluated by an evaluation processing unit to determine segmentation points for kerned characters based on zero-value minima. After segmenting the kerned characters to generated new character blocks, the evaluation processing unit evaluates the minima in accordance with a set of predetermined rules to identify further segmentation points for touching characters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.