String extraction method for image based on multiple stroke width patterns matching
US7203363B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jun 27, 2003 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jun 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A string extraction method for an image based on multiple stroke width patterns matching is provided. The string extraction method includes matching each possible stroke width pattern with an input image for obtaining the similarities between the width patterns and each pixel, wherein the integrated similarity between each pixel and the stroke width patterns is namely an integrated computing result of all similarities between the pixel and all stroke width patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.