Multi-binarization image processing
US9965871B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Dec 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F18/24323
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image encoded with character information can be created by binarizing an input image followed by connected component labeling, and then repeating the binarization and connected component labeling on an inverted version of the input image. This results in identification of connected components. Related connected components are arranged in a family tree in which successive generations of the connected components alternate between two tree layer classifications. One of the tree layer classifications is selected based on whether certain connected components define characters. A label image is created which includes labels for the connected components except for the connected components in the selected tree layer classification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.