Method and apparatus for effecting background suppression of image data
US5093871A · kind A · utility
22Cited by
18References
10Claims
0Family size
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Key dates
| Filing date | Oct 10, 1989 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T1/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for processing digitized images which contain useful image formation data and background features a background supression scheme used to convert each pixel value to preselected values in a smaller range in order to facilitate data processing such as compression and scaling. Provision is made for generating an adaptive or dynamic threshold value, as well as a much more stable background reference threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.