Method and system arranged for filtering an image
US8526756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2009 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | May 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and a system, the system includes: a memory unit, an image region definer, a spectral analyzer, a determination module, and an image processor. The spectral analyzer is arranged to divide a frequency spectrum of each image region into at least three image region frequency range components (IRFRCs); and calculate an energy level for each IRFRC. The comparator configured to compare the energy level of each IRFRC to at least one frequency region threshold to provide a comparison result for each IRFRC; wherein each frequency region threshold is calculated based on an intensity parameter of an image section and based on an energy parameter of at least one reference image section; a determination module arranged to determine a processing operation for each IRFRC, based on a comparison result associated with the IRFRC and based on a configurable decision rule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.