Adaptive filtering of visual image using auxiliary image information
US7072525B1 · kind B1 · utility
62Cited by
6References
35Claims
0Family size
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Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An adaptive filter is used to filter a target version of a visual image that is produced by processing an original version of the visual image, the characteristics of the adaptive filter being determined in accordance with one or more characteristics of the original version of the visual image. The orientation and/or strength of filtering of the adaptive filter can be adjusted based on local properties of the original image, which can enable the adaptive filter to avoid introducing blurring across true edges in an image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.