Estimating blur degradation of an image using specular highlights
US8891896B2 · kind B2 · utility
2Cited by
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19Claims
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Key dates
| Filing date | Jan 22, 2009 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Jan 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30168
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus (70) is provided for estimating blur degradation of an image (75) that includes a specular highlight. A specular highlight in the image is first identified (77), for example with user assistance. A blur kernel is then derived by extracting (78A) the identified specular highlight as foreground from the image (75) and using the extracted foreground as the blur kernel (78C). The image (75) can then be deblurred by deconvolution (79) with the derived blur kernel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.