Methods and apparatus for dynamic correction of data for non-uniformity
US7834886B2 · kind B2 · utility
1Cited by
8References
21Claims
0Family size
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Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for dynamic correction of data for non-uniformity are disclosed. Feature data are extracted from input video data that include a subject shot against a backing area in a solid color. The feature data may describe characteristics of non-uniformity in input video data. A curve is generated based on the extracted feature data, and correction factors are formed based on the generated curve. At least one of the input video data and alpha data associated with the input video data is corrected based on the correction factors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.