Systems and methods for illumination correction of an image
US9008457B2 · kind B2 · utility
33Cited by
13References
20Claims
0Family size
Assignee
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Key dates
| Filing date | May 31, 2011 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/94
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An RGB color image and an infrared intensity image of a live video are received. The RGB color image is converted to a colorspace image comprising a channel corresponding to a brightness value. Each pixel of the converted colorspace image is evaluated to determine whether the brightness channel of the pixel exceeds a threshold value. If the brightness channel of the pixel exceeds the threshold value, the infrared intensity value of a corresponding pixel from the infrared intensity image is mixed into the pixel's channel value that corresponds to brightness. The converted colorspace image is converted back to an RGB color image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.