Method and apparatus for producing calibration data for a digital camera
US7151560B2 · kind B2 · utility
20Cited by
16References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Jul 28, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Producing calibration data (to remove vignetting, e.g., color-dependent vignetting) for a digital camera includes: arranging, in front of the camera, a white reference surface that is to be imaged; capturing, via the camera, a characteristic array of data corresponding to an image of the reference surface for each color that the camera can image; and manipulating each characteristic array to reduce a total amount of data representing the reference image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.