System and method of generating color correction matrix for an image sensor
US8300933B2 · kind B2 · utility
2Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jun 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of generating a color correction matrix (CCM) for an image sensor are disclosed. Quantum efficiency (QE) spectra of pixels of the image sensor illuminated by a physical light source are measured. Subsequently, color values of the image sensor and color values in a predetermined color space are determined according to the QE spectra and predetermined reference data essential for deriving the color values. Finally, the CCM for the image sensor is generated by applying a fitting algorithm on the color values of the image sensor and the color values in the predetermined color space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.