Spatially-varying spectral response calibration data
US8976240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2009 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Mar 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and other embodiments associated with producing spatially varying spectral response calibration data are described. One example method includes controlling a digital camera to capture characteristic data arrays from light sensors in the digital camera in response to the digital camera being exposed to light stimuli from a multi-spectral reference display. The data arrays will be acquired multiple times at multiple locations in multiple stimuli provided from the multi-spectral reference display. The method also includes controlling a calibration logic to manipulate characteristic data arrays to produce spatially varying spectral response calibration data as a function of using characteristic data arrays and known wavelengths of the light in light stimuli. The method may also include providing the spatially varying spectral response calibration data to a downstream consumer (e.g., correction process, quality control process), displaying the data, or storing the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.