In-scene balancing of remotely sensed and aerial multiband imagery
US8750611B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for an image processing device to receive image data from a remotely positioned sensor. Spectral bands within the image data are equalized. High and low resolution images are obtained from the equalized image and are used to ultimately generate a color separation space. The color separation space is used to determine balance positions or spatial locations on the axes of the color separation space. The balance positions are converted to a red-green-blue (RGB) triplet that is used to calculate band or channel balance gains. The channel balance gains are then applied to an original image obtained from the image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.