System and method for combining color information with spatial information in multispectral images
US9020256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20221
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing system combines higher-resolution panchromatic images and lower resolution multispectral images using a hyperspherical color space pan-sharpening technique. By converting the multispectral images into a hyperspherical color space, the intensities of the multispectral images can be intensity matched to the intensities of the panchromatic image and then retransformed back to the original color space. The intensity matching can utilize a number of techniques, including, but not limited to, direct substitution of the intensities of the panchromatic image for the intensities of the multispectral images, modification of the intensities of the multispectral images based on predefined statistical models and modification of the intensities of the multispectral images based on dynamically generated statistical models and a selected sharpening parameter β.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.