Panchromatic modulation of multispectral imagery
US7936949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2006 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Jun 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and system for creating a fused image from an image pair. The method includes obtaining (204) image data defining a first image of a panchromatic image type and a second image of a multi-spectral image type. The first image has a first spatial resolution and a first spectral resolution. The second image has a second spatial resolution which is lower than the first spatial resolution and a second spectral resolution higher than the first spectral resolution. The first image and the second image are fused (216) to initialize a fused image having the first spatial resolution and the second spectral resolution. A point spread function and a set of spectral weights are used to determine scaling factors for scaling (218) radiance value of pixels defining the fused image in accordance with radiance value of pixels forming the first image and the second image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.