Spectral calibration of image pairs using atmospheric characterization
US8094960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2008 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Nov 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/194
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system (100) for processing remotely acquired imagery is provided. The system (100) includes a storage element for receiving imagery data defining a first image of a panchromatic image type using a sensor characterized by a panchromatic spectral response curve and a second image of a multi-spectral image type using at least one other sensor characterized by a plurality of multi-spectral response curves associated with a plurality of optical bands. The first image has a first spatial resolution and a first spectral resolution. The second image has a second spatial resolution lower than the first spatial resolution and a second spectral resolution higher than that first spectral resolution. The system (100) also includes a processing element configured for deriving a radiation transfer model based on meta-data associated with one of the first and the second image and for determining a set of spectral weights for down-sampling the second image to the first spectral resolution based on the radiation transfer model and the panchromatic and the multi-spectral response curves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.