|
PROCESS |
| Processing workflows for thermal and fluorescence sensors |
| Contact |
Els KNAEPS |
Start (End) Date |
01/12/2010 (30/11/2014) |
| Consortium |
2 partners |
Project Coordination |
VITO |
| Website |
- |
Related Projects |
- |
| Keywords |
thermal, fluorescence, hyperspectral |
Project Objectives
In the framework of the MEDUSA and APEX sensor development projects and in the framework of the yearly hyperspectral airborne campaigns VITO has developed a processing chain for airborne data, also called CDPC or Central Data Processing Centre. Currently the CDPC is able to process data from video, hyperspectral pushbroom and whiskbroom (i.e. APEX, CASI, AISA, Hymap, Hyspex) and frame cameras. The processing chain is continuously being updated and extended with new algorithms. In the last years algorithms have been added to automatically derive visibility and water vapor and correct for target BRDF. In the upcoming years the goal is to include level 3 products which are much more attractive to the user community. To be able to provide a large variety of quality datasets to the Belgian and international user community VITO would like to extend the current processing chain with two new sensors, being a thermal and fluorescence sensor.
Methodology
The project starts with a description and review of the metadata and data formats of the new sensors and a review and definition of the archiving format HDF5. Existing database will be extended with new DEMs, GIS layers and new projection systems will be included.
Then Jülich and CRP-GL will make a selection of algorithmic components. There is a variety of algorithmic components available in the current CDPC. For both new sensors a selection will be made and if needed new algorithms can be added.
An uncertainty propagation using Monte Carlo simulations will further identify the sources of variance and thus the weakest links in the processing chain. A quality control document will be written that describes the procedures that are applicable during the different stages of an airborne remote sensing mission, from reception of the datasets by VITO until delivery of the final results to the customer.
A WWW interface is available to browse the database and submit requests for e.g. atmospheric correction. This interface will be accessible to the data providers and allows them to start and follow up the processing. Each data provider will have its own customized interface. The existing GUI elements will be reviewed.
The processing chain should be able to process a large data volume. In the summer period APEX, digital camera, thermal, and fluorescence data can be acquired in the same period and they all have to be processed within a specified time frame. The CDPC will therefore be put through a severe stress test by simulating non-stop airborne missions with different instruments.
Finally the workflow will be demonstrated to both data providers to get some necessary feedback. Some of the above elements will be reviewed if necessary.
(Expected) Results
Extended processing chain.
VITO Contribution
Coordination, implementation.
Partners
Forschungszentrum Jülich GmbH (Germany)
Le Centre de Recherche Public - Gabriel Lippmann (Luxembourg)
