| Title | Spectral Unmixing Applied to Vegetated Environments in the Canadian Arctic for Mineral Mapping |
| Download | Downloads (Preprint) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Staenz, K; Nadeau, C; Secker, J; Budkewitsch, P |
| Source | XIXth ISPRS Congress and Exhibition, Amsterdam, July 15-23; 2000., https://doi.org/10.4095/219649  Open Access |
| Year | 2000 |
| Alt Series | Earth Sciences Sector, Contribution Series 20042847 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Released | 2000 01 01 |
| Abstract | This paper shows preliminary results of mineral mapping under moderate tundra vegetation cover in an arctic environment. The data analysis including recalibration, atmospheric correction, automatic
endmember extraction, and constrained linear spectral unmixing was applied to two hyperspectral image cubes acquired with the Probe-1 sensor over a test site in the Povungnituk Range in Northern Quebec, Canada. The mapping results indicate that
different rock units (gabbro, basalt) could be identified successfully. However, the analysis also shows that the following factors impede the extraction of rock units: Lichen cover masks the reflectance of rock units, and sensor viewing angle and
terrain influence the spectral signature (bidirectional reflectance). Ground reference information such as reference spectra of different target types, acquired during the data collection, were used to validate the unmixing results. |
| GEOSCAN ID | 219649 |
|
|