Welkom op het expertplatform!
Dit platform verschaft informatie en kennis omtrent de WL expertisedomeinen 'hydraulica en sediment', 'havens en waterwegen', 'waterbouwkundige constructies', 'waterbeheer' en 'kustbescherming' - gaande van WL medewerkers met hun expertise, het curriculum van deze instelling, tot publicaties, projecten, data (op termijn) en evenementen waarin het WL betrokken is.
Het WL onderschrijft het belang van "open access" voor de ontsluiting van haar onderzoeksresultaten. Lees er meer over in ons openaccessbeleid.
| one publication added to basket [125765] |
Sediment facies classification of a sandy shoreline by means of airborne imaging spectroscopy
Deronde, B.; Kempeneers, P.; Houthuys, R.; Henriet, J.-P.; Van Lancker, V. (2008). Sediment facies classification of a sandy shoreline by means of airborne imaging spectroscopy. Int. J. Remote Sens. 29(15): 4463-4477. https://dx.doi.org/10.1080/01431160801891804
In: International Journal of Remote Sensing. Taylor & Francis: London. ISSN 0143-1161; e-ISSN 1366-5901
|  |
| Auteurs | | Top |
- Deronde, B.
- Kempeneers, P.
- Houthuys, R.
|
- Henriet, J.-P.
- Van Lancker, V.
|
|
| Abstract |
Airborne imaging spectroscopy data (AISA Eagle and HyMap) were applied to classify the sediments of a sandy beach in seven sand type classes. On the AISA-Eagle data, several classification strategies were tried out and compared with each other. The best classification results were obtained applying a linear discriminant classifier (LDC) in combination with feature selection based on sequential floating forward search (SFFS). The statistical LDC was used in a multiple binary approach. In the first step, the original bands were used in the classification, but transformation of the bands to wavelet coefficients enhanced the accuracy obtained. The combination of LDC with SFFS resulted in an overall accuracy of 82% (using three wavelet coefficients). Replacing the LDC with the non-statistical SAM algorithm reduced the overall accuracy to 74% (using all bands or wavelet coefficients). When applying LDC, the optimal number of bands/wavelet coefficients to be used was defined: using more than two bands or three wavelet coefficients did not result in a higher classification accuracy. Finally, the HyMap data, featuring 126 bands in the VNIR-SWIR range, were used to demonstrate that the VNIR range outperforms the SWIR range for this application. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
