Lookup NU author(s): Dr Henny Mills,
Dr Mark Cutler,
Dr David Fairbairn
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Upland vegetation represents an important resource that requires frequent monitoring. However, the heterogeneous nature of upland vegetation and lack of ground data require classification techniques that have a high degree of generalization ability. This study investigates the use of artificial neural networks as a means of mapping upland vegetation from remotely sensed data. First, the optimum size of support to map upland vegetation was estimated as being less than 4 m, which suggested that soft classification techniques and high spatial resolution IKONOS imagery were required. The use of high spatial resolution imagery for regional-scale areas has introduced new challenges to the remote sensing community, such as using limited ground data and mapping land-cover dynamics and variation over large areas. This work then investigated the utility of artificial neural networks (ANN) for regional-scale upland vegetation from IKONOS imagery using limited ground data and to map unseen data from remote geographical locations. A Multiple Layer Perceptron was trained with pixels from an IKONOS image using early stopping; however, despite high classification accuracies when calculated for pixels from an area where training pixels were extracted, the networks did not produce high accuracies when applied to unseen data from a remote area.
Author(s): Mills H, Cutler MEJ, Fairbairn D
Publication type: Article
Publication status: Published
Journal: International Journal of Remote Sensing
Print publication date: 01/06/2006
ISSN (print): 0143-1161
ISSN (electronic): 1366-5901
Publisher: Taylor & Francis Ltd.
Altmetrics provided by Altmetric