LAND-USE INVENTORY AND MAPPING IN A MOUNTAINOUS AREA - THE ARDECHE EXPERIMENT

The paper is a review and discussion of the work done on the Ardeche test site by using TM data. The Ardeche is a mountainous and strongly dissected area with very small fields, and multitemporal processing is essential in order to reach sufficient classification accuracy. This necessitated the following developments: high-quality image-registration integrating altitude information, image-based radiometric calibration, spatial zoning before classification, and post-classification sorting. Monotemporal results are shown for the complete area together with multi-temporal results for a part of the area. A multiband multi-temporal segmentation method is presented as preparation for segment-wise classification.