Mahamadou Idrissa

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The aim of the ETATS project (“Système d’Evaluation du Taux d’Actualisation de données topogéographiques par Télédétection Spatiale”) is to estimate the degree of changes in the built-up area and in the communication network for the Belgian territory, using satellite images and the National Geographic Institute database. SPOT5 images have been used for this(More)
Change detection of remotely sensed images is a particularly challenging task when the available data come from different sensors. Indeed, many change indicators are based on radiometry measures, operating on their differences or ratios, that are no longer reliable when the data have been acquired by different instruments. For this reason, it is interesting(More)
This paper presents a supervised classification method applied to building change detection in VHR aerial images. Multi-spectral stereo pairs of 0.3m resolution have been processed to derive elevation, vegetation index and colour features. These features help filling a 5-dimensional histogram whose bins finally hold the ratio of built-up and non built-up(More)
PARADIS stands for a Prototype for Assisting Rational Activities in Demining using Images from Satellites. The aim of this project is to improve the planning of humanitarian demining campaigns using Remote Sensing data and GIS techniques. In this context, a user interface has been developed in ArcView GIS to integrate the tools needed for the management of(More)
An automatic system to estimate the urbanization changes on the Belgian territory, using SPOT5 images and the National Geographic Institute vectorial database is proposed. The images and the vectorial data are first co-registered. Then, the vectorial database is projected and dilated to produce a mask representing the old status of the database. On the(More)
The surface classification of heterogeneous urban areas can be refined using the integration of spectral and 3D information. However, pixel-classification based fusion requires semi-pixel geo-registration accuracy. In this paper the 3D information is obtained from the hyperspectral data set itself. This study presents an adaptation of optimized MRF based(More)