International audienceDetecting hedgerow is discussed in this article. A detection system in two stages is proposed. It is based on using both the spatial information and the spectral information. First, the woody elements are detected using the spectral information only. Then the local orientation of each pixel is computed by using directional filters. Experiment results on an image acquired by the Pleiades satellite show that the dection of hedgerows is possible for that kind of images over large areas.La détection des haies à partir d’images Pléiades est abordée dans cet article. Un système de détection en deux étapes est proposé. Il est basé sur l’utilisation conjointe de l’information spatiale et de l’information spectrale. Tout d’abor...