Les images à très haute résolution, une source d'information géographique en milieu urbain?

Abstract

The geographic information sector has been a fast-growing economic sector since the early 1980s. With Very High Resolution (VHR) imagery (below 5 m), the supply of image data has been multiplied and end-users have to choose the most appropriate information for their needs. This article presents the results of a survey conducted in France and several other European countries to assess the role and place of imagery in urban applications, to identify the needs of urban users and to ascertain the usefulness of VHR images. This work has been compared to an American survey aimed at identifying potential uses for VHR imagery.