truction. Based on visual informations, the system must select motions and view points in order to build a map of its own environment. An hierarchical decomposition of the pro-blem is proposed. The ˝rst step is dedicated to the object search in order to inventory all the objects of the scene. Our approach is based on a probabilistic description of the scene occupancy. Our search strategy consists in generating a sequence of observations such that all the probabilities will reach1everywhere an object is present and 0 elsewhere. The next step deals with the exploration of each particular object in order to improve its description. We present an object modeling as a mixture of stochastic and set membership models allo-wing to coarsely approxim...