Résumé
Linear digital signal processing consists in convo- luting the input sampled signal with the discrete version of the impulse response of a filter designed by an expert. More than often, a unique impulse re- sponse does not represent the complete knowledge of the expert who should have proposed more than one appropriate filter. In a recent paper, we have proposed an extension of the finite impulse response filtering that able to represent the fact that the fil- ter is imprecisely known. This extension leads to compute an interval-valued filtered signal. In this paper, we propose a natural follow-up of this work by considering interval-valued input signals and re- placing the Choquet integral by the Šipoš integral.