A boundary approach for set inversion

In the paper, we present a new interval-based set inversion algorithm which takes into account continuity of problem. case where Y to be inverted has some volume, show that inverting boundary ∂Y is sufficient reconstruct preimage X=f−1(Y). The separates domain f two regions : one inside X and outside. To detect part or outside, can retro-propagate information coming from at negligible cost. efficiency approach illustrated on localization