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Consider the problem of inverse scattering of time-harmonic point sourcesfrom an infinite, penetrable rough interface with bounded obstacles buried inthe lower half-space, where the interface is assumed to be a local perturbationof a planar surface. A novel version of the sampling method is proposed tosimultaneously reconstruct the local perturbation of the rough interface andburied obstacles by constructing a modified near-field equation associated witha special rough surface, yielding a fast imaging algorithm. Numerical examplesare presented to illustrate the effectiveness of the inversion algorithm.

Near-field imaging of a locally rough interface and buried obstacles with the linear sampling method