Single-pixel imaging interferometer based on the synthesis of spatial coherence

In this study, an interferometric method with conventional optical components without pixelated devices for the single-pixel imaging of a spatially incoherent light source is proposed. The tilting mirror performs linear phase modulation to extract each spatial frequency component from the object wave. The intensity at each modulation is detected sequentially to synthesize the spatial coherence such that the Fourier transform computation reconstructs the object image. Experimental results are provided to confirm that interferometric single-pixel imaging enables reconstruction with spatial resolution determined by the relation between the spatial frequency and tilt of the mirrors.