Fig. 5
From: Directly and instantly seeing through random diffusers by self-imaging in scattering speckles
Modified SAI reconstruction inspired by self-imaging. Experimental results of imaging through a thin diffuser using (a-c) classic SAI (Ref. [25]) and (d-f) improved SAI reconstruction methods. (a) Speckle for reconstruction. (b) Autocorrelations of speckle in (a). (c) The recovered image using the direct SAI method. (d) Image of speckle in (a) after homomorphic filtering processing. (e) Autocorrelations of speckle in (d). (f) The reconstructed results using (d) and (e). Scale bars in (c, f): 10 pixels. (g, h) The cross-line plots of the intensity of direct SAI (first row) and modified SAI (second row) at the central vertical line position (shown as the colored-dashed vertical line in (b-c) and (e-f)). AC: autocorrelation. HF: homomorphic filtering