Fig. 2
From: Directly and instantly seeing through random diffusers by self-imaging in scattering speckles
Operational principles of diffuser-lens imaging systems. The schematic of (a) the PSF for (b) the lens imaging system. (c) The ‘hot-spot’ effect in the diffuser imaging speckle, and (d) the imaging model and experimental setup for incoherent illumination. (e-f) Random phase screen model (e) without features of phase distribution, and (f) with lenslet array phase features. The speckle in (e) is generated by calculating the light-propagation through phase-screen [38]. The speckle in (f) is generated considering the lenslet-phase with incoherent-imaging model using Eq. 1