Holographic Correloscopy—Unconventional Holographic Techniques For Imaging a Three-Dimensional Object Through an Opaque Diffuser or Via a Scattering Wall: A Review

Techniques of unconventional holography, called holographic correloscopy, for imaging a three-dimensional (3-D) object through an opaque diffuser or via a scattering wall are reviewed. This paper is not intended to be a general overview. Instead, it will focus and shed light on less-known techniques termed coherence holography, photon-correlation holography, remote imaging digital holography, and dual-reference holography. This paper will introduce how they perform 3-D imaging through a diffuser or via a scattering wall with a thin but strongly scattering layer.