Incoherent frequency-selective phase coded holography and axial overlap information stripping

Abstract

In the paper, we proposed frequency-selective carrier coded aperture correlation holography (FSC-COACH). Incoherent frequency selection technique is introduced into coded aperture correlation holography for the first time, and mask scattering imaging of arbitrary branches is realized. This represents a novel form of non-visual imaging technology capable of effectively suppressing background noise and facilitating holographic separation and reconstruction beneath the obstruction of multiple opaque mediums. Experimental analysis explores the impact of virtual point spread function filter radius on the quality of reconstruction. Through the reconstruction of standard particles and the overlapping dual-path reconstruction of the USAF chart under mask obstruction, the feasibility of our technology is demonstrated. We are confident that the proposed approach will pioneer paradigm shifts in incoherent imaging, wavefront acquisition through scattering mediums, astronomical imaging, and rapid object recognition applications.