Megapixel X-ray ghost imaging with a binned detector in the object arm

Abstract

At present, reconstruction of megapixel and high-fidelity images with few measurements is a major challenge for X-ray ghost imaging (XGI). The available strategies require massive measurements and reconstruct low-fidelity images of less than 300 × 300 pixels. Inspired by the concept of synthetic aperture radar, synthetic aperture XGI (SAXGI) integrated with compressive sensing is proposed to solve this problem with a binned detector in the object arm. Experimental results demonstrated that SAXGI can accurately reconstruct the 1200 × 1200 pixels image of a binary sample of tangled strands of tungsten fiber from 660 measurements. Accordingly, SAXGI is a promising solution for the practical application of XGI.

Ghost projection. II. Beam shaping using realistic spatially-random masks

“…This scheme for parallelized ghost projection is analogous to the scheme for parallelized ghost imaging reported by Kingston et al[34] in the context of neutron ghost imaging, and Zhang et al[35] in the context of x-ray ghost imaging.…”

Optimizing the ordering of the Hadamard masks of ghost imaging suitable for the efficient face reconstruction using the max-projection method

“…Ghost imaging (GI) [1][2][3][4][5][6] , also referred to as single-pixel imaging (SPI) [7][8][9][10][11][12][13][14] , represents a novel nonlocalized imaging method that distinguishes itself from conventional direct imaging. GI can overcome the challenge of traditional multipixel imaging that it is technologically unavailable under harsh circumstances, including poor illumination 15 and turbulent environments 16 , and it can obtain a spatial resolution beyond the Rayleigh diffraction limit 17 .…”