Single-pixel imaging by means of Fourier spectrum acquisition

Zibang Zhang, Xiao Ma and Jingang Zhong ()
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Zibang Zhang: Jinan University
Xiao Ma: Jinan University
Jingang Zhong: Jinan University

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Single-pixel imaging techniques enable to capture a scene without a direct line of sight to the object, but high-quality imaging has been proven challenging especially in the presence of noisy environmental illumination. Here we present a single-pixel imaging technique that can achieve high-quality images by acquiring their Fourier spectrum. We use phase-shifting sinusoid structured illumination for the spectrum acquisition. Applying inverse Fourier transform to the obtained spectrum yields the desired image. The proposed technique is capable of capturing a scene without a direct view of it. Thus, it enables a feasible placement of detectors, only if the detectors can collect the light signals from the scene. The technique is also a compressive sampling like approach, so it can reconstruct an image from sub-Nyquist measurements. We experimentally obtain clear images by utilizing a detector not placed in direct view of the imaged scene even with noise introduced by environmental illuminations.

Date: 2015
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DOI: 10.1038/ncomms7225

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