title: Single-pixel imaging by means of Fourier spectrum acquisition.
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.
authors: Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
authors: Zibang
authors: Z
authors: Zhang
authors: Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
authors: Xiao
authors: X
authors: Ma
authors: 1] Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China [2] Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China.
authors: Jingang
authors: J
authors: Zhong