High-SNR single-pixel phase imaging in the UV+VIS+NIR range

Meng Li; Liheng Bian; Jun Zhang

doi:10.1117/12.2538525

18 November 2019 High-SNR single-pixel phase imaging in the UV+VIS+NIR range

Meng Li, Liheng Bian, Jun Zhang

Proceedings Volume 11187, Optoelectronic Imaging and Multimedia Technology VI; 111870M (2019) https://doi.org/10.1117/12.2538525
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

Phase imaging observes the phase of light interacted with the target. The conventional phase imaging methods such as interferometry employ two-dimensional sensors for image capture, resulting in limited spectrum range and low signal-to-noise ratio (SNR). Single-pixel imaging (SPI) provides an alternative solution for high-SNR acquisition of target information over a wide range of spectrum. However, the conventional SPI can only reconstruct light intensity without phase. Existing phase imaging methods using a single-pixel detector require phase modulation, leading to low light efficiency, slow modulation speed and poor noise robustness. In this paper, we propose a novel single-pixel phase imaging method without phase modulation. First, the binary intensity modulation is applied which provides simplified optical setup and high light efficiency. Second, inspired by the phase-retrieval theory, we derive a joint optimization algorithm to reconstruct both amplitude and phase information of the target, from the intensity measurements collected by a single-pixel detector. Both simulations and experiments demonstrate that the proposed method has high SNR, high frame rate, wide spectrum range (UV+VIS+NIR) and strong noise robustness. The method can be widely applied in optics, material and life science.

Citation Download Citation

Meng Li, Liheng Bian, and Jun Zhang "High-SNR single-pixel phase imaging in the UV+VIS+NIR range", Proc. SPIE 11187, Optoelectronic Imaging and Multimedia Technology VI, 111870M (18 November 2019); https://doi.org/10.1117/12.2538525

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KEYWORDS

Phase imaging

Signal to noise ratio

Phase shift keying

Sensors

Image sensors

Modulation

Phase modulation

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