论文标题

实现主动卷曲照明成像技术的实验实现,以提高信噪比

Experimental realization of the active convolved illumination imaging technique for enhanced signal-to-noise ratio

论文作者

Adams, Wyatt, Ghoshroy, Anindya, Guney, Durdu O.

论文摘要

对于几乎每个科学,工程,技术和医学领域,成像都是必不可少的。然而,尽管令人印象深刻的工具,例如SIM,Palm/Storm和STED显微镜,但测量噪声和随机变形构成了可访问的时空信息的基本限制。几十年来,理想情况下,如何应对这一挑战一直是一个悬而未决的问题。受到“虚拟增益”技术以补偿超材料中损失的启发,最近有人提出了“主动卷积照明”,以显着提高信噪比,从而显着提高数据获取。在此技术中,物体的光模式与相关的辅助模式叠加,其功能是根据其光谱特征逆转噪声和随机变形的不利影响。尽管在统计数据中产生了巨大的影响,但迄今为止,这种新技术的实验实现一直缺乏。在这里,我们提出了第一个实验演示。我们发现,主动卷积照明不仅可以提高分辨率限制和图像对比度,还可以提高对像素饱和度的抗性。结果证实了以前的理论,并在大气科学,地震学,生物学,统计学习和信息处理到基本界限之外的量子噪声方面的广泛学科开辟了新的视野。

Imaging is indispensable for nearly every field of science, engineering, technology, and medicine. However, measurement noise and stochastic distortions pose fundamental limits to accessible spatiotemporal information despite impressive tools such as SIM, PALM/STORM, and STED microscopy. How to combat this challenge ideally has been an open question for decades. Inspired by a "virtual gain" technique to compensate losses in metamaterials, "active convolved illumination" has been recently proposed to significantly improve the signal-to-noise ratio, hence data acquisition. In this technique, the light pattern of the object is superimposed with a correlated auxiliary pattern, the function of which is to reverse the adverse effect of noise and random distortion based on their spectral characteristics. Despite enormous implications in statistics, an experimental realization of this novel technique has been lacking to date. Here, we present the first experimental demonstration. We find that the active convolved illumination does not only boost the resolution limit and image contrast, but also the resistance to pixel saturation. The results confirm the previous theories and opens up new horizons in a wide range of disciplines from atmospheric sciences, seismology, biology, statistical learning, and information processing to quantum noise beyond the fundamental boundaries.

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