Higher dimensional optical imaging has seen remarkable growth in the past decade. As a representative method, multiplexed structured illumination (MSI) has been widely introduced for its ultra-high resolution of high-dimensional information. In this letter, an imaging framework for recovering higher dimensional image data, which terms quadrature multiplexed structured illumination (QMSI), is proposed and demonstrated. QMSI incorporates the illumination pattern spatial phase information as a new parameter into the encoding process. This strategy can double the frequency spectrum utilization without any overhead compared to MSI, which means it can double the image sequence depth or image spatial resolution. As a proof of concept, we demonstrate the performance of QMSI by experiments on multispectral imaging.

中文翻译：

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正交复用结构照明成像

高维光学成像在过去十年中取得了显着的增长。作为一种代表性的方法，复用结构照明（MSI）因其对高维信息的超高分辨率而被广泛引入。在这封信中，提出并演示了一种用于恢复更高维图像数据的成像框架，称为正交多路复用结构化照明 (QMSI)。QMSI 将照明模式空间相位信息作为新参数纳入编码过程。与MSI相比，该策略可以在没有任何开销的情况下将频谱利用率提高一倍，这意味着它可以将图像序列深度或图像空间分辨率提高一倍。作为概念证明，我们通过多光谱成像实验证明了 QMSI 的性能。