A hyperspectral projector for simultaneous 3D spatial and hyperspectral imaging via structured illumination.
A hyperspectral projector for simultaneous 3D spatial and hyperspectral imaging via structured illumination.
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DOI：
10.1364/oe.402812
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发表时间：
2020-09
期刊：
影响因子：
3.8
通讯作者：
Yibo Xu;Anthony T. Giljum;K. Kelly
中科院分区：
文献类型：
--
作者：
Yibo Xu;Anthony T. Giljum;K. Kelly
三维成像和高光谱成像都提供了场景的重要信息，将它们结合起来有助于我们感知和理解真实世界的结构。以前的高光谱3D成像系统通常需要高光谱成像系统，因为探测器硬件设计复杂，成本高，采集和重建时间长。在这里，我们报告了一种低成本、高帧速率、设计简单、紧凑的高光谱条纹投影仪(HSP)系统，该系统基于单个数字微镜器件，能够产生高光谱图案，其中每行像素具有独立可编程的光谱。我们展示了通过高光谱结构照明使用HSP的两个示例应用：参与介质的体积密度的高光谱3D表面成像和光谱相关的高光谱压缩成像。高光谱模式同时编码目标的3D空间和光谱信息，只需要一个灰度传感器作为探测器。报道的热休克蛋白及其应用为以简单、高效和低成本的方式将结构照明技术与高光谱成像相结合提供了解决方案。这项工作代表了一种新颖的结构照明技术，它为未来硬件系统和软件编码方案的变化提供了基础和灵感。
Both 3D imaging and hyperspectral imaging provide important information of the scene and combining them is beneficial in helping us perceive and understand real-world structures. Previous hyperspectral 3D imaging systems typically require a hyperspectral imaging system as the detector suffers from complicated hardware design, high cost, and high acquisition and reconstruction time. Here, we report a low-cost, high-frame rate, simple-design, and compact hyperspectral stripe projector (HSP) system based on a single digital micro-mirror device, capable of producing hyperspectral patterns where each row of pixels has an independently programmable spectrum. We demonstrate two example applications using the HSP via hyperspectral structured illumination: hyperspectral 3D surface imaging and spectrum-dependent hyperspectral compressive imaging of volume density of participating medium. The hyperspectral patterns simultaneously encode the 3D spatial and spectral information of the target, requiring only a grayscale sensor as the detector. The reported HSP and its applications provide a solution for combining structured illumination techniques with hyperspectral imaging in a simple, efficient, and low-cost manner. The work presented here represents a novel structured illumination technique that provides the basis and inspiration of future variations of hardware systems and software encoding schemes.