DIY hyperspectral imaging via polarization-induced spectral filters
DIY hyperspectral imaging via polarization-induced spectral filters
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DOI：
10.1109/iccp54855.2022.9887696
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发表时间：
2022-08
期刊：
影响因子：
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通讯作者：
Katherine Salesin;Dario Seyb;Sarah Friday;Wojciech Jarosz
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文献类型：
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作者：
Katherine Salesin;Dario Seyb;Sarah Friday;Wojciech Jarosz
我们提出了一种新的设计自己动手的高光谱成像系统，其操作通过可调，偏振诱导，光谱滤波器拍摄多张照片。在这种自己动手的竞技场中的现有方法通过从烘焙到现有产品中的离散光谱集合中进行选择来实现高光谱成像。相比之下，我们的方法是能够产生一个连续的家庭的宽带传输光谱的简单旋转堆叠偏振器和波片。这极大地扩展了可表示光谱的潜在范围，从固定维空间扩展到任意维空间。我们分析了我们的方法的理论光谱范围，并证明了它的可行性，无论是在模拟和低成本的物理原型的光谱表面反射率重建。我们的原型表明，我们的方法可以以更低的成本实现与先前工作相当的质量，而新的设计空间为专业制造提供了提高质量和灵活性的充分机会。
We propose a novel design for a do-it-yourself hyperspectral imaging system which operates by taking multiple photographs through tunable, polarization-induced, spectral filters. Prior approaches in this do-it-yourself arena achieve hyperspectral imaging by selecting from a discrete set of spectra baked into existing products. In contrast, our approach is capable of generating a continuous family of broadband transmission spectra by simple rotations of stacked polarizers and waveplates. This greatly expands the potential range of representable spectra from a fixed-dimensional to an arbitrary-dimensional space. We analyze the theoretical spectral gamut of our approach and demonstrate its viability for spectral surface reflectance reconstruction both in simulation and with a low-cost physical prototype. Our prototype demonstrates that our approach can achieve comparable quality to prior work at reduced cost, while the new design space holds ample opportunity for increased quality and flexibility with professional manufacturing.