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Spinning disk for compressive imaging

机译：旋转盘用于压缩成像

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摘要

We report the first, to the best of our knowledge, experimental implementation of a spinning-disk configuration for high-speed compressive image acquisition. A single rotating mask (i.e., the spinning disk) with random binary patterns was utilized to spatially modulate a collimated terahertz (THz) or IR beam. After propagating through the sample, the THz or IR beam was measured using a single detector, and THz and IR images were subsequently reconstructed using compressive sensing. We demonstrate that a 32-by-32 pixel image could be obtained from 160 to 240 measurements in both the IR and THz ranges. This spinning-disk configuration allows the use of an electric motor to rotate the spinning disk, thus enabling the experiment to be performed automatically and continuously. This, together with its compact design and computational efficiency, makes it promising for real-time imaging applications.
机译：据我们所知，我们首先报告了用于高速压缩图像采集的旋转磁盘配置的实验性实现。具有随机二进制图案的单个旋转掩模（即，旋转盘）用于空间调制准直的太赫兹（THz）或IR光束。在样品中传播后，使用单个检测器测量了THz或IR光束，随后使用压缩感测重建了THz和IR图像。我们证明可以在IR和THz范围内从160到240次测量中获得32 x 32像素的图像。这种纺丝盘配置允许使用电动马达旋转纺丝盘，从而使实验能够自动连续进行。加上其紧凑的设计和计算效率，使其有望用于实时成像应用。

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