A single-pixel camera is composed of optical coding masks, a photo detector, and a computational decoder as the important feature that it requires no image sensor for imaging, and therefore has very simple optical and electrical architectures. The optical coding masks, the implementation of which is a novel point of our research, are composed of holes on a substrate and are arranged on the circumference of a disk to allow mask switching by rotation of the disk. The main features are a simple structure that brings low cost in optics and electronics, no path difference in the mask, and no wavelength dependence except for a dependence on air for wideband spectral imaging. Spectral imaging of a sample composed of color films is demonstrated, and the accuracy of the proposed system is evaluated to make the most of the features.
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This research was supported by JSPS KAKENHI Grant Number JP17H06102.
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Hayasaki, Y., Sato, R. Single-pixel camera with hole-array disk. Opt Rev (2020). https://doi.org/10.1007/s10043-020-00582-z
- Spatial light modulator
- Single-pixel imaging
- Computational imaging
- Hadamard coding