Single-pixel hyperspectral imaging using Hadamard transformation

摘要

In this paper, we present a single-pixel hyperspectral imager based on Hadamard transformation. The imager uses a micromirror array and a resonant scanning mirrorto implement spatial and spectral encoding. Fora proof of concept, the sensing wavelength of the imager is 450nm to 750nm, but it can easily be applied to the infrared wavelengths. It has high robustness and high frame rate compared with conventional single-pixel hyperspectral imagers. We also introduce a cascading method that can enhance the spatial resolution of the single-pixel hyperspectral imager. Some experimental results are presented in the paper to demonstrate the performance of our proposed system.