  Single-pixel imaging is an innovative imaging scheme and has received
increasing attentions in recent years. It is applicable to imaging at
non-visible wavelengths and imaging under low light conditions. However,
single-pixel imaging has once encountered problems of low reconstruction
quality and long data-acquisition time. This situation has been changed thanks
to the developments of Hadamard single-pixel imaging (HSI) and Fourier
single-pixel imaging (FSI). Both techniques are able to achieve high-quality
and efficient imaging, remarkably improving the applicability of single-pixel
imaging scheme. In this paper, we compare the performances of HSI and FSI with
theoretical analysis and experiments. The results show that FSI is more
efficient than HSI while HSI is more noise-robust than FSI. Our work may
provide a guideline for researchers to choose suitable single-pixel imaging
technique for their applications.
