  An imaging system based on single photon counting and compressive sensing
(ISSPCCS) is developed to reconstruct a sparse image in absolute darkness. The
single photon avalanche detector and spatial light modulator (SLM) of aluminum
micro-mirrors are employed in the imaging system while the convex optimization
is used in the reconstruction algorithm. The image of an object in the very
dark light can be reconstructed from an under-sampling data set, but with very
high SNR and robustness. Compared with the traditional single-pixel camera used
a photomultiplier tube (PMT) as the detector, the ISSPCCS realizes photon
counting imaging, and the count of photons not only carries fluctuations of
light intensity, but also is more intuitive.
