Review on infrared single-pixel imaging

The article discusses modern single-pixel imaging techniques. Different solutions of spatial light modulators (SLMs) used in infrared imaging are presented. The focus is on image reconstruction methods, in particular on the use of a modulator based on orthogonal codes, cyclic matrices, and neural networks for image reconstruction. The potential possibilities and limitations of these new imaging methods are described, emphasizing their usefulness in different ranges of the infrared spectrum. Moreover, the experimental implementation of a single-pixel infrared camera is presented. Possible applications and future development perspectives of this technology are indicated.