Abstract
Modern digital cameras use sensor arrays that correspond to millions of pixels in the image. However, the single-pixel imaging (SPI) system captures images by a single-pixel detector without the need for a pixelated sensor to have spatial resolution. Research on SPI has attracted more and more attention from scholars. The SPI system provides a potential low-cost solution for sensing beyond the visible spectrum. Also, it is suitable for obtaining information in low light, high absorption, and backscattering conditions. This paper reviews the developments and performance of SPI, the research on static and dynamic objects, the methods of the real-time three-dimensional imaging and video. The potential applications of SPI are further explained in detail.
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