Figure 1.

The experimental set-up used for real-time video with a single-pixel detector. A photograph of a single-pixel camera system developed by the Optics Group at the University of Glasgow. The photograph was taken by Kevin Mitchell (a). On the right is a simplified schematic of the inner components consisting of a lens, DMD, single-pixel detector, analogue to digital converter and computer (b). The lens is used to form an image of the scene onto the DMD, which spatially modulates the light using a series of patterns derived by the method described in the text, and the reflected light intensity is measured on single-pixel detector whereupon the signal is digitised by an analogue-to-digital converter for subsequent computer processing and image reconstruction.