Single-pixel ghost imaging based on mobile phones

A type of distortion-free single-pixel ghost imaging without lenses is successfully realized by using a mobile phone. The proposed method is not sensitive to imaging distance. When the ratio of imaging distance to the size of the imaging object is close to 1:2, clear and distortion-free imaging can still be achieved. This imaging entails low requirements for system hardware. A clear image can be realized when the brightness of a mobile phone is 70 lumens. Benefiting from the small volume, high portability, and wide application of mobile phones, as well as the broad application prospects of ghost imaging, the ghost imaging based on mobile phones can provide a portable and distortion-free imaging and detection method with significant applications in biological recognition and health monitoring. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE)