Multi-Echo Imaging Physics 14, 65 With a one-pixel detector and a pulsed emitting device, researchers are able to produce a 3D image of a room from multiple echoes. A. Turpin et al. [1] Self reflection. This simulation shows an image of a person in a room, assuming a camera could record all of the reflections from surfaces. The figure on the right in black is the direct image of the person, whereas the other figures are indirect (multi-bounce) images of the same person (see videos below). Self reflection. This simulation shows an image of a person in a room, assuming a camera could record all of the reflections from surfaces. The figure on the right in black is the direct image of the person, whereas the other figures are indirect (mu... Show more