Non-line-of-sight 3D imaging with a single-pixel camera

Abstract

Real time, high resolution 3D reconstruction of scenes hidden from the direct field of view is a challenging field of research with applications in real-life situations related e.g. to surveillance, self-driving cars and rescue missions. Most current techniques recover the 3D structure of a non-lineof-sight (NLOS) static scene by detecting the return signal from the hidden object on a scattering observation area. Here, we demonstrate the full colour retrieval of the 3D shape of a hidden scene by coupling back-projection imaging algorithms with the high-resolution time-of-flight information provided by a single-pixel camera. By using a high effciency Single-Photon Avalanche Diode (SPAD) detector, this technique provides the advantage of imaging with no mechanical scanning parts, with acquisition times down to sub-seconds.

arXiv comment6 pages, 4 figures

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• Computational Imaging and Artificial Intelligence: The Next Revolution of Mobile Vision
• Spatial images from temporal data
• Single photon imaging and sensing of obscured objects around the corner
• Domino successive-deviation ghost imaging
• Compact Multi-Spectral Pushframe Camera for Nano-Satellites
• 3D Fourier ghost imaging via semi-calibrated photometric stereo
• A Calibration Scheme for Non-Line-of-Sight Imaging Setups
• Two-Dimensional Non-Line-of-Sight Scene Estimation from a Single Edge Occluder