title: Single-pixel three-dimensional imaging with time-based depth resolution.
abstract: Time-of-flight three-dimensional imaging is an important tool for applications such as object recognition and remote sensing. Conventional time-of-flight three-dimensional imaging systems frequently use a raster scanned laser to measure the range of each pixel in the scene sequentially. Here we show a modified time-of-flight three-dimensional imaging system, which can use compressed sensing techniques to reduce acquisition times, whilst distributing the optical illumination over the full field of view. Our system is based on a single-pixel camera using short-pulsed structured illumination and a high-speed photodiode, and is capable of reconstructing 128 × 128-pixel resolution three-dimensional scenes to an accuracy of ∼3 mm at a range of ∼5 m. Furthermore, by using a compressive sampling strategy, we demonstrate continuous real-time three-dimensional video with a frame-rate up to 12 Hz. The simplicity of the system hardware could enable low-cost three-dimensional imaging devices for precision ranging at wavelengths beyond the visible spectrum.
authors.affiliation: Department of Opto-electronic Engineering, Beihang University, Beijing 100191, China.|SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
authors.forename: Ming-Jie
authors.initials: MJ
authors.lastname: Sun
authors.affiliation: SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
authors.forename: Matthew P
authors.initials: MP
authors.lastname: Edgar
authors.affiliation: SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
authors.forename: Graham M
authors.initials: GM
authors.lastname: Gibson
authors.affiliation: SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
authors.forename: Baoqing
authors.initials: B
authors.lastname: Sun
authors.affiliation: SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
authors.forename: Neal
authors.initials: N
authors.lastname: Radwell
authors.affiliation: Selex ES, Edinburgh EH5 2XS UK.
authors.forename: Robert
authors.initials: R
authors.lastname: Lamb
authors.affiliation: SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
authors.forename: Miles J
authors.initials: MJ
authors.lastname: Padgett