Combining time of flight and photometric stereo imaging for 3D reconstruction of discontinuous scenes

Emma Le Francois, Alexander D. Griffiths, Jonathan J. D. McKendry, Haochang Chen, David Day-Uei Li, Robert K. Henderson, Johannes Herrnsdorf, Martin D. Dawson, Michael J. Strain

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Abstract

Time of Flight and Photometric Stereo are two three-dimensional (3D) imaging techniques with complementary properties where the former can achieve depth-accuracy in discontinuous scenes and the latter can reconstruct surfaces of objects with fine depth details and high-spatial resolution. In this work, we demonstrate the surface reconstruction of complex 3D fields with discontinuity between objects by combining the two imaging methods. Using commercial LEDs, a single-photon avalanche diode camera and a mobile phone device, high-resolution of surface reconstruction is achieved with a RMS error of 6% for an object, auto-selected from a scene imaged at a distance of 50~cm.
Original languageEnglish
Pages (from-to)3612-3615
Number of pages4
JournalOptics Letters
Volume46
Issue number15
DOIs
Publication statusPublished - 1 Aug 2021

Keywords

  • photometric stereo-imaging
  • time-of-flight
  • 3D surface reconstruction
  • LEDs
  • 3D imaging
  • SPAD camera

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