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Efficient Range Sensing Using Imperceptible Structured Light

  • Conference paper
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Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2020)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1474))

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Abstract

A novel projector-camera method is presented that interleaves a sequence of pattern images in the dithering sequence of a DLP projector, in a way that the patterns are imperceptible, and can be acquired cleanly with a synchronized high speed camera. This capability enables the procam system to perform as a real-time range sensor, without affecting the appearance of the projected data. The system encodes and decodes a stream of Gray code patterns imperceptibly, and is deployed on a calibrated and stereo rectified procam system to perform depth triangulation from the extracted patterns. The bandwidth achieved imperceptibly is close to 8 million points per second using a general purpose CPU, which is comparable to perceptible commercial hardware accelerated structured light depth cameras.

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Author information

Authors and Affiliations

  1. Department of Electrical and Computer, Engineering, Queen’s University, Kingston, ON, Canada

    Avery Cole, Sheikh Ziauddin, Jonathon Malcolm & Michael Greenspan

  2. Ingenuity Labs, Queen’s University, Kingston, ON, Canada

    Avery Cole, Sheikh Ziauddin, Jonathon Malcolm & Michael Greenspan

  3. School of Computing, Queen’s University, Kingston, ON, Canada

    Michael Greenspan

Authors
  1. Avery Cole
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  2. Sheikh Ziauddin
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  3. Jonathon Malcolm
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  4. Michael Greenspan
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Corresponding author

Correspondence to Michael Greenspan .

Editor information

Editors and Affiliations

  1. IRISA, University of Rennes 1, Rennes, France

    Kadi Bouatouch

  2. Universidade do Porto, Porto, Portugal

    A. Augusto de Sousa

  3. University of Genova, Genova, Italy

    Manuela Chessa

  4. Mines ParisTech, Paris, France

    Alexis Paljic

  5. Linnaeus University, Växjö, Sweden

    Andreas Kerren

  6. French Civil Aviation University (ENAC), Toulouse, France

    Christophe Hurter

  7. Università di Catania, Catania, Italy

    Giovanni Maria Farinella

  8. Universitat de Barcelona, Barcelona, Spain

    Petia Radeva

  9. Escola Superior de Tecnologia de Setúbal, Setúbal, Portugal

    Jose Braz

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Cole, A., Ziauddin, S., Malcolm, J., Greenspan, M. (2022). Efficient Range Sensing Using Imperceptible Structured Light. In: Bouatouch, K., et al. Computer Vision, Imaging and Computer Graphics Theory and Applications. VISIGRAPP 2020. Communications in Computer and Information Science, vol 1474. Springer, Cham. https://doi.org/10.1007/978-3-030-94893-1_11

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  • DOI: https://doi.org/10.1007/978-3-030-94893-1_11

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