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Open AccessArticle

Pulse Based Time-of-Flight Range Sensing

Institute for Vision and Graphics, University of Siegen, 57068 Siegen, Germany
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Sensors 2018, 18(6), 1679; https://doi.org/10.3390/s18061679
Received: 3 April 2018 / Revised: 10 May 2018 / Accepted: 21 May 2018 / Published: 23 May 2018
(This article belongs to the Special Issue Depth Sensors and 3D Vision)
Pulse-based Time-of-Flight (PB-ToF) cameras are an attractive alternative range imaging approach, compared to the widely commercialized Amplitude Modulated Continuous-Wave Time-of-Flight (AMCW-ToF) approach. This paper presents an in-depth evaluation of a PB-ToF camera prototype based on the Hamamatsu area sensor S11963-01CR. We evaluate different ToF-related effects, i.e., temperature drift, systematic error, depth inhomogeneity, multi-path effects, and motion artefacts. Furthermore, we evaluate the systematic error of the system in more detail, and introduce novel concepts to improve the quality of range measurements by modifying the mode of operation of the PB-ToF camera. Finally, we describe the means of measuring the gate response of the PB-ToF sensor and using this information for PB-ToF sensor simulation. View Full-Text
Keywords: time-of-flight; pulse-based; range sensor; computer vision time-of-flight; pulse-based; range sensor; computer vision
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Sarbolandi, H.; Plack, M.; Kolb, A. Pulse Based Time-of-Flight Range Sensing. Sensors 2018, 18, 1679.

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