Continuously scanning time-correlated single-photon-counting single-pixel 3-D lidar

Markus Henriksson; Håkan Larsson; Christina Grönwall; Gustav Tolt

doi:10.1117/1.OE.56.3.031204

27 September 2016 Continuously scanning time-correlated single-photon-counting single-pixel 3-D lidar

Markus Henriksson, Håkan Larsson, Christina Grönwall, Gustav Tolt

Author Affiliations +

Optical Engineering, Vol. 56, Issue 3, 031204 (September 2016). https://doi.org/10.1117/1.OE.56.3.031204

Abstract

Time-correlated single-photon-counting (TCSPC) lidar provides very high resolution range measurements. This makes the technology interesting for three-dimensional imaging of complex scenes with targets behind foliage or other obscurations. TCSPC is a statistical method that demands integration of multiple measurements toward the same area to resolve objects at different distances within the instantaneous field-of-view. Point-by-point scanning will demand significant overhead for the movement, increasing the measurement time. Here, the effect of continuously scanning the scene row-by-row is investigated and signal processing methods to transform this into low-noise point clouds are described. The methods are illustrated using measurements of a characterization target and an oak and hazel copse. Steps between different surfaces of less than 5 cm in range are resolved as two surfaces.

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Markus Henriksson, Håkan Larsson, Christina Grönwall, and Gustav Tolt "Continuously scanning time-correlated single-photon-counting single-pixel 3-D lidar," Optical Engineering 56(3), 031204 (27 September 2016). https://doi.org/10.1117/1.OE.56.3.031204

Published: 27 September 2016

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