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. 2019 Apr 17;10:486. doi: 10.3389/fpls.2019.00486

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Copyright © 2019 Puttonen, Lehtomäki, Litkey, Näsi, Feng, Liang, Wittke, Pandžić, Hakala, Karjalainen and Pfeifer.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Overview of the measurement area (A) and the top view of its point cloud (B). Scanner locations are marked with colored boxes: being the FARO Focus X330 (red); FARO Focus 3D 120 S 1 (dark blue); and TRIMBLE T5X (green). The gray points denote the combined point cloud of all three scanners. All targets monitored in the study are marked individually in the figure and highlighted with a red circle (lamppost) and rectangles (Norway maples). The five reference sphere locations are marked with black disks on the point cloud. The overview image on the left was taken at a different time than the measurement and is added for information. It is not to the same scale as the point cloud figure.