LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones

Drones provide a privileged birds’-eye view for collecting high-resolution imagery for morphometric and behavioral sampling of animals. Biologically meaningful measurements extracted from overhead images require an accurate estimate of altitude, but current commercial drones include inaccurate barom...

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Main Authors: K.C. Bierlich, Drummond Wengrove, Clara N. Bird, Robert Davidson, Todd Chandler, Leigh G. Torres, Mauricio Cantor
Format: Article
Language:English
Published: Canadian Science Publishing 2024-01-01
Series:Drone Systems and Applications
Subjects:
Online Access:https://cdnsciencepub.com/doi/10.1139/dsa-2023-0051
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author K.C. Bierlich
Drummond Wengrove
Clara N. Bird
Robert Davidson
Todd Chandler
Leigh G. Torres
Mauricio Cantor
author_facet K.C. Bierlich
Drummond Wengrove
Clara N. Bird
Robert Davidson
Todd Chandler
Leigh G. Torres
Mauricio Cantor
author_sort K.C. Bierlich
collection DOAJ
description Drones provide a privileged birds’-eye view for collecting high-resolution imagery for morphometric and behavioral sampling of animals. Biologically meaningful measurements extracted from overhead images require an accurate estimate of altitude, but current commercial drones include inaccurate barometer estimates. Recent proposals for coupling altimeter systems to drones have provided customized, open-source solutions, yet assembling such altimeter systems requires advanced technical skills, thereby potentially limiting their use. Here, we built upon recent advances to provide a 3D-printed enclosure for an altimeter system that is inexpensive, self-contained, easy to setup, and transferable across commercial drones. We depart from a published, successful data logger system composed of a GPS and LiDAR sensor and design a more compact and self-powered version (“LidarBoX”) that easily attaches to a variety of commercial drones. We compare flight times with/without LidarBoX attached, test flight maneuverability and performance, and validate the reliability of measurement accuracy. To make LidarBoX accessible, we provide an open-source repository with design code and files and a how-to-assemble guide for non-specialists. We hope this work helps popularize LiDAR altimeter systems on commercial drones to improve the accuracy and reliability of drones as a sampling platform for ecology and wildlife research.
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spelling doaj.art-de77e1986833461f9aef964af4b6e1222024-03-27T11:16:49ZengCanadian Science PublishingDrone Systems and Applications2564-49392024-01-011211010.1139/dsa-2023-0051LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf dronesK.C. Bierlich0Drummond Wengrove1Clara N. Bird2Robert Davidson3Todd Chandler4Leigh G. Torres5Mauricio Cantor6Department of Fisheries, Wildlife and Conservation Sciences, Oregon State University, USA; Marine Mammal Institute, Oregon State University, Corvallis, OR, USAInnovation Lab, Hatfield Marine Science Center, Oregon State University, Corvallis, OR, USADepartment of Fisheries, Wildlife and Conservation Sciences, Oregon State University, USA; Marine Mammal Institute, Oregon State University, Corvallis, OR, USAInnovation Lab, Hatfield Marine Science Center, Oregon State University, Corvallis, OR, USADepartment of Fisheries, Wildlife and Conservation Sciences, Oregon State University, USA; Marine Mammal Institute, Oregon State University, Corvallis, OR, USADepartment of Fisheries, Wildlife and Conservation Sciences, Oregon State University, USA; Marine Mammal Institute, Oregon State University, Corvallis, OR, USADepartment of Fisheries, Wildlife and Conservation Sciences, Oregon State University, USA; Marine Mammal Institute, Oregon State University, Corvallis, OR, USADrones provide a privileged birds’-eye view for collecting high-resolution imagery for morphometric and behavioral sampling of animals. Biologically meaningful measurements extracted from overhead images require an accurate estimate of altitude, but current commercial drones include inaccurate barometer estimates. Recent proposals for coupling altimeter systems to drones have provided customized, open-source solutions, yet assembling such altimeter systems requires advanced technical skills, thereby potentially limiting their use. Here, we built upon recent advances to provide a 3D-printed enclosure for an altimeter system that is inexpensive, self-contained, easy to setup, and transferable across commercial drones. We depart from a published, successful data logger system composed of a GPS and LiDAR sensor and design a more compact and self-powered version (“LidarBoX”) that easily attaches to a variety of commercial drones. We compare flight times with/without LidarBoX attached, test flight maneuverability and performance, and validate the reliability of measurement accuracy. To make LidarBoX accessible, we provide an open-source repository with design code and files and a how-to-assemble guide for non-specialists. We hope this work helps popularize LiDAR altimeter systems on commercial drones to improve the accuracy and reliability of drones as a sampling platform for ecology and wildlife research.https://cdnsciencepub.com/doi/10.1139/dsa-2023-0051morphometricslaser altimeterLiDARUASmarine megafaunawildlife ecology
spellingShingle K.C. Bierlich
Drummond Wengrove
Clara N. Bird
Robert Davidson
Todd Chandler
Leigh G. Torres
Mauricio Cantor
LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones
Drone Systems and Applications
morphometrics
laser altimeter
LiDAR
UAS
marine megafauna
wildlife ecology
title LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones
title_full LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones
title_fullStr LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones
title_full_unstemmed LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones
title_short LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones
title_sort lidarbox a 3d printed open source altimeter system to improve photogrammetric accuracy for off the shelf drones
topic morphometrics
laser altimeter
LiDAR
UAS
marine megafauna
wildlife ecology
url https://cdnsciencepub.com/doi/10.1139/dsa-2023-0051
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