A Practical Validation of Uncooled Thermal Imagers for Small RPAS

Uncooled thermal imaging sensors in the LWIR (7.5 μm to 14 μm) have recently been developed for use with small RPAS. This study derives a new thermal imaging validation methodology via the use of a blackbody source (indoors) and real-world field conditions (outdoors). We have demonstrated this metho...

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Bibliographic Details
Published in:Drones (Basel) 2021-12, Vol.5 (4), p.132
Main Authors: Leblanc, George, Kalacska, Margaret, Arroyo-Mora, J. Pablo, Lucanus, Oliver, Todd, Andrew
Format: Article
Language:English
Subjects:
Air temperature
Aircraft
Blackbody
Calibration
Cameras
Data collection
drone
emissivity
Humidity
Laboratories
Neural networks
Radiation
Sensors
Temperature
Temperature sensors
Thermal imaging
UAS
UAV
Vegetation
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Summary:Uncooled thermal imaging sensors in the LWIR (7.5 μm to 14 μm) have recently been developed for use with small RPAS. This study derives a new thermal imaging validation methodology via the use of a blackbody source (indoors) and real-world field conditions (outdoors). We have demonstrated this method with three popular LWIR cameras by DJI (Zenmuse XT-R, Zenmuse XT2 and, the M2EA) operated by three different popular DJI RPAS platforms (Matrice 600 Pro, M300 RTK and, the Mavic 2 Enterprise Advanced). Results from the blackbody work show that each camera has a highly linearized response (R2 > 0.99) in the temperature range 5–40 °C as well as a small (
ISSN:2504-446X
2504-446X
DOI:10.3390/drones5040132