I was able to obtain some sample images from the new Matrice 4T in both RGB and Thermal. I processed them in Agisoft Metashape Pro.
Thanks to a forum member on the Commercial Pilots sister site for these images.
The outputs are in NAD83(2011) California State Plane Zone 5 and I used NAVD88 with Geoid 18.
The thermal images are in Super Hi-Res format. They do not work in DJI Thermal Analysis Tool so I cannot convert them into a tiff file to make a radiometric map.
The flight grid was single grid with altitude optimization enabled. I would of liked to see the Smart Oblique instead.
There were not any control points in the folder so I cannot assess the accuracy of the Matrice 4 Thermal using Check Points.
I will see if I can find some state LiDAR data of the same area to get a better assessment of absolute accuracy.
The RGB images were not the 48 megapixels I expected. They were 12 megapixels. I am unsure if the Matrice 4T uses the full 48 megapixels when running a mapping mission. This may be better as the 48 megapixel images would be quite large in size and increase processing time.
The images were taken nadir, so the sides of buildings and cars are not that great.
The images metadata showed RTK was enabled and FIX.
Elevations were reported as above the ellipsoid.
The Observation, Navigation and MRK files were present.
Overall though the data in both 2D and 3D looks good.
The Matrice 4 Enterprise with its 4/3 sensor will be better.
I do not like the super Hi-Res thermal images though when used for photogrammetry. Maybe running a different dataset in the future will change my mind.
2D Maps (RGB and Thermal)
3D Point Cloud and Tiled Model
You can turn on and off the different layers with the eyeball on the lefthand side.
Thanks to a forum member on the Commercial Pilots sister site for these images.
The outputs are in NAD83(2011) California State Plane Zone 5 and I used NAVD88 with Geoid 18.
The thermal images are in Super Hi-Res format. They do not work in DJI Thermal Analysis Tool so I cannot convert them into a tiff file to make a radiometric map.
The flight grid was single grid with altitude optimization enabled. I would of liked to see the Smart Oblique instead.
There were not any control points in the folder so I cannot assess the accuracy of the Matrice 4 Thermal using Check Points.
I will see if I can find some state LiDAR data of the same area to get a better assessment of absolute accuracy.
The RGB images were not the 48 megapixels I expected. They were 12 megapixels. I am unsure if the Matrice 4T uses the full 48 megapixels when running a mapping mission. This may be better as the 48 megapixel images would be quite large in size and increase processing time.
The images were taken nadir, so the sides of buildings and cars are not that great.
The images metadata showed RTK was enabled and FIX.
Elevations were reported as above the ellipsoid.
The Observation, Navigation and MRK files were present.
Overall though the data in both 2D and 3D looks good.
The Matrice 4 Enterprise with its 4/3 sensor will be better.
I do not like the super Hi-Res thermal images though when used for photogrammetry. Maybe running a different dataset in the future will change my mind.
2D Maps (RGB and Thermal)
3D Point Cloud and Tiled Model
You can turn on and off the different layers with the eyeball on the lefthand side.
