RTK mapping with Matrice 4T

[hydromapping]

Hi everyone,

I'm new here in the forum and reaching out because I’d like to know if anyone has experience using the Matrice 4T for surveying with RTK-level accuracy.

Up to now, I’ve been using the Phantom 4 RTK for mapping, which worked flawlessly. Since I now also need thermal imagery for some of my projects, I decided to switch to the Matrice 4T to cover both RGB and thermal in one drone.

I just did my first test flight with the Matrice 4T using only the RGB camera. According to DJI and the reseller of the drone in my country, the RTK data should be stored in the EXIF metadata of the images. However, when I process the images with photogrammetry software, the resulting orthophotos don’t seem to reflect RTK-level accuracy. It looks like the software isn’t correctly reading the RTK info from the EXIF files.

Has anyone else encountered this issue or found a workaround?

Thanks in advance!

 

[jaja6009]

The Matrice 4 T does NOT produce survey grade accuracy like the Matrice 4 E. The same thing is true with the Mavic 3E and Mavic 3T.

Also, the RGB camera on the Matrice 4T is not the same higher quality Micro 4/3 found on the Matrice 4 E with its mechanical shutter.

You will need to add Ground Control Points to get the accuracy you desire.