erreur Z phantom 4 rtk

PIX4Dmapper
4

Hi @MARIO_laurent,

Thanks for the follow-up. Generally, it is not necessary to use the GCPs as the RTK drone is already very precise. However, it depends on the region and the area you’re modelling. Learn more in Do RTK/PPK drones give you better results than GCPs?

I have to say that I’m a bit confused about what type of data you have. Could you clarify the following:

  • The images were acquired in WGS 84, ellipsoidal height. Is it correct? If yes, you should choose Geoid Height Above WGS 84 Ellipsoid equal to 0.00
    image
    and the following options in the Output Coordinate System.
    image
    image524×594 19.1 KB
  • Do you have the GCPs? If yes in which coordinate system?

We also described step by step instruction on how to handle the input and set the processing options for RTK data. Please have a look at Processing DJI Phantom 4 RTK datasets with Pix4D especially at the FAQ section where we talk about the vertical coordinate system.

Regards