I fly with RTK drones, are GCPs needed?

  • Updated

RTK drones can greatly improve the accuracy of GPS coordinates for georeferencing the imagery collected by the drone camera but still GCPs are required to ensure consistent geolocation of the drone products. When using such a system, please make sure that RTK GPS data is being actively stored in the imagery metadata.

The field software analyses the image coordinate accuracies stored in the EXIF of the images and defines an RTK mission in case >95% of the images have an XY accuracy <3cm. In that case a mission is only required to have 2 GCPs defined.

In case no accuracy information is stored in the EXIF of the images or the amount of images with XYaccuracy <3cm is lower than 95%, the mission is defined as non-RTK and 6 GCPs are required.