I work for a general contractor and have been tasked to used a Phantom 3 Pro to see if this is something the company wants to invest in. The main purpose for us is to be able to create surfaces/topographys from aerial data for engineering/ design purposes. I am having a very hard time getting my project to align perfectly with the ground control points. When I watched the webinar about GCP’s, the green and the blue cross markers were perfectly aligned. With my project I am having a lot of issues getting all of my markers aligned for an accurate model.
What I know I have done right:
Plenty of overlap
at least 5 GCP’s on man holes/ water valve lids from a surveyor ( I am un able to double check these at the moment)
What I am not sure about:
I am using another app called Drone Deploy to plan missions from my phone. Could this have something to do with my errors? I have tried the capture app from pix4d and I can only get it to work every once in a while.
Should I be using the geotags from the drone on my images? From the quality report, I learn that I am off by a lot. I can also see the cameras floating in the point cloud with the green and blue dots spaced out a lot.
What other tips can you provide that I am missing? I have read all of the faq and a lot of posts on this forum and I have no answers.
Thanks! Riley