This Content Originally Published by a land surveyor to Land Surveyors United Network
Hello Kevin from the other side of the pond. We use a DJI Phantom 4 Pro drone. Our tablets in the field run Pix4D Capture to run the grids and collect the images (free software). We then process the images with Pix4DPro Mapper. This software requires a monthly/yearly subscription, or a one-time purchase fee and is pricey.
Pix4D mapper exports the orthomosaics, point clouds, etc. that we need. We are now flying almost every topo site that we do! I have seen as good as 0.5" resolution, and it is great to have the up-to-date imagery.
Hope that helps, feel free to ask questions if you have any.
Hello Kevin... We use DJI Phanton 4. We use Drone deploy in our handsets and to process the data we use Agisoft PhotoScan.
U can send me a msg by what´s App and we can talk better.
+5511993127262 or by e-mail adress: firstname.lastname@example.org
We use Ebee RTK Drones, easy to setup and work with. When we capture our imagines, we use PIX4D to process our images. PIX4D gives us very good point clouds which you can import in other software (i use maptek I-Site Studio to create contours, DTMs etc). PIX4D also generates very good contours which you can also import in other survey software (I use surpac). PIX4d has a volume function which can help you calculate cut and fill volumes. hope this helps :)
I have a question regarding aerial surveys. A local Registered Surveyor asked me to demonstrate/prove the accuracy of the drone generated model.
I have used Pix4d and Photoscan briefly in the past.
What are some ways to demonstrate the accuracy?
- include some GCP's that are not part of the processing and check their location/height in the model?
- leave a staff flat on the ground at a fixed length and measure its length in the model? Maybe two at a 90 degree angle?