What platform is the end product going to reside in??ÿ
I do everything as far as design and drafting within TBC.?ÿ The road is very near to the house.?ÿ GCP's will be done with RTK GPS.?ÿ Once the surface is developed I could?ÿ load it into the TSC3 and check any point.?ÿ Any elevation within a couple tenths +- is probably good enough at this point.
Maybe Trimble will let me demo the photogrammetry module for a while.
I'll probably fly it all, then work on the smallest project first and go from there.?ÿ No one is going to be damaged here until I get it right.?ÿ Only loss will be my time. I can walk to this projects from my house.
My experience with dronedeploy is that they have a decent mission/flight app. Beyond that they're pretty ho-hum. No GCPs, or Coordinate System unless you pay extra. Pix4D is still the heavy-hitter for processing in the industry, most will agree. You can get that for two weeks free, full trial.
We're not using Bam-Tech or P4P-RTK like LeeG, but I set elevations on my GCPs from established benchmarks with the laser to get better resolution on Z. Make sure you have plenty of additional checkpoints with your ground control.
Fly when it's cloudy if you can. I prefer to paint targets and set mag nails with them in some cases. Don't skimp on your prep and planning. Take advantage of free advice/experience available. Plenty of folks have tried to pioneer this stuff and there's a pretty solid consensus on what is good and what isn't so great. "Garbage in, garbage out" applies to data collection with the drone.
Yellow is good. The real problem is using a small point to identify the centre. Depending on how the pixels fall (especially with a low resolution camera) the centre might appear as a group of 4 pixels, or it might get offset just onto a couple at one side of the centre point. A nice big black cross on the lid will work wonders.
I use blue and white. Very little blue in nature...
Leaning towards painting the targets with a yellow and blue buttery fly.
I can get a 30 day trial of the TBC photogrammetry module from Trimble .?ÿ I can also use Drone deploy the next time my associate buys a month of Drone Deploy.
So that should dip my feet in the pond.
Thanks for all the advice here!
The drone is a DJI Mavic pro platinum.
?ÿ
Not using 30 day trial of Drone Deploy.?ÿ Associate has regular account.
If you have a Mavic 2 Pro, you should update your firmware now!
The Mavic 2 Pro has been causing headaches during data processing because of a geotag issue. The geotags for a portion of the photos are offset by a half-dozen city blocks or so. That is a real hassle for even the most experienced Pix4D user.
I'm sort off thinking to put these projects off until I'm more up to speed. Maybe buy my own drone with a better camera and such.
I'm also looking at software. Since I'm a full TBC user leaning towards the Trimble software. The photegrammetry module comes with UAS Master which, if I'm reading right will allow using photos that are not georeferenced, but probably a pain. UAS Master will allow output of a .jxl from other than Trimble drones so any drone can be used with TBC.
Any comments from those using the UAS Master and TBC on the capability of this software?