DandaMan, post: 364964, member: 11506 wrote: I just purchased a Phantom 3 Advanced to play around with and test out the capabilities. The sensor size is rather small, but for the price you cannot go wrong. I'm just using recreational and researching the field and prospects for future use. It is not a survey grade solution but we don't have pilots nor do we have an FAA excemption, although I applied for one 4+ months back. FAA is due to issue revisions in the next few days. It is rumoured they will do away with the pilot requirement but you will be required to log every little think that you do with the aircraft.
I'm going to try out DroneDeploy this weekend to see what it can do!
Phantom 3 Pro has been an option I am looking at, maybe now the 4. I was thinking the Inspire with 5x camera to get the 16mp res but it is a 6lbs system so it wouldnt be considered in the suas revision (4.4lbs) coming soon. Does anyone have more info on this?
FAA when they release their revision, I was told it still will take several months before it is enacted.
Was not aware of the higher weight limitations associated with the Inspire. I think I just picked it from another forum that the FAA is due out with those soon, but yes, who knows!
The little I know about photogrammetry is from poking around online.
But I do know that megapixels are not the be-all, end-all when it comes it to the camera. Sensor size and other factors come into play..
Hi Tgoold, I used a DJI Inspire 1 Pro for a research project, it provided a pretty good ortho-mosaic. We collect some ground control points using GPS RTK, and compared the results of the GPS with the final ortho-mosaic. We didn't have the chance to mark the ground control points before the images were taken, but we measured objects that were easy to be identified (edges of concrete, road paint, etc....), and the results gave a horizontal accuracy around 10cm. If the GCPs were set before, this accuracy could be definitely improved.
Using Pix4D or Photoscan, both softwares will give you an accuracy in their report that most of the times does not reflect the real accuracy. Using ArcGIS for accuracy assessment will give you a more realistic result.
Cheers,
GeomÌÁgico
Great thanks
Another consideration when using a consumer grade platform such as the DJI Multirotorheli is that results may be improved by calibrating the camera lens. AgiSoft PhotoScan (both standard and pro versions) include the utility AgiSoft Lens for deriving the lens calibration parameters to mitigate distortions. These can be imported into your processing software.
I am going to be trying this myself with my Inspire 1 with the he Zenmuse X3 camera later this week.
I'm way behind, and not into this at all... However, I like cameras. And pics.
I have learned that good grade lenses, trumps high megapixels. For a hobby photographer.
My 2 centavos...
Has anyone explored the DJI spread wings platform with the A3 and coming soon DRTK?
Several camera choices available any thoughts on those?
