Developer

UAV Generated Point Cloud Classification

Ok, so this may be a more advanced topic than normally found on this forum. But I am struggling to classify the point clouds generated with the UAV. After Pix4D, after Agisoft or others you are left with an unclassified point cloud If I want to classify the buildings, vegetation, and ground points so I can then generate a DTM. How is everyone doing this? What software have you used, what settings? 

The main problem I have found is that most point cloud manipulation software is designed for LiDAR, and LiDAR has one thing we do not have, multiple returns. So for them clasifying the ground is a matter of getting the last return and then just cleaning up the buildings. But most of these don't work so well with the point clouds from Pix4D, Agisoft, etc... I have tried LASTools, ESRI, and recently DTMaster. Any other suggestions? or suggestions on the settings to use?

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

        • Amazing 360 degree view.

        • Amazing! It will solve a lot of problems!

          Thanks William!

        • AWESOME! Thanks for sharing that. 

          Josh 

  • MR60

    Hi Jaime, since you are a developer, you should not be scared to use the open source best photogrammetry software called "Micmac". It is not a GUI based soft, only command lines. This soft is used by the French National Mapping organization (IGN).

  • Happy to see this thread... I'm doing a photogrammetry and had successfully generate a very nice dtm, dem and orthophoto with acurate ground control points using agisoft. Maybe the same problem with Jaime but different perspective, i want to clasify the point cloud that has green colour (which represent trees) seperately from the red and grey clour point cloud (which represent actual ground) automatically. Is there any such function on any softwarr to do that automatically? I have managed to do that manually, but if the survey area is too big, it will be too much pain.

  • Try Globalmapper, there is a way to classify pointclouds from photogrammetry using the LIDAR module...

    • Huh.  I will look into that. Thanks

      • 3702690105?profile=originalHere is a surface model of the ground points from the field next door. I used an NEX-5 and photoscan. to generate the point cloud. TerraScan and TerraModel to classify the points and generate the model. I would look into GlobalMapper as well.

        Regards,

        Robert

  • I use Terrasolid's TerraScan product which sits on top of Microstation as an MDL app to process LiDAR points clouds.. TerraScan uses statistical based algorithms, so it is not dependent on Return/echo number. I'm in the process of generating point clouds from UAV photos using photoscan and I'l classify them with TerraScan. I'll let you know how they turn out. I'm having problems georefing the images using Mission Planner. I'm getting very high altitude numbers for the Z. I'm flying at 50 meters and it is saying they are at 2200 meters.

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @chr1sa: Donkeycar 4.4 released with tons of new features, including path learning (useful with GPS outdoors), better Web and Lidar supp…
Nov 27, 2022
DIY Robocars via Twitter
RT @NXP: We are already biting our nails in anticipation of the #NXPCupEMEA challenge! 😉 Did you know there are great cash prizes to be won…
Nov 24, 2022
DIY Robocars via Twitter
RT @gclue_akira: レースまであと3日。今回のコースは激ムズかも。あと一歩 #jetracer https://t.co/GKcEjImQ3t
Nov 24, 2022
DIY Robocars via Twitter
UC Berkeley's DIY robocar program https://roar.berkeley.edu/
Nov 24, 2022
DIY Robocars via Twitter
RT @chr1sa: The next @DIYRobocars autonomous car race at @circuitlaunch will be on Sat, Dec 10. Thrills, spills and a Brazilian BBQ. Fun…
Nov 24, 2022
DIY Robocars via Twitter
RT @arthiak_tc: Donkey car platform ... Still training uses behavioral cloning #TCXpo #diyrobocar @OttawaAVGroup https://t.co/PHBYwlFlnE
Nov 20, 2022
DIY Robocars via Twitter
RT @emurmur77: Points for style. @donkeycar racing in @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/Y2hMyj1…
Nov 20, 2022
DIY Robocars via Twitter
RT @SmallpixelCar: Going to @diyrobocars race at @UCSDJacobs https://t.co/Rrf9vDJ8TJ
Nov 8, 2022
DIY Robocars via Twitter
RT @SmallpixelCar: Race @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/kK686Hb9Ej
Nov 8, 2022
DIY Robocars via Twitter
RT @PiWarsRobotics: Presenting: the Hacky Racers Robotic Racing Series in collaboration with #PiWars. Find out more and register your inter…
Oct 23, 2022
DIY Robocars via Twitter
RT @Hacky_Racers: There will be three classes at this event: A4, A2, and Hacky Racer! A4 and A2 are based around UK paper sizing and existi…
Oct 23, 2022
DIY Robocars via Twitter
Oct 23, 2022
DIY Robocars via Twitter
Oct 19, 2022
DIY Robocars via Twitter
Oct 18, 2022
DIY Robocars via Twitter
RT @NeaveEng: Calling all UK based folks interested in @diyrobocars, @f1tenth, @donkey_car, and similar robot racing competitions! @hacky_r…
Oct 13, 2022
DIY Robocars via Twitter
RT @araffin2: 🏎️ After hours of video editing, I'm happy to share a best of my Twitch videos on learning to race with RL. 🏎️ Each part is…
Oct 13, 2022
More…