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Extracting individual trees from lidar point clouds using tr

Posted: Wed Jan 16, 2019 7:18 pm
by Lucas

Click on image to see its original size


https://besjournals.onlinelibrary.wiley ... 210X.13121

https://besjournals.onlinelibrary.wiley ... 210X.13121

"Extracting individual trees from lidar point clouds using treeseq"

FYI

"treeseg is an open-source software tool to extract individual #Trees from #Lidar point clouds.

Find out more about it in this #OpenAccess Methods in #Ecology and #Evolution article: bit.ly/2M7pPf8 (No Subscription Required)"

Re: Extracting individual trees from lidar point clouds usin

Posted: Thu Jan 17, 2019 3:18 am
by M.W.Taylor
Thanks Lucas. That looks awesome. I will need to check out treeseg soon !

Re: Extracting individual trees from lidar point clouds usin

Posted: Thu Jan 17, 2019 1:41 pm
by M.W.Taylor
The LiDAR used to make that image is not the standard type LiDAR but is rather the commercial high resolution LiDAR that is shot from oblique angles (see Greg Asner). It can also be obtained from quad copters or ground stations. The old style LiDAR generated from aircraft laser arrays that you see posted online does not pick up much of the trunk surface due to be shot from directly above and would not work very well with treeseg. Agisoft Pro or Pix4D can generate these types of point clouds using a quad copter and orbiting each tree in the forest.

Re: Extracting individual trees from lidar point clouds usin

Posted: Thu Jan 17, 2019 8:55 pm
by Lucas
Thx
That makes sense. I didn't read the paper. Lots of stuff over my head.

Still cool that it is even possible.