Extracting individual trees from lidar point clouds using tr

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Lucas
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Extracting individual trees from lidar point clouds using tr

Post by Lucas » Wed Jan 16, 2019 7:18 pm


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)"
We travel the Milky way together, trees and men. - John Muir

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M.W.Taylor
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Re: Extracting individual trees from lidar point clouds usin

Post by M.W.Taylor » Thu Jan 17, 2019 3:18 am

Thanks Lucas. That looks awesome. I will need to check out treeseg soon !

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M.W.Taylor
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Re: Extracting individual trees from lidar point clouds usin

Post by M.W.Taylor » Thu Jan 17, 2019 1:41 pm

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.
Last edited by M.W.Taylor on Sat Jan 19, 2019 6:54 pm, edited 1 time in total.

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Lucas
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Re: Extracting individual trees from lidar point clouds usin

Post by Lucas » Thu Jan 17, 2019 8:55 pm

Thx
That makes sense. I didn't read the paper. Lots of stuff over my head.

Still cool that it is even possible.
We travel the Milky way together, trees and men. - John Muir

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