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Author Topic: 3D Forest derived from LIDAR datas  (Read 4084 times)

foxfiles

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3D Forest derived from LIDAR datas
« on: January 09, 2013, 06:51:02 am »

Happy new Year to all of you and congrats to the OT team for the last release which is showing impressive enhancements !

I just want to share about this interesting EU research done on 3D forest using LIDAR , enjoy :
 
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Reality is merely an illusion, albeit a very persistent one - A. Einstein

cameni

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Re: 3D Forest derived from LIDAR datas
« Reply #1 on: January 09, 2013, 09:34:01 am »

Interesting, reminds me that we can't do leaning trees currently.
Though I expected the trees would be LIDARized in some way there too, not billboards.
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Jagerbomber

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Re: 3D Forest derived from LIDAR datas
« Reply #2 on: January 09, 2013, 05:21:11 pm »

Do want!  Just sayin...  ;)

Also...
Quote
Trees were identified with an accuracy of 96% in the canopy height model. However it does not include any tree less than 2m height or tilted/fallen trees having effective height less than 2m. Tree models for the simplicity are 2D and have size, shape, location and tilt based on the LiDAR derived inventory parameters like´╗┐ species, tree height, canopy tilt and orientation. To me it gives me the same feel as I saw the forest in reality.

RIEGL VQ480i laser scanner mounted on Helicopter

And the video description is very interesting.
« Last Edit: January 09, 2013, 05:27:36 pm by Jagerbomber »
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Steve.Wilson

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Re: 3D Forest derived from LIDAR datas
« Reply #3 on: January 09, 2013, 08:57:21 pm »

I'm encouraged by this sort of thing.  Our planet is a cool place to explore.  Being able to really see what it's like in increasingly accurate detail - not some sort of "plausible" world - can only help people appreciate our little blue ball.  When I compare what I can enjoy now to what was available in the early 90's.....  the next 20 years promise to be extremely exciting.  I'm glad Cameni and Angrypig are leading the charge!!!  :D
« Last Edit: January 09, 2013, 08:58:53 pm by Steve.Wilson »
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foxfiles

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Re: 3D Forest derived from LIDAR datas
« Reply #4 on: January 10, 2013, 05:36:58 am »

Though I expected the trees would be LIDARized in some way there too, not billboards.

Yes, I agree, they have them, surely they are not fully able to render them properly,
anyway I find quite nice the way they have extracted all these parameters from the LIDAR...
I wonder what percentage is automatic and what is hand done ?
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Reality is merely an illusion, albeit a very persistent one - A. Einstein