Operate Ransac on tree

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guysadot
Posts: 8
Joined: Sun Jul 11, 2021 10:52 am

Operate Ransac on tree

Post by guysadot »

Hey all
My cloud contain combined ALS and TLS point cloud.
My goal is to segment the stem, floor and the rest (suppose to be the leaf) with Ransac.
I tried and got much more then one cylinders and planes.
Does anyone have experience with the parameters needed to be fill before?
Picture Added for reference.

Thanks!
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Ransac Shape Detection.jpg
Ransac Shape Detection.jpg (83.98 KiB) Viewed 11202 times
guysadot
Posts: 8
Joined: Sun Jul 11, 2021 10:52 am

Re: Operate Ransac on tree

Post by guysadot »

Forgot to add the LAS file
Its to heavy so a picture added for reference

Guy
Attachments
Tree for example.jpg
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daniel
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Re: Operate Ransac on tree

Post by daniel »

You can maybe play with the minimum number of points? (depending on how dense is your cloud of course)
Daniel, CloudCompare admin
guysadot
Posts: 8
Joined: Sun Jul 11, 2021 10:52 am

Re: Operate Ransac on tree

Post by guysadot »

Hey Daniel, sorry for the late answer
In my case, the point density varies a lot. the lower side is much denser than the higher.
I tried to set Min Radius, and it helped a bit but still, the output is not good enough.
have you familiar with the parameters on the right side?
Thanks again!

Guy
daniel
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Posts: 7709
Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
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Re: Operate Ransac on tree

Post by daniel »

Well, I would have to look at the article again ;)
Daniel, CloudCompare admin
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