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Author Topic: Possible to cut out objects in 3d model?  (Read 9073 times)

Sky_hie

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Possible to cut out objects in 3d model?
« on: April 04, 2014, 12:48:51 AM »
Hello AGI.

I have created a 3d model from aerial photos. Is it possible to remove objects in model in photoscan? For example, if there is a 10 m high pile of gravel, and the diameter of pile is 15 m. Is it possible to just remove it and make it flat like the ground around?

Thanks

 

Porly

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Re: Possible to cut out objects in 3d model?
« Reply #1 on: April 04, 2014, 12:10:31 PM »
Hello Sky_hie,

there are many options to realize this:

1. Select unwanted object in the model and delete the surfaces. Then: Tools -> Mesh -> Close holes

the better one:

2. Once the dense point cloud exists, you can mark the points (Free from selection tool) of the object and delete them. Mesh generation you run in height field mode and interpolation enabled. The hole will be closed with an interpolated surface from the borders.

3. You can mask the object in photos, then Tools -> Dense cloud -> select masked points. Further like in point 2.

4. You also can classify ground points (Tools -> dense cloud -> classify ground points). In mesh generation you have to use only the ground points in class selection, so only the ground points will be triangulated.

best regards

Paul

Alexey Pasumansky

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Re: Possible to cut out objects in 3d model?
« Reply #2 on: April 04, 2014, 01:21:55 PM »
Hello Sky_hie,

in addition to the points mentioned by Paul, I can say that you can also manually assign dense cloud points classes, for example, to points corresponding to the areas you wish to exclude and then in the Build Mesh dialog exclude this class from mesh generation procedure.
Best regards,
Alexey Pasumansky,
Agisoft LLC

Sky_hie

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Re: Possible to cut out objects in 3d model?
« Reply #3 on: April 05, 2014, 11:04:51 AM »
Thanks guys! Will try this:)