A noob question about ortho images from pointclouds

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Peder
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A noob question about ortho images from pointclouds

Post by Peder » Wed Mar 06, 2019 5:12 pm

Hi!
Getting into scanning and having great fun.

I am wondering if anyone is creating orthofotos from scan data. If so how? Thru meshing? Other ways?

I think it could be useful to have image backgrounds and not see through walls or other surfaces.

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Re: A noob question about ortho images from pointclouds

Post by blazaj » Thu Mar 07, 2019 9:27 am

Hi Peder,

welcome to the forum! What SW do you use? You can create orthophotos straight from pointclouds and by playing with point size and resolution mask points that are behind objects you want to render. Meshes can give you better quailty by texturing it with hi-res photos, but creating a nice mesh from terrestrial scanner pointclouds can be challenge.

Peder
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Re: A noob question about ortho images from pointclouds

Post by Peder » Fri Mar 08, 2019 4:31 pm

Hi!
I am using:
Register 360
Recap
Revit
Global Mapper
Meshroom (trying it out anyway)
Cloudcompare (trying it out anyway)

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blazaj
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Re: A noob question about ortho images from pointclouds

Post by blazaj » Sun Mar 10, 2019 2:32 pm

Cloud Compare can render ortho views although with very limited options. Not sure about other software on your list. Try Faro Scene LT, it is a free viewer for Faro scans, but can import and render 3rd party data formats as well.

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Re: A noob question about ortho images from pointclouds

Post by jamesworrell » Sun Mar 10, 2019 11:10 pm

Revit sections and elevations can include point cloud. They are to scale etc. Just drop on to a view. Naturally you can see through the cloud so will need to control section/view range thickness etc, or put a wall up behind to obfuscate other cloud data.

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Re: A noob question about ortho images from pointclouds

Post by VXGrid » Wed Mar 13, 2019 8:42 am

Peder wrote:
Wed Mar 06, 2019 5:12 pm
I am wondering if anyone is creating orthofotos from scan data. If so how? Thru meshing? Other ways?

I think it could be useful to have image backgrounds and not see through walls or other surfaces.
There are software packages where you can create these orthophotos practically more or less automatically.
Define the slice and click on calculate and receive a complete dwg file with xref onto the image.

The idea behind it, is that you are able to import the orthophoto at the correct position in any CAD software, and don't need to load the point cloud (since the point cloud is normally hard to handle).

Which scanner are you using/in which format is your point cloud?

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Re: A noob question about ortho images from pointclouds

Post by steves01x » Wed Mar 13, 2019 9:16 am

You can do it in the full version of Cyclone.

Pointools is really good for it as well.

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Re: A noob question about ortho images from pointclouds

Post by TerraModus » Thu Mar 14, 2019 1:06 am

Undet for Revit can be used to generate high-resolution georeferenced orthoimages from point cloud directly in Revit.

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Re: A noob question about ortho images from pointclouds

Post by gsisman » Tue Apr 09, 2019 3:38 pm

blazaj wrote:
Thu Mar 07, 2019 9:27 am
Hi Peder,

welcome to the forum! What SW do you use? You can create orthophotos straight from pointclouds and by playing with point size and resolution mask points that are behind objects you want to render. Meshes can give you better quailty by texturing it with hi-res photos, but creating a nice mesh from terrestrial scanner pointclouds can be challenge.
Kind of a hack, but if you want to get Ortho or "CUBE VIEW Faces" from Register 360- you can copy the Temp Folders while you are exporting JSV-LGS files.
During the processing they spit out the Six sides of the cube image (Similar to Cube views in Cyclone) in JPG color images, they are low res, but if you are looking to block out other points....not sure if that is what you want though...



TEMP_FILES_FOR_LGS_FILE_IN_THE_MAKING_2019-04-09_1016.png
Cube_faces_and_data_from_LGS_temp_files_2019-04-09_1018.png
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