Colorize Aerial Lidar

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dmanning
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Colorize Aerial Lidar

Post by dmanning » Tue Nov 15, 2016 12:57 pm

I typically work with terrestrial data but have been asked to look at colorizing an aerial LAS with ortho imagery. What software would you recommend to accomplish this? Commercial, experimental, or freeware is fine.

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Re: Colorize Aerial Lidar

Post by piotr.pioro » Tue Nov 15, 2016 1:38 pm

Hello Dustin,

You can do that using e.g. lascolor or TerraSolid. Both programs are payed. Better way to colorize aerial data is using images with external orientation.

Links below:
https://rapidlasso.com/lastools/lascolor/
http://www.terrasolid.com/products/terrascanpage.php

If you will have further questions feel free to contact via pm, maybe I can help you in this project.

regards
Piotr

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vislaw
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Re: Colorize Aerial Lidar

Post by vislaw » Tue Nov 15, 2016 1:51 pm

I will be interested to learn what solutions are available so hopefully people will post their suggested workflows.

I personally am a 3DS Max user and I'm a big fan of the TERRAIN plugin written by Chris at Megafiers (http://www.west-racing.com/mf/?page_id=2979). It is designed to extract Google Earth terrain data but it also serves as an elegant tool to pull the Google ortho imagery at whatever resolution you desire. You simply import a KMZ file representing the boundaries of your scan data and it will generate a matching texture map as a BMP or JPEG file.

If you wish to apply the texture to your LAS point cloud and render in 3DS Max you will need to convert the cloud and either use Clouds2Max or the native Point Cloud capabilities of current editions of Max to bring it into the application.

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Re: Colorize Aerial Lidar

Post by jedfrechette » Tue Nov 15, 2016 3:35 pm

PDAL (opensource) works great for this:

http://www.pdal.io/workshop/exercises/a ... ation.html
Jed

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Re: Colorize Aerial Lidar

Post by jrbrown » Wed Nov 16, 2016 8:07 am

We currently use Lastools (specifically LASCOLOR) and have no issues whatsoever. It's easy to use and quick.

https://rapidlasso.com/lastools/

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Re: Colorize Aerial Lidar

Post by Poux » Wed Nov 16, 2016 1:54 pm

PDAL works great, else, more user friendly, the software FME (starting 2015) which has functions and reader/writer for point clouds. One function for colorizing : https://knowledge.safe.com/articles/109 ... louds.html
Florent POUX
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