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Author Topic: ISPRS ground filtering algorithm tests for PhotoScan  (Read 2819 times)

Thibaud Capra

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ISPRS ground filtering algorithm tests for PhotoScan
« on: March 13, 2017, 12:31:15 PM »
Hello,
I'd like to put the ground filtering algorithm included in PhotoScan to the test by running it on the ISPRS dataset. (See Sithole & Vosselman, 2004)

I have the 15 datasets at my disposal and would like to run the tests and compare its results to some other ground filtering algorithm to assess its relevance in my data processing and production line.

If these tests have already been ran by someone I'd love to hear from them!

Elsewise, my files are in .TXT format, any idea how I could run these in PhotoScan?

Here's the .TXT general format:

X        Y        Z        Type

Type is 0 or 1, translating into the given point belonging to ground or not.

Any help is appreciated.
Best regards.
--
Thibaud CAPRA
Master Student in Geodetic Engineering, Cartography & Surveying
Master Thesis in Automated Processing of UAV-based Photogrammetric Data (ResearchGate Link)
INSA de Strasbourg, FRANCE
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Thibaud Capra

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Re: ISPRS ground filtering algorithm tests for PhotoScan
« Reply #1 on: March 14, 2017, 11:53:09 AM »
Bumping topic.

I tried to import the point cloud by tricking the software into opening an OBJ mesh without faces and only vertices but it doesn't work!

Any idea how I could get these XYZ/OBJ files in PhotoScan to be filtered?

Thanks in advance.
Best regards.
--
Thibaud CAPRA
Master Student in Geodetic Engineering, Cartography & Surveying
Master Thesis in Automated Processing of UAV-based Photogrammetric Data (ResearchGate Link)
INSA de Strasbourg, FRANCE
--

xyz_rgb

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Re: ISPRS ground filtering algorithm tests for PhotoScan
« Reply #2 on: March 20, 2017, 02:48:15 AM »
bumping too

how to filtering ground data in .las (dense cloud classify filter ground)
need advice from developer

thanks

Thibaud Capra

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Re: ISPRS ground filtering algorithm tests for PhotoScan
« Reply #3 on: March 20, 2017, 11:29:41 AM »
So far one can't import point clouds in PhotoScan, only meshes.

Maybe in an upcoming update!
Best regards.
--
Thibaud CAPRA
Master Student in Geodetic Engineering, Cartography & Surveying
Master Thesis in Automated Processing of UAV-based Photogrammetric Data (ResearchGate Link)
INSA de Strasbourg, FRANCE
--