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Author Topic: build DEM  (Read 852 times)

Colleen Brooks

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build DEM
« on: May 31, 2023, 07:54:09 PM »
I am trying to create a DEM, but it stays greyed out. Ive run the Point Cloud, texture, mesh etc.  But it still stays greyed out.  what do i need to do in order to be able to create a DEM?

Paulo

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Re: build DEM
« Reply #1 on: May 31, 2023, 09:17:03 PM »
Hello,

You should first save the project in psx format before generating DEM....
Best Regards,
Paul Pelletier,
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angieu

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Re: build DEM
« Reply #2 on: June 01, 2023, 06:41:27 PM »
Hi!

Is my first time using Agisoft Metashape. I'm trying to create a DEM using digital aerial photos, but the DEM option is not available. Can someone please help me?
I would really appreciate it



angieu

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Re: build DEM
« Reply #3 on: June 01, 2023, 06:42:59 PM »
Hi!

Is my first time using Agisoft Metashape. I'm trying to create a DEM using digital aerial photos, but the DEM option is not available. Can someone please help me? (I attached a screenshot)
I would really appreciate it

Paulo

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Re: build DEM
« Reply #4 on: June 01, 2023, 07:52:23 PM »
Hello angieu,

the images are aligned but camera is not calibrated (NC)...It needs to be so as to orthorectify them,,,Can you provide a screen capture of camera calibration window (from tools>Camera calibration....

What type of images are these )scanned, digital,...)?
Best Regards,
Paul Pelletier,
Surveyor

Corensia

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Re: build DEM
« Reply #5 on: June 02, 2023, 08:05:56 AM »
Hi Angieu,

I think the problem might be that your images aren't geotagged.
Metashape requires GNSS data either on the image metadata or with GCPs added in the project to create DEMs and Orthomosaics.

Go to the reference tab and see if your images have GNSS metadata.

If not, you might be able to add them if your drone saves the geotagging data.
Which drone and camera were you using?