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Author Topic: Alignment - Moving Photos 40+ meters away from geotag  (Read 5495 times)

KrisRunner

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Alignment - Moving Photos 40+ meters away from geotag
« on: May 29, 2025, 11:54:55 PM »
Can someone help me understand how this is happening and if there is a technique used to help with alignment.

So when I do the alignment step, I get photos that are being place way away from the geotag location. When I look at the Error results it’s -32 meters off from its original position (see the image). I know this is not RTK and just the onboard GNSS receiver, but it should not be off by 30 meters. I can even tell with looking at the alignment that these photos are supposed to be somewhere else. I have the error set at a default 10 meters when importing. My question is.

Is there a way to say, listen if you are 32 meters off then either don’t use it and not align it or somehow force it to stay in the location and try matching the tie points.

I get why this is happening with the image looking very similar, but I thought that the setting for the lat and long error (10 meters)  will limit the photo from moving more than 10 meters. Is this not true ?

Paulo

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Re: Alignment - Moving Photos 40+ meters away from geotag
« Reply #1 on: May 30, 2025, 04:44:59 AM »
Hello Kris,` :

can you share a representative sample of your survey?

We could have a look at it!
Best Regards,
Paul Pelletier,
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KrisRunner

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Re: Alignment - Moving Photos 40+ meters away from geotag
« Reply #2 on: May 30, 2025, 05:49:43 PM »
Hello,
Thanks for the reply.

What are you looking for exactly ?

The report , the dataset or more screenshots ?

Thanks.

Paulo

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Re: Alignment - Moving Photos 40+ meters away from geotag
« Reply #3 on: May 30, 2025, 08:22:09 PM »
Hello Kris,

it would be good if you can share a link with images along with its geotags...
Best Regards,
Paul Pelletier,
Surveyor

olihar

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Re: Alignment - Moving Photos 40+ meters away from geotag
« Reply #4 on: June 02, 2025, 04:55:29 PM »
This looks like images from consumer drone, you will never get any accurate results.