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Topics - jmos

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General / Anyone else having new issues with DJI Phantom images?
« on: October 14, 2020, 08:37:09 AM »
Just recently having issues processing DJI Phantom 4 images, not just me but other work colleague's using their own Phantom 4's as well.

Just the last few jobs, never had these problems before, using same app DJI GS Pro

Issues have been

Some photo's not aligning
camera positions and tie points offset
ortho's out by 40m plus
what seems to be double runs of photos captured?

Have been able to get a final product out by trying different combinations of the following

removing double camera runs
reset and re-align
optimise cameras
change camera accuracy
don't use any camera reference data
use GCP's
reset then re-align all cameras again

Since we didn't have any of these issues before and have not changed our capture or process method, wondering if its a DJI issue?


General / Ortho mosaic, Image artefacts on joins/overlaps
« on: October 29, 2015, 08:59:28 AM »
Hi, I have just trialled Agisoft and created a number of ortho mosaics.
On some of the mosaics I have these image artefacts, seem to be on joins/overlaps.

Other mosaics seem perfect, seamless, all processed the same way?
Any suggestions would be appreciated.
I found the following topic, perhaps this is related, my trial version has ended.
(The real solution is to ground classify your dense point cloud and use a mesh from the ground points when generating your orthomosaic)


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