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Author Topic: Distorted ortho?  (Read 4810 times)

Pirate

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Distorted ortho?
« on: October 06, 2016, 03:02:43 PM »
I am using a drone for basic survey work. The image I am producing seems quite inaccurate when overlayed on Google Earth - see attachment.
I'm not sure if the issue is in the image capture with the drone or in the processing with Photoscan.
How can I resolve which it is and how to fix it?

stihl

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Re: Distorted ortho?
« Reply #1 on: October 06, 2016, 03:20:49 PM »
Your ortho is wrongly projected due to improper geo-referencing.

First off; how did you geo-reference the project

Pirate

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Re: Distorted ortho?
« Reply #2 on: October 06, 2016, 03:34:59 PM »
I am using Mission Planner by Ardupilot which records coordinates then puts them on the images.

Alexey Pasumansky

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Re: Distorted ortho?
« Reply #3 on: October 06, 2016, 04:23:42 PM »
Hello Pirate,

If you can resave the project in PSZ format (PhotoScan Archive) with the dense cloud / mesh removed, and send it to support@agisoft.com, we can check what could be wrong with the referencing.

Best regards,
Alexey Pasumansky,
Agisoft LLC

Pirate

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Re: Distorted ortho?
« Reply #4 on: October 17, 2016, 11:35:30 AM »
Project sent to support.
Thanks

Alexey Pasumansky

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Re: Distorted ortho?
« Reply #5 on: October 17, 2016, 01:50:08 PM »
Hello Pirate,

Thank you for sending the project file. We have checked it and it looks like the coordinates do not fit the real camera positions (you can see that the images related to the turn have the coordinates input as they lay on the straight flight line).
Best regards,
Alexey Pasumansky,
Agisoft LLC

Pirate

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Re: Distorted ortho?
« Reply #6 on: October 17, 2016, 02:07:55 PM »
OK thanks. Now I know what to work on.