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Why generate arc of point clouds

alignment error
1 (20%)
other
4 (80%)

Total Members Voted: 5

Author Topic: arc of point clouds  (Read 4866 times)

geochina

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arc of point clouds
« on: August 31, 2012, 11:43:59 AM »
I use photoscan to process aerial images?but I get the point clouds that is not a flat,is the arc of point clouds. How to solve this problem ? This is alignment error?

JMR

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Re: arc of point clouds
« Reply #1 on: August 31, 2012, 01:46:16 PM »
Bad calibration.
Autofocus enabled?
Sensor-shift or lens shift IS enabled?

Alexey Pasumansky

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Re: arc of point clouds
« Reply #2 on: September 03, 2012, 03:33:35 PM »
Hello geochina,

In case of such aligning results of aerial data we recommend to optimize the photo alignment using camera coordinates (if any) with the corresponding Camera Accuracy parameter in the Ground Control settings.
Some times several optimizations is required to fix such "bowl-effect".
Best regards,
Alexey Pasumansky,
Agisoft LLC

EGuerra

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Re: arc of point clouds
« Reply #3 on: November 26, 2012, 12:29:15 AM »
Geochina good afternoon. Could you correct the problem  of the bowl effect? We have a similar problem with a strip of 30 kilometers. Regards

Eduardo