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Author Topic: Reason for limiting Tiepoints?  (Read 1287 times)

holgar

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Reason for limiting Tiepoints?
« on: September 28, 2018, 04:51:08 PM »
Hello, There is one thing I wonder. Why Limiting Tiepoints? I set my Tiepoint limit to "0" to have no Limit in all my Projects.
Is there any issues with that? What would be a case where I want to set a limit? Why is it set not to "0" by default?
greetings, Holger

Alexey Pasumansky

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Re: Reason for limiting Tiepoints?
« Reply #1 on: September 28, 2018, 10:01:53 PM »
Hello Holger,

Rising the limits for the tie point would result in slower processing (long time for the matching stage). Also if the key point is also high, there could be a negative effect of the tie points with the low confidence level included in the sparse cloud that may affect the alignment quality.
Best regards,
Alexey Pasumansky,
Agisoft LLC

holgar

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Re: Reason for limiting Tiepoints?
« Reply #2 on: September 29, 2018, 12:01:25 AM »
Thanks for your reply. The Alignment Stage is usually not timeconsuming on my machiene. So I dont worry about proceccing time in aligment stage.
My thought is. Better have the most Tiepoints as possible and than latter filter out the inacurate ones with Gradual Selection and do a Camera Optimization than.
Do you see an advantage in Limiting the Tiepoints Count over my technique if Proccessing Time does not matter?