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Author Topic: Agisoft PhotoScan 1.1.0 pre-release  (Read 100460 times)

Alexey Pasumansky

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Re: Agisoft PhotoScan 1.1.0 pre-release
« Reply #180 on: January 08, 2015, 04:30:31 PM »
Hello Cavi_Ing,

Tie points are actually sparse cloud points that you see in the Model view. They have at least two projections each, meaning that these are key-points that have been matched on two or more images (therefore "transferred" to tie-points).

When tie-point limit is used PhotoScan will leave only most reliable tie-points on each photo to fit the threshold, so it will results in lower number of sparse cloud points.

Using very high key-point and tie-point limits will result in longer processing time and may also affect the resulting alignment due to the fact that less reliable key-point could be matched.
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Alexey Pasumansky,
AgiSoft LLC

Mohammed

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Re: Agisoft PhotoScan 1.1.0 pre-release
« Reply #181 on: January 15, 2015, 03:29:54 PM »
Hello Cavi_Ing,

Tie points are actually sparse cloud points that you see in the Model view. They have at least two projections each, meaning that these are key-points that have been matched on two or more images (therefore "transferred" to tie-points).

When tie-point limit is used PhotoScan will leave only most reliable tie-points on each photo to fit the threshold, so it will results in lower number of sparse cloud points.

Using very high key-point and tie-point limits will result in longer processing time and may also affect the resulting alignment due to the fact that less reliable key-point could be matched.

Hi Alexexy,
So what number you suggest to put into Tie point limit?
and if i used 1000 tie point  limit is it will effect on the quality of 3d model?
other question,
what about if i put high number into Key point and put the tie point to Zero, then clean the sparse point cloud by using the Gradual Selection then optimize camera, Is it the same of using Tie point to 1000?


 

Alexey Pasumansky

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Re: Agisoft PhotoScan 1.1.0 pre-release
« Reply #182 on: January 15, 2015, 03:54:02 PM »
Hello tornado2011,

The same thing can be achieved if you use Thin Point Cloud option in the Tools Menu after aligning with zero limit for the Tie points.

Using gradual selection removes points from the cloud based on the different criteria.
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Alexey Pasumansky,
AgiSoft LLC

ThomasVD

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Re: Agisoft PhotoScan 1.1.0 pre-release
« Reply #183 on: January 20, 2015, 10:09:34 PM »
This seems like it might be an error lol. Not sure if it's only since the new release but at least I've never seen it before :)

Processing 206% done!

Alexey Pasumansky

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Re: Agisoft PhotoScan 1.1.0 pre-release
« Reply #184 on: January 21, 2015, 12:55:23 AM »
Hello Thomas,

This problem has been mentioned in the Bug Reports board: http://www.agisoft.com/forum/index.php?topic=3198
In the most cases it is related to the presence of the markers. The fix will be included in the next update of the version 1.1.
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Alexey Pasumansky,
AgiSoft LLC

ThomasVD

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Re: Agisoft PhotoScan 1.1.0 pre-release
« Reply #185 on: January 22, 2015, 11:19:06 AM »
Ok thanks, indeed the same problem Pjenness was having: tried to align pictures with manual markers placed, and it just kept looping the same three console lines over and over :)