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Author Topic: Tie Points Export  (Read 6863 times)

hadiyana

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Tie Points Export
« on: September 17, 2013, 11:50:04 AM »
Hi Folks,

My work on UAV photogrammetry needs combined processing using Agisoft for automatic model build and Summit evolution for manually plot ground points using a 3D glasses. The problem is, Summit needs Exterior Orientation, Interior Orientation and Tie points from Agisoft. EO and IO already provided by Agisoft. How can I get tie points between photos data exported to other file (txt maybe)?

Thanks,
hadiyana

Alexey Pasumansky

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Re: Tie Points Export
« Reply #1 on: September 17, 2013, 12:11:50 PM »
Hello hadiyana,

You can export matching points in bundler format. If you require more specific export format you can use Python scripts.
Best regards,
Alexey Pasumansky,
Agisoft LLC

hadiyana

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Re: Tie Points Export
« Reply #2 on: September 17, 2013, 12:18:57 PM »
Hi Alexey, thanks four your very fast respond

How can I export matching points in bundler format? Is it Export Cameras then I choose Bundler (.out). I see lots of numbers If I open the .out file with wordpad, what does it mean?

Thanks,
Hadiyana

Alexey Pasumansky

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Re: Tie Points Export
« Reply #3 on: September 17, 2013, 12:35:07 PM »
Hello Hadiyana,

Here is link to the page with bundler format specification:
http://www.cs.cornell.edu/~snavely/bundler/bundler-v0.4-manual.html#S6


Best regards,
Alexey Pasumansky,
Agisoft LLC

hadiyana

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Re: Tie Points Export
« Reply #4 on: September 17, 2013, 01:02:11 PM »
Hi Alexey,

thanks for the link. It seems that I have to modified the bundler format into files that I want.

I'll try to make two output files format like this:

1 st file:
PhotoId<tab>tie_point_Num<tab>XPhotoCoord<tab>YPhotoCoord
note: The Coordinates are Camera/photo coordinates

2 nd file:
tie_point_Num<tab>XCoord<tab>YCoord<tab>ZCoord
note: The Coordinates are UTM/world coordinates

Is there any easy way to modified the bundler file into files that I want?
Or I have to use the Phyton script to do that?

Thanks,
Hadiyana

Alexey Pasumansky

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Re: Tie Points Export
« Reply #5 on: September 17, 2013, 02:49:56 PM »
Hello Hadiyana,

If you can transform bundler output in the required format, then it's easier to follow this way, since Python is quite slow and processing hundreds of thousands of points will take quite a long time.

However, if you wish I can send you a sample Python script that should work in the described way (at least I hope so), just PM your e-mail address.
Best regards,
Alexey Pasumansky,
Agisoft LLC

hadiyana

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Re: Tie Points Export
« Reply #6 on: September 17, 2013, 03:03:19 PM »
Hai Alexey,

thanks so much for your kind help, I'll PM you my e-mail address.

Thanks,
Hadiyana