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Author Topic: Galleria Vittorio Emanuele II di Milano  (Read 13007 times)

kris3d

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Galleria Vittorio Emanuele II di Milano
« on: September 16, 2012, 02:40:09 PM »
images absolutely do not want to align




14mm lens.
With or without calibration does not want to work

Link to photos
https://www.wetransfer.com/dl/L76FORa6/01ae78e97d2ae75b03ac9315e9e7309f02ceb05fdbac3c13976c82c9d4bd93055000f0515369445
« Last Edit: September 16, 2012, 03:24:17 PM by kris3d »

Alexey Pasumansky

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #1 on: September 16, 2012, 05:42:54 PM »
Hello kri3d,

In EXIF data of the images you've provided there is 50mm focal length which causes wrong alignment.

Also please note that PhotoScan can not reconstruct transparent or mirror surfaces.

However, changing initial calibration parameters (only focal lenght) to more appropriate values gives the following result:

Best regards,
Alexey Pasumansky,
Agisoft LLC

kris3d

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #2 on: September 16, 2012, 08:49:09 PM »
Thank you Alexey very much for your reply.
It's Sunday and I'm bored and asking questions.
But your program so I drew.
Because I sleep at night not only scans :)

Tell me please how can I manually enter the EXIF.
There is an option in PhotoScan.

kris3d

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #3 on: September 16, 2012, 10:38:47 PM »
In this way,
Introduced the 14mm figures. For all product images
For me it does not work.
Align is not correct.

Can you tell me how you did it
Or send me a revised this scene settings

http://imageshack.us/f/31/29740566.jpg/

http://imageshack.us/f/341/28954717.jpg/

http://imageshack.us/f/507/98663511.jpg/
« Last Edit: September 16, 2012, 10:43:40 PM by kris3d »

Alexey Pasumansky

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #4 on: September 16, 2012, 10:44:33 PM »
Hello kris3d,

PhotoScan uses EXIF data (if any) as initial calibration parameters (Tools -> Camera calibration).

To align your data we have changed only fx and fy parameters in Camera calibration dialog (cx = width /2 and cy = height /2, other parameters set as zero).

On your screenshots there are no values for cx and cy.
« Last Edit: September 16, 2012, 10:54:01 PM by Alexey Pasumansky »
Best regards,
Alexey Pasumansky,
Agisoft LLC

kris3d

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #5 on: September 16, 2012, 11:18:53 PM »
Alexey  I did exactly like you, but for me it does not work.
The effect is very strange

http://imageshack.us/f/339/36581855.jpg/

Alexey Pasumansky

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #6 on: September 17, 2012, 01:52:30 PM »
Hello kris3d,

Could you please specify the settings you are using for camera alignment (accuracy, preselection, number of points per image)?

With the same calibration settings it works stable on High/Medium with 40 000 points per photo.
Best regards,
Alexey Pasumansky,
Agisoft LLC

kris3d

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Re: Galleria Vittorio Emanuele II di Milano
« Reply #7 on: September 17, 2012, 02:04:30 PM »
I used a new experimental technique.
And some secret magic spells.
And all began to work