How to prevent control points in sky  

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HansKeesom
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How to prevent control points in sky

by HansKeesom » Sun May 03, 2015 7:16 pm

Hi,

Been shooting on a day with partly blue skies and beautifull clouds. However, it was windy so the clouds moved a lot. So not a good place to have control points. How to avoid/remove control points in blue and white areas when they are above 30 degrees above the horizontal?

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Destiny
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Re: How to prevent control points in sky

by Destiny » Sun May 03, 2015 9:41 pm

You treat the clouds like moving people and use the Mask Editor Points I guess.. Have you tried to use them...

Destiny...

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Re: How to prevent control points in sky

by klausesser » Sun May 03, 2015 10:18 pm

Destiny wrote:You treat the clouds like moving people and use the Mask Editor Points I guess.. Have you tried to use them...

Destiny...



Guess you´re missing the point. It´s about CPs - not ghosts ;)
Klaus

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Re: How to prevent control points in sky

by HansKeesom » Sun May 03, 2015 10:24 pm

In the end the couds look good but they seems to distort the rest of the picture every now and then. They certainly increase the RMS

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Re: How to prevent control points in sky

by klausesser » Sun May 03, 2015 10:33 pm

HansKeesom wrote:Hi,

Been shooting on a day with partly blue skies and beautifull clouds. However, it was windy so the clouds moved a lot. So not a good place to have control points. How to avoid/remove control points in blue and white areas when they are above 30 degrees above the horizontal?


Delete all links between sky and ground and link the images manually together by correcting each image seperately.

Definitely preferable in this situations is a head writing xml-data for the positions. But you can also have a pattern manually!

Using the masking-tool wouldn´t help much - APG usually blends clouds anyway . . to a certain amount.

If you have ghosts nevertheless: edit them on the equirectangular image using Photoshop. That way you have better control over them.

Klaus

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Re: How to prevent control points in sky

by klausesser » Sun May 03, 2015 10:34 pm

HansKeesom wrote:In the end the couds look good but they seems to distort the rest of the picture every now and then. They certainly increase the RMS



Right!

Klaus

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Re: How to prevent control points in sky

by HansKeesom » Tue May 05, 2015 1:29 am

klausesser wrote:
Delete all links between sky and ground and link the images manually together by correcting each image seperately.

Klaus

Indeed found some bad links with high value between nadir and +50 shots. Deleted them when I saw trouble
klausesser wrote:Definitely preferable in this situations is a head writing xml-data for the positions. But you can also have a pattern manually!

Using the masking-tool wouldn´t help much - APG usually blends clouds anyway . . to a certain amount.

If you have ghosts nevertheless: edit them on the equirectangular image using Photoshop. That way you have better control over them.

Klaus


Still on a manuall head so not using xml. Also not using pattern/template, maybe I shoot do so from one panorama that went perfect by itself.

So far no ghosting, so will leave that for the moment.

Thanks for the tips.

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Re: How to prevent control points in sky

by HansKeesom » Sun May 10, 2015 5:24 pm

Thanks for getting this project done. Was for my own documentation so didn't spend time in photoshop to remove last shadows ;-) Maybe later ;-)

http://alsofjeerbent.nl/panoramas/GarageLeusdenhof/

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Re: How to prevent control points in sky

by leifs » Sun May 10, 2015 10:11 pm

HansKeesom wrote:Still on a manuall head so not using xml.


I have made me a lightweight alternative to my VRdrive, based on Nodal Ninja pole rotator and foot plate.
It is hardware set up for a 30mm FF eq lens and it makes full spheres.
I have "reverse enginered" a XML-file for it. In that way the featureless images in the sky is placed in the right place.
So beeing on a manual head does not exclude using Papywizard import with a XML-file.

leifs

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Re: How to prevent control points in sky

by mediavets » Sun May 10, 2015 10:35 pm

Can we see a photo of your head?

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Re: How to prevent control points in sky

by leifs » Sun May 10, 2015 11:06 pm

this is my lightweight-"head" !!

it has a vertical rotator with 10 click-stops, that suits this spesific setup.
the horisontal rotator has 12 click-stops.

btw: it's for outdoor panoramas so precise parallax adjustments is not important.

leifs
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Last edited by leifs on Sun May 10, 2015 11:14 pm, edited 1 time in total.

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Re: How to prevent control points in sky

by mediavets » Sun May 10, 2015 11:14 pm

What is the NN rotator model you are using on the pitch axis and how do you adjust the pitch whike/when the pole is raised?

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Re: How to prevent control points in sky

by leifs » Mon May 11, 2015 3:50 pm

the magic formula is revealed below :)
10 click -> 36 degrees, which is fine for a 30mm ff eq lens in portrait mode.

I have to lower the pole to change the pitch one click.
The foot-plate makes it easy to continue approximately at the same yaw for each row.

leifs

btw:
the image of the rotators does not match the description
RM10 has 10 clicks, 30 degrees makes n=12 (not 10)
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Re: How to prevent control points in sky

by HansKeesom » Thu May 14, 2015 9:50 am

leifs wrote:
HansKeesom wrote:Still on a manuall head so not using xml.


I have made me a lightweight alternative to my VRdrive, based on Nodal Ninja pole rotator and foot plate.
It is hardware set up for a 30mm FF eq lens and it makes full spheres.
I have "reverse enginered" a XML-file for it. In that way the featureless images in the sky is placed in the right place.
So beeing on a manual head does not exclude using Papywizard import with a XML-file.

leifs

Isn't that the same as saving one panorama "As template" and then using this template for all other panoramas?

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Re: How to prevent control points in sky

by leifs » Thu May 14, 2015 11:52 am

"Save as template...
Autopano saves the links used to create the panorama within a template. This can then be used to create new panoramas with the same configurations.
To re-use a model, you need to specify it in the Group settings (Detection tab) before launching the panorama’s detection."

This is more than just the position of the images.
File/Export to Papywizard produce a XML-file from the pano. This is more like the "what came first, the egg or the bird" question. First you have to position the images in the featureless sky and then you can make a XML-file.

leifs


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