Request for buildings/structure projections for nice perspective.  

Got some great idea or a feature request? Post it here and discuss it. The most requested concepts are usually implemented, as Autopano Pro / Giga is very community driven.
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manuel rosario
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Request for buildings/structure projections for nice perspective.

by manuel rosario » Tue Feb 15, 2011 8:23 am

Hello,

Request for projections applicable to buildings/structures for nice perspective, if not hard to implement.
Examples are in the link below: thank you.

http://www.tawbaware.com/projections.htm


Manny
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by klausesser » Tue Feb 15, 2011 3:02 pm

The "compressed rectilinear projection" seems to be THE tool for shooting very wide angles.

Thanks for linking!

best, Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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by GURL » Wed Feb 16, 2011 1:22 pm

klausesser wrote:The "compressed rectilinear projection" seems to be THE tool for shooting very wide angles.

Squeezed like that:




Last edited by GURL on Wed Feb 16, 2011 1:23 pm, edited 1 time in total.
Georges

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by klausesser » Thu Feb 17, 2011 12:22 am

GURL wrote:
klausesser wrote:The "compressed rectilinear projection" seems to be THE tool for shooting very wide angles.

Squeezed like that:

Hey Georges - great!

best, Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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by SimDC » Thu Feb 17, 2011 1:07 am

We need this ! (core, plugin or stand-alone)

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by GURL » Thu Feb 17, 2011 9:30 am

klausesser wrote:Hey Georges - great!

Thank you! Like high DR images which look like ordinary images (no HDR look), very wide squeezed rectilinear images can look like ordinary images (no fisheye look) so that this technique is very difficult to promote! Both techniques are enabling images which would be impossible if said techniques were not available.
Georges

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manuel rosario
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by manuel rosario » Sun Feb 27, 2011 5:14 pm

The images is composed of 5 images in portrait position, eos50d, 24mm (12-24mm sigma).

The first image is stitched by APG 2.5 cylindrical.

The second is Squeezed Rectilinear stitched by PTAssembler.

Could we request for similar projection (squeezed rectilinear) so that structures will be presented more pleasing.

Best regards and thank you.




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by klausesser » Sun Feb 27, 2011 5:20 pm

manuel rosario wrote:The images is composed of 5 images in portrait position, eos50d, 24mm (12-24mm sigma).

The first image is stitched by APG 2.5 cylindrical.

The second is Squeezed Rectilinear stitched by PTAssembler.

Could we request for similar projection (squeezed rectilinear) so that structures will be presented more pleasing.

Best regards and thank you.

Manuel - using the horizontal-line-tool you can do the same inside of APG. It works fine up to 110-120°. I used it up to 150° - had to do heavy undistortion in Photoshop.

Using vertical- and horizontal-line too in combination you can straighten very well - up to the FOV i mentioned above. You wouldn´t nee PTAssembler for that.

best, KLaus

P.S.: i would strongly suggest to shoot symetrical - which means in such a case to shoot not only one row horizontal and one row up, but also one row down though you wouldn´t want to see it in the image later. For undistort the shgoot later it´s easier to have a symmetrical shoot.
Or you do one row slanted up and one row slanted down.

How "pleasing the structures are presented" is a question of focal length and the numbers of shots you make.
Last edited by klausesser on Sun Feb 27, 2011 5:27 pm, edited 1 time in total.
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by manuel rosario » Sun Feb 27, 2011 5:56 pm

Hi Klaus,

Thank you very much for the tips, noted and I will try.

The space in front is so tight so I used a wide angle.

Pleasing for me means the horizontal and vertical structural lines should be straight.

I am assuming that in addition to the APG projections (4), we can make our own or customized projection, manually.

Best regards,

Manuel.
Canon EOS20d, 50d, sigma 12-24, samyang 8mm FE, 4GB ram, 2.53 GHz MacBook Pro 13.3 Snow 10.6.8, Panosaurus, Nodal Ninja NN3II, AutopanoGiga+PTP, KRPano Unlimited, Photomatix4, onOne PhototoolsPro 2.6 and Perfect Resize 7, Noiseware Pro, Topaz Suite, PS CS5.

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by klausesser » Sun Feb 27, 2011 6:50 pm

manuel rosario wrote:I am assuming that in addition to the APG projections (4), we can make our own or customized projection, manually.

.

???

best, Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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by manuel rosario » Mon Feb 28, 2011 2:21 am

Hi Klaus,

Manuel - using the horizontal-line-tool you can do the same inside of APG. It works fine up to 110-120°. I used it up to 150° - had to do heavy undistortion in Photoshop.

This might be a tedious procedure, whereas if one special projection like squeezed rectilinear could be added, it will be ideal for structures. Cylindrical projection works well with sceneries or outdoor without hor/vert lines.

Best regards,

Manuel
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by Michael Ezra » Mon Feb 28, 2011 4:30 am

I agree, this is a must to have feature. I had to postpone using APG for city panoramas until "compressed rectilinear projection" is implemented.

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by hankkarl » Mon Feb 28, 2011 5:35 am

Have you tried a spherical projection? (or mercator?)

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by manuel rosario » Mon Feb 28, 2011 6:22 am

Hello Hankari,

I have tried spherical and mercator and it is similar to cylindrical with horizontal lines curved.

Best regards

Manuel
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by AlexandreJ » Mon Feb 28, 2011 11:19 am

We will propose a lot of projection for APP/APG v3.0. This is the top priority on the list.
BTW: we already started to work on this subject and in a few weeks, we'll share something that make usage of such projections.

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by klausesser » Mon Feb 28, 2011 2:44 pm

manuel rosario wrote:This might be a tedious procedure, whereas if one special projection like squeezed rectilinear could be added, it will be ideal for structures. Cylindrical projection works well with sceneries or outdoor without hor/vert lines.
l

I doubt you can handle extreme distortions just by choosing an appropriate projection.
I did a shot in an also very tight space using an 85mm and got an angle of around 150° for being planar-projected.
I did it by using the line tools 3 years ago. Had to use VERY massive Photoshopping to correct extreme distortions caused ba the extremely wide angle.

http://www.klausesser.de/MARTa/MARTa.html

best, Klaus
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by manuel rosario » Mon Feb 28, 2011 2:52 pm

Hi Klaus,

Seen your pano and you did it very well.


Hi Alexander,

I am happy that you are considering the request for various projections.


Best regards to both,

Manuel
Canon EOS20d, 50d, sigma 12-24, samyang 8mm FE, 4GB ram, 2.53 GHz MacBook Pro 13.3 Snow 10.6.8, Panosaurus, Nodal Ninja NN3II, AutopanoGiga+PTP, KRPano Unlimited, Photomatix4, onOne PhototoolsPro 2.6 and Perfect Resize 7, Noiseware Pro, Topaz Suite, PS CS5.

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by AlexandreJ » Mon Feb 28, 2011 3:00 pm

klausesser wrote:I did it by using the line tools 3 years ago. Had to use VERY massive Photoshopping to correct extreme distortions caused ba the extremely wide angle.

We presented a solution for that too during 4st Autopano User Meeting. It will be part of the new projections modes.

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by klausesser » Mon Feb 28, 2011 4:24 pm

AlexandreJ wrote:
klausesser wrote:I did it by using the line tools 3 years ago. Had to use VERY massive Photoshopping to correct extreme distortions caused ba the extremely wide angle.

We presented a solution for that too during 4st Autopano User Meeting. It will be part of the new projections modes.

Hey Alexandre - i´m curious! :cool: Too bad i couldn´t be there like the year before.

best to you, Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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by mountaintb » Tue Apr 05, 2011 8:50 pm

you know how much I am interested in that projection...!!!

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by marco-pano » Sun May 15, 2011 11:40 am

Hi Alexandre,
As Klaus, I didn't attend the 4st user meeting and would like to learn more about Autopano v3.0 proposals for other projections (missing for a long time).
Beside projections based on mapping target (not so adapted to panorama), some projections proposed like "Compressed Rectilinear" (PTAssembler) or "Panini General" (Hugin) may give Autopano users more freedom to render partial panoramas.
Alexandre, can you give more info or video demonstration on this future ?+
Marco, Paris ;)
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by Michael Ezra » Mon May 16, 2011 5:31 am

+1!!!


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