Short distance panoramas

[RG]

Hi,

this might be a strange question, but would there be (or what would be) the closest distance to do a panorama of an interior - if I want the result to look natural even at objects being close. This image has two speakers in front. They look skew in front , but are "square". What would be the best way to generate and make this look ok?  :-)

[Erik Krause]

> <https://lh5.googleusercontent.com/-o618tUPGaOs/UI7SU4PzCTI/AAAAAAAAAAU/cUr_58rgUJo/s1600/django0001+Panorama.jpg>

This looks weird. I doubt the fronts of the speakers are really
rectangular to the sides. However, what you see is perspective
distortion, which you can't avoid.

This is not panorama related, it is general to photography. If you want
the fronts to look square (provided they are in reality), you need to
arrange them such that they are parallel to the sensor of your camera.

--
Erik Krause

[mcz...@gmail.com]

I have been doing interior 360's for a local RV dealer. I think its
difficult to find a more close up situation than that. For me, that kind
of distortion often results from setting the 360 field of view
parameters to wide. I usually use 70 degrees or less because I find that
once you start zooming out and trying to include too much into a the
frame, that things start to stretch like silly putty.

This is one I did inside a motor coach. If you start to zoom out, things
that square up in the default view, start to skew.

http://wivirtual.com/tours/wills/ventana3812/

Ray Setzer
WiVirtual.com

> <https://lh5.googleusercontent.com/-o618tUPGaOs/UI7SU4PzCTI/AAAAAAAAAAU/cUr_58rgUJo/s1600/django0001+Panorama.jpg>
>
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[Erik Krause]

Am 29.10.2012 21:34, schrieb mcz...@gmail.com:
> I have been doing interior 360's for a local RV dealer. I think its
> difficult to find a more close up situation than that.

Of course not:
http://tinyurl.com/36mjar


--
Erik Krause

[tracy....@comcast.net]

When I try to send swf files to potential viewers, some (most) say they cannot open the files.  Some get messages that they need to download a program to view?  Any suggestions?

 

Thanks!

Tracy R. Willis

[gravityimage]

Hi Erik, very nice, would you mind telling us a few clues as to how you did those, like what camera and lens, or how you held it in place?

Bill Mumford

[Erik Krause]

Am 30.10.2012 02:46, schrieb gravityimage:
> Hi Erik, very nice, would you mind telling us a few clues as to how you did
> those, like what camera and lens, or how you held it in place?

This wasn't me, it was Michel Thoby:
http://michel.thoby.free.fr/Scholtes/Making-of.html

--
Erik Krause

[RG]

Erik,

thanks for your answer. The thing is that the speakers are rectangular to the sides, but get terribly twisted in the final image. I am using a 21mm lens, and the PTGuiPro application for the panos. Maybe it could be the settings in the software that is causing this? Here is the same situation, but with another setting, which I don't like due to the "bubbly" walls. On the other hand, the speakers do look better.... Which are recommended settings for smaller room interior panos?

Best, R

[PTGui Support]

Have you tried the Vedutismo projection in PTGui? This might work well
for such a scene. For the best result the vanishing point (i.e. the
center of the wall you look into) should be in the center of the
panorama. You'll get some curvature in horizontal and vertical lines though.

In the end it's all compromise: you are attempting to project a wide
angle scene onto a flat surface. This either means that straight lines
will be curved, or edges will be stretched in order to preserve straight
lines.

The only way to get straight lines without stretched corners is by
increasing the distance between the camera and the scene. The lens is
irrelevant: you'll get the same panorama whether you use a 100mm lens or
an 8mm fisheye.

Also see: http://www.ptgui.com/man/projections.html

Joost

On 30-10-2012 13:07, RG wrote:
> Erik,
>
> thanks for your answer. The thing is that the speakers are rectangular
> to the sides, but get terribly twisted in the final image. I am using a
> 21mm lens, and the PTGuiPro application for the panos. Maybe it could be
> the settings in the software that is causing this? Here is the same
> situation, but with another setting, which I don't like due to the
> "bubbly" walls. On the other hand, the speakers do look better.... Which
> are recommended settings for smaller room interior panos?
>
> Best, R
>

> <https://lh4.googleusercontent.com/-_sVa1RACssI/UI_CsZYX-fI/AAAAAAAAAAk/7xcFE869RfI/s1600/django0002+Panorama.jpg>

>
>
>
>
> Den m�ndagen den 29:e oktober 2012 kl. 21:29:33 UTC+1 skrev Erik Krause:
>
> Am 29.10.2012 20:01, schrieb RG:
> > this might be a strange question, but would there be (or what
> would be) the
> > closest distance to do a panorama of an interior - if I want the
> result to
> > look natural even at objects being close. This image has two
> speakers in
> > front. They look skew in front , but are "square". What would be
> the best
> > way to generate and make this look ok?
>
> >
> <https://lh5.googleusercontent.com/-o618tUPGaOs/UI7SU4PzCTI/AAAAAAAAAAU/cUr_58rgUJo/s1600/django0001+Panorama.jpg
> <https://lh5.googleusercontent.com/-o618tUPGaOs/UI7SU4PzCTI/AAAAAAAAAAU/cUr_58rgUJo/s1600/django0001+Panorama.jpg>>
>
>
> This looks weird. I doubt the fronts of the speakers are really
> rectangular to the sides. However, what you see is perspective
> distortion, which you can't avoid.
>
> This is not panorama related, it is general to photography. If you want
> the fronts to look square (provided they are in reality), you need to
> arrange them such that they are parallel to the sensor of your camera.
>
> --
> Erik Krause
>

[Trey Gafford]

Hi Tracy.  swf files had been a problem for me too.  So I changed the way I deliver the pano/tour to my clients.  I have two ways I go about it.  1) I use VPix to create a link  http://www.vpix360.com/  You can use it free for two weeks.  This method requires no server space on your end.  Or, 2) Build my tour using Panotour Pro and upload the files to my server and forward the link to my clients.  Both of these solutions create a link that is viewable on any browser, therefore eliminating any confusion.

Hope this helps,

Trey

--

[tracy....@comcast.net]

Thanks alot Trey!

Tracy R. Willis

[RG]

Joost,

thanks. I'll experiment a bit with it.

:-)