[hugin-ptx] Re: long view of street?

2011-08-01 Thread kfj


On 1 Aug., 19:24, Andreas Metzler  wrote:

> There was something like this in ct recently
https://www.heise.de/artikel-archiv/ct/2011/16/152_Videokunst-Zeitraf...

You are right, that was it! No surprise I couldn't find it here. Since
the article costs money, let me link to the software as well:

http://code.google.com/p/vstripe/

Kay

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Re: [hugin-ptx] CRITICAL: join us to nuke the pesky bug that is plaguing the fast preview

2011-08-01 Thread Frederic Da Vitoria
2011/8/1 Gnome Nomad 

> Frederic Da Vitoria wrote:
>
>> 2011/7/29 Yuval Levy mailto:goo...@levy.ch>>
>>
>>
>>On July 27, 2011 05:24:44 AM Frederic Da Vitoria wrote:
>> > I still have a mono-processor laptop from 2002 running Windows XP.
>> > Would it help if I did a few tests on it?
>>
>>sure!  the more data points we have, the better.
>>
>>
>> I found one project which hanged on my Intel Core 2 Duo T6670 (Vista). I
>> tested it on my old Intel Pentium 4 M 1.8 GHz (XP) and it hanged in a
>> slightly different way (I got a little more of the preview window on the
>> Pentium M before being stuck while on the Core 2 I got a completely empty
>> window). I don't have any older machine. I can put my hands on 2 years old
>> Celeron XP computers, if it's any use.
>>
>
> Whatever version is currently in 64-bit Debian Sid gave me the hang
> yesterday after I (mistakenly) did a distribution-upgrade. The upgrade
> (among other things) got rid of the NV (open source video driver for NVidia
> hardware) and forced me to use the proprietary (binary) NVidia video
> drivers. That changed the GLX library used. The hang happened on a
> uniprocessor machine.
>

Thanks Gnome Nomad, I forgot about the video cards. The Pentium 4 M has a
ATI Mobility Radeon 7500 and the T6670 has a NVidia GeForce 9300M GS

-- 
Frederic Da Vitoria
(davitof)

Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org

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[hugin-ptx] Re: long view of street?

2011-08-01 Thread Andreas Metzler
kfj <_...@yahoo.com> wrote:
[...]
> sorry to be so vague, but I couldn't find the source just now: I read
> quite recently about someone who emulated a line scan camera with a
> video camera. If you can drive by slowly and always only take the
> central vertical strip from successive video images, you can create a
> line scan.

> The article was even more involved insofar as the software doing the
> processing could do other things than just combining successive
> vertical strips to create strangely distorted-looking artificial
> images - can anyone else remeber that article? Silly me for not
> bookmarking it straight away :(

There was something like this in ct recently
https://www.heise.de/artikel-archiv/ct/2011/16/152_Videokunst-Zeitrafferaufnahmen-in-einem-Bild

cu andreas
-- 
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so grateful to you.'
`I sew his ears on from time to time, sure'

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[hugin-ptx] Re: long view of street?

2011-08-01 Thread kfj


On 1 Aug., 18:47, kfj <_...@yahoo.com> wrote:

> The article was even more involved insofar as the software doing the
> processing could do other things than just combining successive
> vertical strips to create strangely distorted-looking artificial
> images - can anyone else remeber that article? Silly me for not
> bookmarking it straight away :(

oh, yes, and I think it was in a 3D-scanning context - you need a
parallax-free method there, as well.

> Kay

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[hugin-ptx] Re: long view of street?

2011-08-01 Thread kfj


On 1 Aug., 11:51, paul womack  wrote:

> I think I need some kind of (dimly remembered)
> line scan process, so that a large number of "micro"
> photographs, all perfectly perpendicular to
> the overall line of the frontage.

sorry to be so vague, but I couldn't find the source just now: I read
quite recently about someone who emulated a line scan camera with a
video camera. If you can drive by slowly and always only take the
central vertical strip from successive video images, you can create a
line scan.

The article was even more involved insofar as the software doing the
processing could do other things than just combining successive
vertical strips to create strangely distorted-looking artificial
images - can anyone else remeber that article? Silly me for not
bookmarking it straight away :(

Kay

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Re: [hugin-ptx] long view of street?

2011-08-01 Thread Frederic Da Vitoria
Hello

2011/8/1, Wirz :
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hi Paul,
>
> that sound pretty much like what I tried a few month ago:
>
> http://tilia.dyndns.org:8000/img_3029-img_3071_fused.jpg
>
> My result is far from perfect of course, but it should do as a proof of
> concept.  I took one photo of each house (to preserve window sills etc)
> and one of each pair of houses (to preserve walls in front gardens, the
> roof etc).  Controll points must all be in one plain (this is very
> sensitive: 10cm matter very much).  All photos have been cropped to
> overlap only a little.

You mean CP from each photo pair? Because I don't see how you can hope
to find points within 10cm of a single plan on such a long image!

-- 
Frederic Da Vitoria
(davitof)

Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org

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Re: [hugin-ptx] long view of street?

2011-08-01 Thread David Haberthür
Hy Paul.

On 01.08.2011, at 11:51, paul womack wrote:

> In my town we have a nice high street. Like most
> high streets (in the UK) it's a good deal longer
> than it is wide (!!).
> 
> I would like to make an image of all the shop fronts;
> however, if I took a normal panorama, I simply can't get
> enough distance to make a sensible/pleasing image.

[snip]

> Can anyone either describe suitable techniques,
> or point me at samples, examples, tutorials,
> discussions etc?

Yuval made a (fairly advanced) tutorial, which should give you exactly the 
desired result: http://wp.me/paLeH-uq

Habi

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Re: [hugin-ptx] long view of street?

2011-08-01 Thread Wirz
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi Paul,

that sound pretty much like what I tried a few month ago:

http://tilia.dyndns.org:8000/img_3029-img_3071_fused.jpg

My result is far from perfect of course, but it should do as a proof of
concept.  I took one photo of each house (to preserve window sills etc)
and one of each pair of houses (to preserve walls in front gardens, the
roof etc).  Controll points must all be in one plain (this is very
sensitive: 10cm matter very much).  All photos have been cropped to
overlap only a little.

> I think I need some kind of (dimly remembered)
> line scan process, so that a large number of "micro"
> photographs, all perfectly perpendicular to
> the overall line of the frontage.

that's basically what I did.

cheers, lukas

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[hugin-ptx] long view of street?

2011-08-01 Thread paul womack

In my town we have a nice high street. Like most
high streets (in the UK) it's a good deal longer
than it is wide (!!).

I would like to make an image of all the shop fronts;
however, if I took a normal panorama, I simply can't get
enough distance to make a sensible/pleasing image.

If I make a mosaic panorama, the perspective
of individual shops will be wrecked (doorways,
corbels, etc) are deeper than the murals
that are the typical subject of a mosaic.

I think I need some kind of (dimly remembered)
line scan process, so that a large number of "micro"
photographs, all perfectly perpendicular to
the overall line of the frontage.

Can anyone either describe suitable techniques,
or point me at samples, examples, tutorials,
discussions etc?

Oh - my equipment is minimal, and liable to
stay that way.

 BugBear

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