PanoTools mailing list archive

Mailinglist:PanoTools NG
Sender:panovrx
Date/Time: 6-Mar-2008 01:37:15 +0100
Subject:Re: Timelapse panorama

Thread:


Stabilizing long series of fisheye shots or panoramas is best done 
with dedicated tracking software ... like the free Voodoo tracker
http://www.digilab.uni-hannover.de/docs/manual.html   . These will 
export a 3d  camera track (or a rotation record for mostly static 
cameras) plus a cloud of 3d tracked points. These latter are not 
needed for stabilizing purposes. These programs wont accept fisheye 
shots generally but you can rectilinearise or extract proxy 
rectilinear versions of your footage/panoramas, track that, export 
that track, then stabilise the fisheye shots (or mapped 
equirectangular versions) in a 3d program. eg. open the track in the 
3d program, create a sphere around the camera, map the equi image 
sequence to the sphere, make the sphere the child of the camera, 
clone the camera, smooth the curves of the cloned camera in the curve 
editor, render the stabilised footage with the cloned, smoothed 
camera ... sounds a pain but quicker in the long run I think than 
wrestling with PTGui etc with super long sequences. ...

 this is all to do with stabilising shots and panos not with your 
stitching problems ... you need to have the cameras very high away 
from things with DSLR camera arrays otherwise the parallax issues are 
severe

Peter

--- In #removed#, "pau.cc" <todo@...> wrote:
>
> Hi Rick and Fluvio,
> thanks for your ideas, i'll review them tomorrow and hope they can 
help.
> That second render is a project where I made ptgui look for points 
in  
> each pair, a very mechanical work!
> Fluvio, I recommend you to download the movie and open it in 
quicktime  
> player. Understand that is a cylindrical movie that will be divided 
in  
> eight video projectors.
> Thanks again.
> 
> pau valiente
> www.pau.cc
> 
> 
> 
> On 05/03/2008, at 23:49, Fulvio Senore <mailing@...> wrote:
> 
> > I looked at your postproduction file and I liked it a lot. It is a
> > fascinating video and I am interested in similar works.
> > Anyway I found two problems:
> > - files are too large and take forever to download. I suspect that
> > really few people had the patience to wait so much.-
> > - the image is too wide to fit in my screen (1280x1024) so I can 
only
> > see the central part and I cannot control the movie.
> >
> > Surely handling the whole project is a very heavy task for ptgui. 
I am
> > working at a similar (but smaller) work: a single photo taken 
handheld
> > almost every day from the same location.
> > Letting ptgui create control points among all the photos is makes 
the
> > program run too slow, so I create control points between two  
> > consecutive
> > photos only. Then I sometimes add control points between a photo 
and  
> > the
> > first one, just to avoid a progressive shift in the photo 
positions.
> > In this way I can also load only a limited number of images: I 
only  
> > need
> > to always load the very first one for control points creation. So 
I  
> > can
> > load the first image and all the images taken in a month, 
optimize and
> > save them. Then I can load the same first image and the 
following  
> > month
> > images, optimize and save them being sure that they will match.
> >
> > Maybe you can work in a similar way: create control points among 
the
> > images of the same pano and those of the previous one only, then
> > sometimes create control points among a pano and the first one. 
Load
> > only some images at a time, to save time.
> >
> > I suspect that you will have to review the control points created 
by
> > ptgui looking for wrong ones, mainly in the near field.
> >
> > Good luck!
> >
> > Fulvio Senore
> >
> >
> > pau valiente ha scritto:
> >> Hi again,
> >> I don't know if my first message went correctly to the group, 
if  
> >> not it is below my relpy.
> >> I'm getting more problems than expected, there are lots of 
seams  
> >> between the images and
> >> I'm getting crazy on the optimize process....
> >> Also the size of the project doesn't make things easier, as 
each  
> >> time I open the project
> >> with 900 images it last an hour and a half loading the images.
> >> Here it is a movie of the last result without postproduction:
> >> http://mardeimagenes.com/guadix_expo/carpa01/PANOS/ 
> >> aracena_nuevo.mov (23.4 MB)
> >> http://tinyurl.com/3cxsrh
> >>
> >> and here the result with postproduction and color correction 
(the  
> >> sketchbook and
> >> drawings aren't there yet):
> >> 
http://mardeimagenes.com/guadix_expo/carpa01/PANOS/aracena_post.mov  
> >> (20.0 MB)
> >> http://tinyurl.com/35kavz
> >>
> >> I have improved the results by reducing to the half the size of 
the  
> >> original images like that
> >> the control point generator doesn't miss with small details....
> >>
> >> Thanks for reading,
> >>
> >> pau valiente
> >> www.pau.cc
> >>
> >>
> >>
> >>
> >
> >
> > -- 
> > Yahoo! Groups Links
> >
> >
> >
>




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