Hey all, let's get real Syv wants to make a picture of one block of houses, not build an experimental slit camera or invent a new technology.
He needs to take a series of overlapping photos from the other side of the street, each one pointing more or less straight at the house fronts opposite. Then use Hugin's mosaic mode to align/warp them -- with control points only on the plane of the house fronts! -- and a lot of hand masking in Photoshop to blend them. Hand masking is needed because the seam lines must be placed where the change of perspective is not noticeable; and it allows you to deal with things like trees, poles, etc in front of the houses. In fact by taking enough pictures with both vertical and horizontal displacements, one can often make poles and wires disappear, but there is no way to automate that. I'm not saying it couldn't be done with a slit camera -- it has been done often with video slit scans, but the image quality is hardly 'architectural'. Or a sweep camera. But both of those approaches are technically harder than the tried-and-true mosaicing method, which has been in regular use since the renaissance, Here is a brilliant modern example by Michael Koller: http://www.seamlesscity.com/city%20_scene4.html -- Tom On Nov 22, 2:17 am, Ian Tindale <[email protected]> wrote: > These days I usually set that camera to pan in the direction of right to > left, with the camera held portrait. > > On 21 November 2011 21:16, JohnPW <[email protected]> wrote: > > > > > > > > > > > That's interesting. It looks like it uses the camera's orientations > > sensor to select the angle of the strip of image it captures. As you > > turn the camera the strips stay vertical to the finished panorama. Did > > you sweep from right to left? > > It would be interesting to hack the software (but don't expect me > > to! :-) > > > On Nov 21, 1:48 am, Ian Tindale <[email protected]> wrote: > > > Try this one, and its neighbouring pictures, where I intentionally > > twisted > > > the camera around the roll axis as I swept it across an arc: > >http://www.flickr.com/photos/iantindale/6066091512/in/photostream/ > > > > On 21 November 2011 07:28, JohnPW <[email protected]> wrote: > > > > > That's pretty fun. > > > > Notice how it tried to resolve the parallax problems. It locked onto > > > > the front surface of the the building pretty well, but had a hard time > > > > with distant objects "enclosed" by the building. The objects seen > > > > through the open door and objects reflected in the window glass appear > > > > partial and repeated rather than being sewn together. > > > > You can also see the width of the images it collects to make the > > > > panorama. They're pretty narrow. > > > > > On Nov 18, 1:21 am, Ian Tindale <[email protected]> wrote: > > > > > As an experiment, I shot this by abusing the Sony Sweep Panorama > > feature: > > > >http://www.flickr.com/photos/iantindale/6241529419/—I held the camera > > > > > level and simply walked along in a straight line, pointing the camera > > > > > sideways, starting at one end of that room and ending at the other > > end. > > > > > Obviously I must’ve veered slightly towards it by the time I got to > > the > > > > > end, but it was only a quickie test to see if the technique could be > > > > > applied to shooting panomurals (as I’ve termed them). > > > > > > On 18 November 2011 06:34, kfj <[email protected]> wrote: > > > > > > > On 18 Nov., 00:13, JohnPW <[email protected]> wrote: > > > > > > > On Nov 17, 4:13 pm, kfj <[email protected]> wrote: > > > > > > > > > This is why we now try and coerce 2D hardware to do a 1D job. > > > > > > > > I actually think using a 2D camera might be superior in many > > ways. > > > > > > > Besides ready availability of interchangeable equipment, it > > would > > > > > > > also be more forgiving of camera movement while also allowing > > you to > > > > > > > readily remove moving object artifacts. > > > > > > > That's a point (or two, rather ;-) > > > > > > > And maybe trying to do stay 1D and even 2D is too limiting anyway - > > > > > > eventually, we'll embrace 3D scene reconstruction, and for that > > > > > > purpose parallax becomes an asset. > > > > > > > Kay > > > > > > > -- > > > > > > You received this message because you are subscribed to the Google > > > > Groups > > > > > > "Hugin and other free panoramic software" group. > > > > > > A list of frequently asked questions is available at: > > > > > >http://wiki.panotools.org/Hugin_FAQ > > > > > > To post to this group, send email to [email protected] > > > > > > To unsubscribe from this group, send email to > > > > > > [email protected] > > > > > > For more options, visit this group at > > > > > >http://groups.google.com/group/hugin-ptx > > > > > > -- > > > > > *Ian Tindale* > > > > > -- > > > > You received this message because you are subscribed to the Google > > Groups > > > > "Hugin and other free panoramic software" group. > > > > A list of frequently asked questions is available at: > > > >http://wiki.panotools.org/Hugin_FAQ > > > > To post to this group, send email to [email protected] > > > > To unsubscribe from this group, send email to > > > > [email protected] > > > > For more options, visit this group at > > > >http://groups.google.com/group/hugin-ptx > > > > -- > > > *Ian Tindale* > > > -- > > You received this message because you are subscribed to the Google Groups > > "Hugin and other free panoramic software" group. > > A list of frequently asked questions is available at: > >http://wiki.panotools.org/Hugin_FAQ > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > >http://groups.google.com/group/hugin-ptx > > -- > *Ian Tindale* -- You received this message because you are subscribed to the Google Groups "Hugin and other free panoramic software" group. 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