Model Railroad backdrops from Streetview

[Simon Ansley]

Hello,

I'm interested in using Hugin to try to generate backdrops for a model
railroad. Scale is 'N', so eventually I'll hopefully end up with an
image perhaps 200mm / 8" high and 2.4m / 8' or more long which can be
printed, trimmed of sky etc, and then stuck to the backboard.

Source pictures would be from Streetview. An example I'm playing with is
the Paper mill located on Point Basse Ave, Nekoosa, Wi:

https://www.google.com/maps/@44.3143628,-89.8977486,3a,90y,123.77h,92.67t/data=!3m6!1e1!3m4!1sm3nH_h4N5JTscONhqw2xAg!2e0!7i16384!8i8192?entry=ttu

Can anyone point me at a suitable tutorial or some settings as a
starting point - the only similar tutorials I've found have been
'planar' buildings parallel to the street, and this is anything but!

Thanks,

Simon Ansley

[Claudio Rocha]

Someone asked something similar here: https://groups.google.com/g/hugin-ptx/c/WF4WKBYF3xc

The procedure is almost the same as when you stitch images from a scanner.

Since the camera is moving for every picture, you would need to assign a different lens to each of the images (select each image, right click and select Lens > New Lens), and set the geometry optimization to custom parameters. In the Optimizer right click on camera translation and set it to "select all". But the main issue you are going to find using street view is that from one photo to the next the camera will have moved a few meters, and the perspective of the buildings depicted will be different. 

[Gunter Königsmann]

Another problem will be: if the street view camera crosses a street one picture will look into the crossing street from the left. The next will look at it from the front and the following picture looks at it from the right. You have one picture of a balcony from the left and one from the right, but for stitching you would need it from the front... ...no matter where you stitch together these pictures these items won't fit: when stitching things recorded from several perspectives nothing should be oriented in Z direction.

Kind regards,

    Gunter