Extracting subframes from spherical frame

[Redrobes]

Not sure if the link you had is already the one I was thinking of, but Helmut Dersch had some super support for doing fish eye processing.

https://www.ptgui.com/

Edit: is the GUI for: http://panotools.sourceforge.net/
Notably, this one: https://www.ptgui.com/man/projections.html (See Flat !)
So there is some kind of script based interface to get at this ability to do what you need.

ffmpeg can certainly do the first step too.

Also, I am not sure you need a fish eye lens to get the source images to make a 3D model. The software is known as photogrametry or structure from motion. My blog here goes through all the steps from taking a photo to 3D object. It was written a while ago and some other tools have come to light as well. Not sure which ones I mentioned but open sfm (https://github.com/mapillary/OpenSfM) is a good start.

A tricky topic for sure but if you persevere you can get some good results.

[jumpjack]

Not sure if the link you had is already the one I was thinking of, but Helmut Dersch had some super support for doing fish eye processing.

https://www.ptgui.com/

Edit: is the GUI for: http://panotools.sourceforge.net/
Notably, this one: https://www.ptgui.com/man/projections.html (See Flat !)
So there is some kind of script based interface to get at this ability to do what you need.

ffmpeg can certainly do the first step too.

Also, I am not sure you need a fish eye lens to get the source images to make a 3D model. The software is known as photogrametry or structure from motion. My blog here goes through all the steps from taking a photo to 3D object. It was written a while ago and some other tools have come to light as well. Not sure which ones I mentioned but open sfm (https://github.com/mapillary/OpenSfM) is a good start.

A tricky topic for sure but if you persevere you can get some good results.

I'll check PTGUI, but I think it is not free?
The reason for using a fisheye images is that it actually "corresponds" to taking a dozen of shots for each fisheye image, so saving much work "in the field" (but resulting in more work at home).

OpenSFM gives ugly results: in the demos I just see a bunch of points which does not even slightly resemble a 3d model. I had a quick view, I'll check deeper.