I'll throw https://github.com/AIBluefisher/EGSfM https://github.com/AIBluefisher/EGSfM into the discussion as an example for an AFAIK state-of-the-art structure

I'll throw https://github.com/AIBluefisher/EGSfM https://github.com/AIBluefisher/EGSfM into the discussion as an example for an AFAIK state-of-the-art structure from motion tool. It takes images/video, and reconstructs the relative positioning of the individual images/frames to each other, as well as the camera parameters required for multi-view stereo techniques like https://arxiv.org/abs/1903.10929 https://arxiv.org/abs/1903.10929 to generate meshes.