Regard3D - Regard3D is a free, multiplatform, open-source structure-from-motion application.
SCARM - Simple Computer Aided Railway Modeller
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
TrainCad - Freeware Microsoft Windows program for designing model railroad layouts using standard tracks.
RealityCapture - RealityCapture is a software solution which automatically produces high resolution 3D models from photographs or laser-scans.
WinTrack - Track planing software