This paper describes a system which automatically derives 3D models of architectural scenes from multiple images. This system differs from previous structure from motion algorithms in that it explicitly makes use of strong geometric constraints such as perpendicularity and verticality which are likely to be found in architecture. Structure is compactly represented as a piecewise planar model which is initialised automatically by segmenting a featurebased reconstruction. An efficient technique for evaluation of model likelihood is also presented, which allows a rapid search through a large number of 3D models.
Anthony R. Dick, Philip H. S. Torr, Roberto Cipoll