Fronto-parallel building facades stitching

Parallax handling is a challenging task for image stitching. Existing image stitching methods are quite sensitive to large parallax. One common phenomenon, e.g. is the ghosting. In this Letter, a flexible building facade stitching method that allows large parallax is proposed. Using the rigidity constraints of the man-made environment, each view can be aligned to a reference view. Excellent stitching performance demonstrates that the proposed method is superior to the state-of-the-art ones.