... About lab . ... The shape of the object is called "generalized box" and describes objects with hexahedron shape, which edges are polylines or curves and faces are curved surfaces. ... In modeling step user should outline at least three edges of the generalized box on at least two images. ... First step of reconstruction is building a curved 3D edge, corresponding to input 2D edges. ... Yakubenko A, Konushin A, Vezhnevets V. Image-based 3D Reconstruction of Generalized Box with User Sketches . ...