Surface Reconstruction from Multiple Views using Rational B-Splines and Knot Insertion
Abstract
A method for reconstruction of 3D rational B-spline surfaces from
multiple views is proposed. Given corresponding features in multiple
views, though not necessarily visible in all views, the surface is
reconstructed. First 2D B-spline patches are fitted to each view. The
3D B-spline and projection matricies can then be extracted from the 2D
B-splines using factorization methods. The surface fit is then further
refined via an iterative procedure. Finally, a hierarchal fitting
scheme is proposed to allow modeling of complex surfaces by means of
knot insertion. Experiments with real imagery demonstrate the efficacy
of the approach.