carrier image

Atomic Images - A Method For Meshing Digital Images

Hale, Dave

Proceedings, 10th International Meshing Roundtable, Sandia National Laboratories, pp.185-196, October 7-10 2001


10th International Meshing Roundtable
Newport Beach, California, U.S.A.
October 7-10, 2001

Landmark Graphics, Englewood, CO, USA

By combining a digital image with a lattice of points called atoms, in which atom coordinates are computed to minimize a potential energy function of the combination, we obtain a mesh suitable for further computations, such as flow simulation.

Each atom in the lattice contributes a potential function to an atomic potential field. The image represents another potential field. Total potential energy of the lattice is a weighted sum of the atomic and image potential fields, evaluated at atom coordinates. We exploit the uniform sampling of images to obtain a simple and efficient algorithm for computing the total potential energy.

Beginning with a pseudo-regular lattice, a generic optimization algorithm moves atoms to minimize this total poten- tial energy. After lattice optimization (not before), we connect the atoms to form a mesh that tends to be aligned with image features.

Download Full Paper (Postscript Format)

Contact author(s) or publisher for availability and copyright information on above referenced article