Marching cubes: A high resolution 3D surface construction algorithm
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Form From Projected Shadow (FFPS): An algorithm for 3D shape analysis of sedimentary particles
Computers & Geosciences
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In this paper, an algorithm for the discretization of three-dimensional aggregate particles is presented. The initial description of the particle is assumed in the digital (voxel based) representation obtained (after appropriate processing) from computer tomography or magnetic resonance tomography. A smooth representation of the particle is derived from the digital description using the spherical harmonic analysis. The smooth surface of the aggregate particle is then subjected to the triangulation using the advancing front technique performed directly on the surface in the real space. This boundary mesh then serves as an input for the tetrahedrization, also based on the advancing front technique, of the particle itself and/or of the domain surrounding the particle.