Surfactor

Surfactor is an interactive prototypal system for the extraction of isosurfaces from regular volume datasets. Surfactor's main characteristics can be summarized as follows: [a] the use of a min-max pyramid data structure to speedup the localization of the active cells in the dataset (i.e. the cells which are crossed by the isosurface(s) at the user-selected threshold); [b] the availability of three different working modalities: Marching Cubes (high resolution of the output, high number of vertices and triangles produced), Discrete Marching Cubes (low ouput resolution, reduction factor between 40% and 85% in the number of vertices and triangles produced); Precise Discrete Marching Cubes (same reduction factor as DiscMC but high output resolution); [c] the possibility to interactively choose the desired threshold by iteratively extract, in very short times, low resolution, approximated isosurfaces; [d] the interactive visualization of up to three orthogonal slices of the volume.