When dealing with computer processes such as animation, physically based simulations, and geometry processing, it is imperative that the objects appear as realistic and accurate as possible. This is not necessary when dealing exclusively with the boundary descriptions of an object. Moreover, constructing a tetrahedral mesh from just the boundary description is a complex problem that involves a lot of tedious, manual work.

In this paper, the authors address the complex problem of automatically generating tetrahedral meshes from just the boundary description. They propose an automatic algorithm for handling all the inherent problems such as self-intersections, open boundaries, and so on. In the process, the authors also introduce a novel inside-outside confidence function by generalizing the winding number. The proposed technique is extensively tested and the results are presented.

The paper is very well-written and the organization makes it easy to read. This paper will certainly interest anyone involved with computer graphics and computer vision.