Modeling - Subdivision Techniques
Interactive Multiresolution Mesh Editing


These images show an example of an edited mesh obtained using our system: The original is on the right (courtesy Venkat Krischnamurthy). The edited version on the left illustrates large scale edits, such as the armodillo's belly, and smaller scale edits such as his double chin; all edits were performed at about 5 frames per second on an Indigo R10000 Solid Impact.

Project Overview

Building models of scanned geometry typically involves the construction of an implicit surface given some volumetric description. This is true in medial applications which often start with MRI or CT scans, as well as in reverse engineering applications in which range scanners are used for the same purpose.

Typically geometry is built from these volumetric data sources using the marching cubes algorithm or one of its variants. The resulting meshes are not satisfactory for numerical simulations or interactive manipulation because of their topological properties.

We are currently investigating the construction of mesh extraction algorithms which yield multiresolution meshes directly from volumetric data sources. These are ideally suited for multiresolution (wavelet) numerical solvers, compression, and hierarchical editing.