Multiresolution Signal Processing for Meshes

We generalize basic signal processing tools such as downsampling, upsampling, and filters to irregular connectivity triangle meshes. This is accomplished through the design of a non-uniform relaxation procedure whose weights depend on the geometry and we show its superiority over existing schemes whose weights depend only on connectivity. This is combined with known mesh simplification methods to build subdivision and pyramid algorithms. We demonstrate the power of these algorithms through a number of application examples including smoothing, enhancement, editing, and texture mapping. CR Categories and Subject Descriptors: I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling - hierarchy and geometric transformations, object hierarchies; I.4.3 [Image Processing and Computer Vision]: Enhancement

• Type: Conference
• Year: 1999
• Where: SIGGRAPH
• Authors: Igor Guskov, Wim Sweldens, Peter Schröder
• Keywords: Basic Signal Processing, Computer Graphics, Irregular Connectivity Triangle, Non-uniform Relaxation Procedure, SIGGRAPH 1999