Combined compression and simplification of dynamic 3D meshes

Combined compression and simplification of dynamic 3D meshes

We present a new approach to dynamic mesh compression, which combines compression with simplification to achieve improved compression results, a natural support for incremental transmission and level of detail. The algorithm allows fast progressive transmission of dynamic 3D content. Our scheme exploits both temporal and spatial coherency of the input data, and is especially efficient for the c...

Simplification and Compression of 3D Meshes

Temporal DCT-Based Compression of 3D Dynamic Meshes

This paper introduces a new compression scheme for 3D dynamic meshes with constant connectivity and time-varying geometry. The proposed approach, referred to as Temporal-DCT encoder (TDCT), combines a piecewise affine prediction scheme with a temporal DCT-based compression of the prediction errors. Experiments show that TDCT achieves up to 70% and 54% lower compression distortions than the GV a...

Simplification of Articulated Meshes

We present a method for simplifying a polygonal character with an associated skeletal deformation such that the simplified character approximates the original shape well when deformed. As input, we require a set of example poses that are representative of the types of deformations the character undergoes and we produce a multiresolution hierarchy for the simplified character where all simplifie...

Simplification of Nonconvex Tetrahedral Meshes

We present a new solution to the well-known problems of edge collapses in nonconvex tetrahedral meshes. Additionally, our method is able to handle meshes with topologically non-trivial boundaries and to control the modification of the topology of the mesh’s boundary.