Arithmetic coding for data compression
Communications of the ACM
Compression of time-dependent geometry
I3D '99 Proceedings of the 1999 symposium on Interactive 3D graphics
Vertex Data Compression for Triangular Meshes
PG '00 Proceedings of the 8th Pacific Conference on Computer Graphics and Applications
Higher Order Prediction for Geometry Compression
SMI '03 Proceedings of the Shape Modeling International 2003
Dynapack: space-time compression of the 3D animations of triangle meshes with fixed connectivity
Proceedings of the 2003 ACM SIGGRAPH/Eurographics symposium on Computer animation
3D Compression Made Simple: Edgebreaker with Zip&Wrap on a Corner-Table
SMI '01 Proceedings of the International Conference on Shape Modeling & Applications
Octree-based Animated Geometry Compression
DCC '04 Proceedings of the Conference on Data Compression
Wavelet compression of parametrically coherent mesh sequences
SCA '04 Proceedings of the 2004 ACM SIGGRAPH/Eurographics symposium on Computer animation
Simple and efficient compression of animation sequences
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
A skinning approach for dynamic 3D mesh compression: Research Articles
Computer Animation and Virtual Worlds - CASA 2006
Compression of complex animated meshes
CGI'06 Proceedings of the 24th international conference on Advances in Computer Graphics
Compression of 3-D triangle mesh sequences based on vertex-wise motion vector prediction
IEEE Transactions on Circuits and Systems for Video Technology
Improved prediction methods for scalable predictive animated mesh compression
Journal of Visual Communication and Image Representation
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Representing mesh geometry in local rather than the world coordinate systems is very useful in many 3D animation processing applications. One can investigate the representation of vertex locations relative to a local coordinate frame (LCF) in the compression of dynamic 3D meshes. Unlike the world coordinates, which scatter in a wide range and show non-linear behavior of the vertices, the local coordinates exhibit a large clustering behavior of the vertex over time. This property is very useful for exploiting a large coherence over the vertex trajectory and between neighboring vertices. In this paper, we discuss the use of the LCF in static and animated mesh encoding and we introduce a new connectivity-guided predictive scheme for single-rate compression for animated meshes. The proposed geometry encoding strategy is based on a region growing encoding order, and only the differences between original and predicted locations are encoded in a local coordinate system, which splits into two tangential and one normal components. The approach is simple, efficient, and well-suited for real time applications.