Spatiotemporal atlas parameterization for evolving meshes
ACM Trans. Graphics (SIGGRAPH) 36(4), 2017.
Tracked mesh with sparse incremental changes in connectivity and texture map.
We convert a sequence of unstructured textured meshes into a mesh with incrementally changing
connectivity and atlas parameterization.
Like prior work on surface tracking, we seek temporally coherent mesh connectivity to enable efficient
representation of surface geometry and texture.
Like recent work on evolving meshes,
we pursue local remeshing to permit tracking over long
sequences containing significant deformations or topological changes.
Our main contribution is to show that both goals are realizable within a common framework
that simultaneously evolves both the set of mesh triangles and the parametric map.
Sparsifying the remeshing operations allows the formation of large spatiotemporal texture charts.
These charts are packed as prisms into a 3D atlas for a texture video.
Reducing tracking drift using mesh-based optical flow helps improve compression of the resulting video stream.
No hindsights yet.