Tracking surfaces with evolving topology Journal Article


Author(s): Bojsen-Hansen, Morten; Li, Hao; Wojtan, Chris
Article Title: Tracking surfaces with evolving topology
Title Series: SIGGRAPH
Affiliation IST Austria
Abstract: We present a method for recovering a temporally coherent, deforming triangle mesh with arbitrarily changing topology from an incoherent sequence of static closed surfaces. We solve this problem using the surface geometry alone, without any prior information like surface templates or velocity fields. Our system combines a proven strategy for triangle mesh improvement, a robust multi-resolution non-rigid registration routine, and a reliable technique for changing surface mesh topology. We also introduce a novel topological constraint enforcement algorithm to ensure that the output and input always have similar topology. We apply our technique to a series of diverse input data from video reconstructions, physics simulations, and artistic morphs. The structured output of our algorithm allows us to efficiently track information like colors and displacement maps, recover velocity information, and solve PDEs on the mesh as a post process.
Keywords: fluid simulation; implicit surfaces; mesh deformation; non-rigid tracking
Journal Title: ACM Transactions on Graphics
Volume: 31
Issue 4
ISSN: 1557-7368
Publisher: ACM  
Date Published: 2012-07-01
Start Page: 53:1
End Page: 53:10
Sponsor: This work is supported by the SNF fellowship PBEZP2-134464.
URL:
DOI: 10.1145/2185520.2185549
Notes: We would like to thank Xiaochen Hu for implementing mesh con- version tools, Duygu Ceylan for helping with the rendering, and Art Tevs for the human performance data comparison. We also thank Nils Thuerey and Christopher Batty for helpful discussions.
Open access: yes (repository)
IST Austria Authors
  1. Chris Wojtan
    34 Wojtan
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