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Rigid Registration of Different Poses of Animated Shapes

Rigid Registration of Different Poses of Animated Shapes. M. Livesu and R . Scateni. University of Cagliari. Motivation. [ Thiery et al, 2013]. [ Sumner and Popovic , 2004]. [ Winkler et al, 2010]. [De Aguiar et al, 2008]. [Marras et al, 2012]. Problem statement.

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Rigid Registration of Different Poses of Animated Shapes

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  1. RigidRegistration of DifferentPoses of AnimatedShapes M. Livesu and R. Scateni University of Cagliari

  2. Motivation [Thiery et al, 2013] [Sumner and Popovic, 2004] [Winkler et al, 2010] [De Aguiar et al, 2008] [Marras et al, 2012]

  3. Problem statement is an isometry

  4. Challenges • Poses do not match perfectly • Focus on rigidareas • Focus on a compact area

  5. State of the art ICP basedalgorithms Global! Require a good start solution! PCAbasedalgorithms [Chaouch et al, 2008] Global! [Aiger et al, 2008] Randomizedalgorithms Requires high overlapping (> 40%)!

  6. The algorithm Select a Region of Interest (ROI) Registerposes by aligningROIs

  7. ROI detection • Detectseeds ( ) MAX • Regiongrowing • Maxsurface 0 [Meyer et al, 2002]

  8. Registration [Sorkine, 2007]

  9. Results 7,207 TOT vertices 965 ROI vertices 59ms 26,907 TOT vertices 1,092 ROI vertices 174ms 7,207 TOT vertices 544 ROI vertices 56ms

  10. Multiple poses • All vs All • Chain • All vs 1

  11. Conclusions • Based on Gaussian Curvature • Easy to implement • Multiple poses Download the source code at: https://sites.google.com/site/marcolivesu/

  12. Questions

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