Rigid Registration of Different Poses of Animated Shapes

M. Livesu and R. Scateni

University of Cagliari

[Thiery et al, 2013]

[De Aguiar et al, 2008][Sumner and Popovic, 2004]

[Marras et al, 2012]

Motivation

[Winkler et al, 2010]

Problem statement

is an isometry

Challenges

Poses do not match perfectly• Focus on rigid areas• Focus on a compact area

State of the art

PCA based algorithms

[Chaouch et al, 2008]

[Aiger et al, 2008]

ICP based algorithms

Randomized algorithms

Global!

Require a good start solution!

Global!

Requires high overlapping (> 40%)!

The algorithm

Select a Region of Interest (ROI)

Register poses by aligning ROIs

ROI detection

0

MAX• Detect seeds ( )

• Max surface

• Region growing

[Meyer et al, 2002]

Registration

[Sorkine, 2007]

Results

26,907 TOT vertices1,092 ROI vertices174ms

7,207 TOT vertices965 ROI vertices59ms

7,207 TOT vertices544 ROI vertices56ms

Multiple poses

• All vs All

• Chain

• All vs 1

Conclusions

• Based on Gaussian Curvature

• Easy to implement

• Multiple poses

https://sites.google.com/site/marcolivesu/Download the source code at:

Questions