Deformable registration using patch-wise shape matching

被引:16
作者
Bonarrigo, Francesco [1 ]
Signoroni, Alberto [1 ]
Botsch, Mario [2 ]
机构
[1] Univ Brescia, Dept Informat Engn, I-25121 Brescia, Italy
[2] Univ Bielefeld, Comp Graph & Geometry Proc Grp, Bielefeld, Germany
关键词
Non-rigid registration; Nonlinear shape deformation; NONRIGID REGISTRATION; SPACE;
D O I
10.1016/j.gmod.2014.04.004
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
We present a novel approach for non-rigid registration of partially overlapping surfaces acquired from a deforming object. To allow for large and general deformations our method employs a nonlinear physics-inspired deformation model, which has been designed with a particular focus on robustness and performance. We discretize the surface into a set of overlapping patches, for each of which an optimal rigid motion is found and interpolated faithfully using dual quaternion blending. Using this discretization we can formulate the two components of our objective function-a fitting and a regularization term as a combined global shape matching problem, which can be solved through a very robust numerical approach. Interleaving the optimization with successive patch refinement results in an efficient hierarchical coarse-to-fine optimization. Compared to other approaches our as-rigid-as-possible deformation model is faster, causes less distortion, and gives more accurate fitting results. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码:554 / 565
页数:12
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