Shape Comparison Using Perturbing Shape Registration.
Shape registration is often involved in computing statistical differences between groups of shapes, which is a key aspect of morphometric study. The results of shape difference are found to be sensitive to registration, i.e., different registration methods lead to varied results. This raises the question of how to improve the reliability of registration procedures. This paper proposes a perturbation scheme, which perturbs registrations by feeding them with different resampled shape groups, and then aggregates the resulting shape differences. Experiments are conducted using three typical registration algorithms on both synthetic and biomedical shapes, where more reliable inter-group shape differences are found under the proposed scheme.
Jiang
Yifeng
Y
Department of Diagnostic Radiology, Yale University, New Haven, CT, USA.
Edmiston
Erin
E
Wang
Fei
F
Blumberg
Hilary P
HP
Staib
Lawrence H
LH
Papademetris
Xenophon
X
IEEE Trans Med Imaging. 2003 Sep;22(9):1120-30
12956267
Neuroimage. 2000 Jun;11(6 Pt 1):805-21
10860804
IEEE Trans Pattern Anal Mach Intell. 2006 Aug;28(8):1303-18
16886865
Insight J. 2006;(1071):242-250
21941375
Med Image Comput Comput Assist Interv. 2007;10(Pt 1):375-83
18051081
IEEE Trans Med Imaging. 2007 Apr;26(4):566-81
17427743
Inf Process Med Imaging. 2003 Jul;18:330-41
15344469
Med Image Anal. 2005 Feb;9(1):69-86
15581813
IEEE Trans Med Imaging. 2007 Apr;26(4):582-97
17427744
IEEE Trans Pattern Anal Mach Intell. 2004 Feb;26(2):160-72
15376892
Inf Process Med Imaging. 2003 Jul;18:51-62
15344446