Amplitude-modulated phase-only filtering and high-dimensional warping for registration on MRI brain images

被引：0
|
作者：
McClay, Wilbert [1 ]
Haas, Andy [2 ]
Thompson, Paul [3 ]
Toga, Arthur [3 ]
机构：
[1] Lawrence Livermore Natl Lab, Med Technol Program, L-211, Livermore, CA 94550 USA
[2] Dataura Software & Visualizat, Sierra Vista, AZ 85635 USA
[3] Univ Calif Los Angeles, Sch Med, Lab Neuro Imaging, Los Angeles, CA 90095 USA
来源：
PHOTONIC DEVICES AND ALGORITHMS FOR COMPUTING VIII | 2006年 / 6310卷
关键词：
D O I：
10.1117/12.683046
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A fully automated application was developed and used for the registration of T1-weighted magnetic resonance images (MRIs) for Alzheimer patients. Two methods for image registration were implemented and compared: affine and nonlinear registration. Nonlinear registration uses continuum-mechanics-based elastic deformation. The affine registration algorithm is linear and is generated by an amplitude-modulated phase-only filter. The nonlinear registration method uses an elastic transformation generated by Navier-Stokes continuum-mechanics models. The validation method to quantitatively compare the performance of the affine and nonlinear registration algorithms uses root-mean-square error and three-dimensional volume rendering.
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页数：14
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