Landmark matching on brain surfaces via large deformation diffeomorphisms on the sphere

被引：24

作者：

Bakircioglu, MM ^{[1
]}

Joshi, S ^{[1
]}

Miller, MI ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Elect & Comp Engn, Baltimore, MD 21218 USA

来源：

MEDICAL IMAGING 1999: IMAGE PROCESSING, PTS 1 AND 2 | 1999年 / 3661卷

关键词：

landmark matching; brain mapping; deformable templates;

D O I：

10.1117/12.348628

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper extends the diffeomorphic landmark matching as described by Joshi(1) in R-2 and R-3 to spherical geometries. Spherical maps, which are in one-to-one correspondence with a cortical surface, are useful in visualization since they bring the buried cortex into full view and preserve topology. Diffeomophisms are generated as solutions to the transport equation as given below, and landmark matching is constructed to minimize a running smoothness energy on the velocity field as well the end point distance between the template and target landmarks which characterize the sphere S-2: d phi(x, t)/dt = upsilon(phi(x, t), t), phi(x, 0) = x is an element of S-2, t is an element of [0, 1]. (1).

引用

页码：710 / 715

页数：6