作者
Karl J Friston, John Ashburner, Christopher D Frith, J‐B Poline, John D Heather, Richard SJ Frackowiak
发表日期
1995
期刊
Human brain mapping
卷号
3
期号
3
页码范围
165-189
出版商
Wiley Subscription Services, Inc., A Wiley Company
简介
This paper concerns the spatial and intensity transformations that map one image onto another. We present a general technique that facilitates nonlinear spatial (stereotactic) normalization and image realignment. This technique minimizes the sum of squares between two images following nonlinear spatial deformations and transformations of the voxel (intensity) values. The spatial and intensity transformations are obtained simultaneously, and explicitly, using a least squares solution and a series of linearising devices. The approach is completely noninteractive (automatic), nonlinear, and noniterative. It can be applied in any number of dimensions.
Various applications are considered, including the realignment of functional magnetic resonance imaging (MRI) time‐series, the linear (affine) and nonlinear spatial normalization of positron emission tomography (PET) and structural MRI images, the coregistration of …
引用总数
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