Spatial registration and normalization of images
Spatial registration and normalization of images
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DOI：
10.1002/hbm.460030303
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发表时间：
1995-01-01
影响因子：
4.8
通讯作者：
Frackowiak, RSJ
中科院分区：
文献类型：
--
作者：
Friston, KJ;Ashburner, J;Frackowiak, RSJ
本文涉及可能将一个图像放到另一个图像的空间和强度变换。我们提出了一种促进非线性空间（立体定向）归一化和图像重新调整的通用技术。该技术最小化了在非线性空间变形和体素（强度）值的转换之后两个图像之间的平方之和。使用最小二乘解和一系列线性化设备同时并明确地获得空间和强度转换。该方法是完全非相互作用的（自动），非线性和非访问性的。它可以在任何数量的维度中应用。都考虑了各种应用，包括功能磁共振成像（MRI）时间序列的重组，线性（仿射）和正电子发射断层扫描（PET）的非线性空间正常化和结构MRI图像，PET对结构MRI的核心分配，以及隐含的PET和MRI结合以获得高分辨率的功能图像。 （c）1996 Wiley Liss，Inc。
This paper concerns the spatial and intensity transformations that may 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 PET to structural MRI, and, implicitly, the conjoining of PET and MRI to obtain high resolution functional images. (C) 1996 Wiley Liss, Inc.