Fourier Shape Analysis Of Anatomic Structures
Fourier Shape Analysis Of Anatomic Structures
复制标题
解剖结构的傅立叶形状分析
DOI：
10.1007/978-94-009-0665-5_2
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发表时间：
1990
影响因子：
7.3
通讯作者：
V. Caviness
中科院分区：
文献类型：
--
作者：
D. Kennedy;P. Filipek;V. Caviness
在本文中，我们探索傅立叶方法的定量形状分析。所讨论的技术的应用和示例通过三维核磁共振 (NMR) 成像中呈现的解剖数据进行了演示。有多种常见问题可以从形状分析的定量方法中受益。事实上，形状是结构形态测定的四个主要独立参数（体积、形状、几何定位和组成）之一，每个参数都需要定量测量才能提供灵敏的分析手段。形状分析的傅里叶方法可以应用于二维结构表面。简而言之，该方法涉及以极坐标和傅里叶变换表示表面，以获得构成该结构的空间频率成分的测量。讨论了该方法和原始数据本身所带来的限制和技术考虑。最后，介绍了该方法的二维应用，例如在正常成人大脑不对称性的评估中。
In this paper we explore quantitative shape analysis by Fourier methods. Applications and examples of the techniques discussed are demontrated on anatomic data as presented in three-dimensional Nuclear Magnetic Resonance (NMR) imaging. There is a wide variety of common problems that can benefit from a quantitative method of shape analysis. Indeed, shape constitutes one of four major independent parameters of structural morphometry (volume, shape, geometric localization and composition), each of which require quantitative measures in order to provide a sensitive means of analysis. The Fourier method of shape analysis can be applied to two-dimensional structural surfaces. In short, the method involves representation of the surface in polar coordinates and Fourier transformation to obtain a measure of the spatial frequency constituents that comprise the structure. The limitations and technical considerations imposed both by the method and the primary data itself are discussed. Finally, two-dimensional applications of the method are presented, for example, in the evaluation of cerebral asymmetry of normal adults.