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A robust and accurate algorithm for estimating the complexity of the cortical surface
Jiang, Jiefeng1; Zhu, Wanlin2; Shi, Feng1; Zhang, Yuanchao2; Lin, Lei2; Jiang, Tianzi1
2008-07-15
发表期刊JOURNAL OF NEUROSCIENCE METHODS
卷号172期号:1页码:122-130
文章类型Article
摘要A fractal dimension (FD) gives a highly compact description of the shape characteristics of the human brain and has been employed in many studies on brain morphology. The accuracy of FD estimation depends on the precision of the input shape description. Facilitated by automatic cerebral cortical surface reconstruction algorithms, the shape of the cerebral cortex can be more precisely modeled using Magnetic Resonance (MR) imaging. Since the reconstructed cortical surface is represented by triangles, rather than by points, as is typical of models that use voxels, the voxel-based FD estimation algorithms that have been used in previous studies do not work when using the cortical surface as the input. Thus, designing a new algorithm that is able to estimate the FD from a surface representation becomes of particular interest. In this paper, a robust and accurate FD estimation algorithm is proposed. The algorithm is based on a box-triangle intersection checking strategy, which is used for the first time in brain analyses, and a box-counting method, which has been widely used in FD computations of the human brain and other natural objects. These two features endowed the algorithm with robustness. The accuracy of the algorithm was validated via several experiments using both manually generated datasets and real MR images. As a result of these features, the algorithm is also suitable for estimating the FD of fractals in addition to that of the cerebral cortex. (C) 2008 Elsevier B.V. All rights reserved.
关键词Anatomic Mri Box-counting Cortical Complexity Fractal Dimension Reconstructed Cortical Surface
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]MAGNETIC-RESONANCE IMAGES ; AUTOMATED 3-D EXTRACTION ; FRACTAL DIMENSION ; WHITE-MATTER ; CEREBRAL-CORTEX ; HUMAN BRAIN ; SCHIZOPHRENIA ; RECONSTRUCTION ; GYRIFICATION ; ASYMMETRY
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Neurosciences & Neurology
WOS类目Biochemical Research Methods ; Neurosciences
WOS记录号WOS:000257485800018
引用统计
被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9520
专题09年以前成果
作者单位1.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
2.Zhejiang Univ, Dept Math, Hangzhou 310027, Peoples R China
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Jiang, Jiefeng,Zhu, Wanlin,Shi, Feng,et al. A robust and accurate algorithm for estimating the complexity of the cortical surface[J]. JOURNAL OF NEUROSCIENCE METHODS,2008,172(1):122-130.
APA Jiang, Jiefeng,Zhu, Wanlin,Shi, Feng,Zhang, Yuanchao,Lin, Lei,&Jiang, Tianzi.(2008).A robust and accurate algorithm for estimating the complexity of the cortical surface.JOURNAL OF NEUROSCIENCE METHODS,172(1),122-130.
MLA Jiang, Jiefeng,et al."A robust and accurate algorithm for estimating the complexity of the cortical surface".JOURNAL OF NEUROSCIENCE METHODS 172.1(2008):122-130.
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