Multicontext fuzzy clustering for separation of brain tissues in magnetic resonance images

CASIA OpenIR > 09年以前成果

	Multicontext fuzzy clustering for separation of brain tissues in magnetic resonance images
	Zhu, CZ ; Jiang, TZ
发表期刊	NEUROIMAGE
	2003-03-01
卷号	18 期号:3 页码:685-696
文章类型	Article
摘要	A local image model is proposed to eliminate the adverse impact of both artificial and inherent intensity inhomogeneities in magnetic resonance imaging on intensity-based image segmentation methods. The estimation and correction procedures for intensity inhomogeneities are no longer indispensable because the highly convoluted spatial distribution of different tissues in the brain is taken into consideration. On the basis of the local image model, multicontext fuzzy clustering (MCFC) is proposed for classifying 2D and 3D MR data into tissues of white matter, gray matter, and cerebral spinal fluid automatically. In MCFC, multiple clustering contexts are generated for each pixel, and fuzzy clustering is independently performed in each context to calculate the degree of membership of a pixel to each tissue class. To maintain the statistical reliability and spatial continuity of membership distributions, a fusion strategy is adopted to integrate the clustering outcomes from different contexts. The fusion result is taken as the final membership value of the pixel. Experimental results on both real MR images and simulated volumetric MR data show that MCFC outperforms the classic fuzzy c-means (FCM) as well as other segmentation methods that deal with intensity inhomogeneities. (C) 2003 Elsevier Science (USA). All rights reserved.
关键词	Fuzzy Clustering Cluster Analysis Information Fusion Image Segmentation Magnetic Resonance Imaging Intensity Inhomogeneities
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	INTENSITY NONUNIFORMITY ; MR-IMAGES ; BIAS FIELD ; SEGMENTATION ; CLASSIFICATION ; INHOMOGENEITIES ; ALGORITHM
收录类别	SCI
语种	英语
WOS研究方向	Neurosciences & Neurology ; Radiology, Nuclear Medicine & Medical Imaging
WOS类目	Neurosciences ; Neuroimaging ; Radiology, Nuclear Medicine & Medical Imaging
WOS记录号	WOS:000182056700013
引用统计	被引频次：69[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/173211/9931
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.Univ Houston, Dept Comp Sci, Houston, TX 77204 USA
推荐引用方式 GB/T 7714	Zhu, CZ,Jiang, TZ. Multicontext fuzzy clustering for separation of brain tissues in magnetic resonance images[J]. NEUROIMAGE,2003,18(3):685-696.
APA	Zhu, CZ,&Jiang, TZ.(2003).Multicontext fuzzy clustering for separation of brain tissues in magnetic resonance images.NEUROIMAGE,18(3),685-696.
MLA	Zhu, CZ,et al."Multicontext fuzzy clustering for separation of brain tissues in magnetic resonance images".NEUROIMAGE 18.3(2003):685-696.