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	Adaptive algebraic reconstruction technique
	Lu, WK ; Yin, FF
	2010-05-06 ; 2010-05-06
关键词	algebraic reconstruction technique radon transforms computerized tomography image reconstruction PROJECTION ACCESS SCHEMES COMPUTED-TOMOGRAPHY CT Radiology, Nuclear Medicine & Medical Imaging
中文摘要	Algebraic reconstruction techniques (ART) are iterative procedures for reconstructing objects from their projections. It is proven that ART can be computationally efficient by carefully arranging the order in which the collected data are accessed during the reconstruction procedure and adaptively adjusting the relaxation parameters. In this paper, an adaptive algebraic reconstruction technique (AART), which adopts the same projection access scheme in multilevel scheme algebraic reconstruction technique (MLS-ART), is proposed. By introducing adaptive adjustment of the relaxation parameters during the reconstruction procedure, one-iteration AART can produce reconstructions with better quality, in comparison with one-iteration MLS-ART. Furthermore, AART outperforms MLS-ART with improved computational efficiency. (C) 2004 American Association of Physicists in Medicine.
语种	英语 ; 英语
出版者	AMER ASSOC PHYSICISTS MEDICINE AMER INST PHYSICS ; MELVILLE ; STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/8982]
专题	清华大学
推荐引用方式 GB/T 7714	Lu, WK,Yin, FF. Adaptive algebraic reconstruction technique[J],2010, 2010.
APA	Lu, WK,&Yin, FF.(2010).Adaptive algebraic reconstruction technique..
MLA	Lu, WK,et al."Adaptive algebraic reconstruction technique".(2010).

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