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	Hardware Implementation on the Weight Calculation of Iterative Algorithm for CT Image Reconstruction
	Cao, Xixin ; Ma, Kaisheng ; Lian, Renchun ; Zhang, Qihui
刊名	etri journal
	2013
关键词	Weight calculation circular pixel model segmentation method simulation FPGA
DOI	10.4218/etrij.13.0212.0569
英文摘要	The weight calculation in an iterative algorithm is the most computationally costly task in computed tomography image reconstruction. In this letter, a fast algorithm to speed up the weight calculation is proposed The classic square pixel rotation approximate calculation method for computing the weights in the iterative algorithm is first analyzed and then improved by replacing the square pixel model with a circular pixel model and the square rotation approximation with a segmentation method of a circular area. Software simulation and hardware implementation results' show that our proposed scheme can not only improve the definition of the reconstructed image but also accelerate the reconstruction.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000325599500023&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; Telecommunications; SCI(E); EI; 1; ARTICLE; 5; 931-934; 35
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/325708]
专题	软件与微电子学院
推荐引用方式 GB/T 7714	Cao, Xixin,Ma, Kaisheng,Lian, Renchun,et al. Hardware Implementation on the Weight Calculation of Iterative Algorithm for CT Image Reconstruction[J]. etri journal,2013.
APA	Cao, Xixin,Ma, Kaisheng,Lian, Renchun,&Zhang, Qihui.(2013).Hardware Implementation on the Weight Calculation of Iterative Algorithm for CT Image Reconstruction.etri journal.
MLA	Cao, Xixin,et al."Hardware Implementation on the Weight Calculation of Iterative Algorithm for CT Image Reconstruction".etri journal (2013).

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