PHASE CORRECTION AND BAND-PASS FILTERS IN CT IMAGING

PHASE CORRECTION AND BAND-PASS FILTERS IN CT IMAGING

下载PDF

导出

摘要 This paper reports the use of the fast Fourier transform (FFT) in the direct Fourier transform method (DFM) in Computerized Tomography (CT) reconstruction. Phase corrections are needed in the CT reconstruction. In order to eliminate the image distortion from the basic DFM, Padding and band-pass filters are used in the improved DFM. Finally, some reconstructions from simulated projections and several experimental results are given. This paper reports the use of the fast Fourier transform (FFT) in the direct Fourier transform method (DFM) in Computerized Tomography (CT) reconstruction. Phase corrections are needed in the CT reconstruction. In order to eliminate the image distortion from the basic DFM, Padding and band-pass filters are used in the improved DFM. Finally, some reconstructions from simulated projections and several experimental results are given.

作者赵生妹蒋大真

机构地区 Shanghai Institute of Nuclear Research

出处《Nuclear Science and Techniques》 SCIE CAS CSCD 1993年第2期101-107,共7页 核技术（英文）

关键词 CT imaging Phase CORRECTION BAND-PASS FILTERS FOURIER TRANSFORMATION PADDING CT imaging Phase correction Band-pass filters Fourier transformation Padding

分类号 TL [核科学技术]

引文网络
相关文献

1List of Reports in International Meetings in 2000[J].Annual Report of China Institute of Atomic Energy,2000(0):103-104.
2List of Reports in International Meetings in 2001[J].Annual Report of China Institute of Atomic Energy,2001(0):147-150.
3CHANG Shang-wen,CHEN Zhi-xu,LI Gao-liang,CHANG Li,LI Rui-xue,WANG Chang-shui,HE Hui.Study on the Decomposing Reductant of the Simulant 1BP Fluid With N2O4 in the Padding Column[J].Annual Report of China Institute of Atomic Energy,2012(1):145-145.
4布景亮,刘永,张新军,提昂,张寿彪,张涛,韩翔,王嵎民,凌必利,高翔.Experimental Determination of the ICRF Power Depositing on the Electrons in HT-7[J].Plasma Science and Technology,2013,15(11):1100-1102.
5Reconstruction of Lacal meutrom Flux Distribution Within Node[J].Annual Report of China Institute of Atomic Energy,1994(0):106-107.
6王福亮,左博.Detection of surface cutting defect on magnet using Fourier image reconstruction[J].Journal of Central South University,2016,23(5):1123-1131. 被引量：3
7ZHENG Wei-ming, SONG You, LIU Gui-jiao, WU Ji-zong.Correction Method of Deviation in EDXRF[J].Annual Report of China Institute of Atomic Energy,2007(1):196-197.
8M.MATSUKAWA,K.SHIMADA,K.YAMAUCHI,E.GAIO,A.FERRO,L.NOVELLO.A Conceptual Design Study for the Error Field Correction Coil Power Supply in JT-60SA[J].Plasma Science and Technology,2013,15(3):257-260.
9何志雄,董家齐,何宏达,蒋海滨,高喆,张锦华.MHD Equilibrium Configuration Reconstructions for HL-2A Tokamak[J].Plasma Science and Technology,2011,13(4):424-430.
10LIU Huan-liang, ZHANG Li-hua, FU Jian-li, SU Yu-lan, YANG En-bo.Determination of D_2O Concentration by Fourier Infra-Red Spectrophotometry[J].Annual Report of China Institute of Atomic Energy,2008(1):227-227.

Nuclear Science and Techniques

1993年第2期

浏览历史

内容加载中请稍等...

PHASE CORRECTION AND BAND-PASS FILTERS IN CT IMAGING

相关作者

相关机构

相关主题

浏览历史