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检索条件"主题词=Reconstruction algorithm"
1029 条 记 录,以下是1021-1030 订阅
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reconstruction IN DIFFRACTION IMAGING
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IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL 1989年 第1期36卷 93-100页
作者: SOUMEKH, M CHOI, JH Department of Electrical and Computer Engineering State University of New York University at Buffalo Amherst NY USA
The problem of reconstruction in imaging systems that are modeled using the Helmholtz wave equation (diffraction imaging) is addressed. A spectral analysis of the available diffraction data is presented to help develo... 详细信息
来源: 评论
A SENSITIVITY COEFFICIENT METHOD FOR THE reconstruction OF ELECTRICAL-IMPEDANCE TOMOGRAMS
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CLINICAL PHYSICS AND PHYSIOLOGICAL MEASUREMENT 1989年 第3期10卷 275-281页
作者: KOTRE, CJ Regional Med. Phys. Dept. Newcastle Gen. Hospital UK
A number of proposed reconstruction algorithms for electrical impedance tomography have employed the concept of a sensitivity coefficient which can be used to relate the magnitude of a voltage charge measured at the s... 详细信息
来源: 评论
A COMPARATIVE-STUDY OF 3 reconstruction METHODS FOR A LIMITED-VIEW COMPUTER-TOMOGRAPHY PROBLEM
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IEEE TRANSACTIONS ON MEDICAL IMAGING 1989年 第1期8卷 43-49页
作者: OSKOUI, P STARK, H Department of Electrical Computer and Systems Engineering Rensselaer Polytechnic Institute Troy NY USA Department of Electrical and Computer Engineering Illinois Institute of Technology Chicago IL USA
Three novel methods are used to reconstruct a simulated image from a set of incomplete data spanning a 160 degrees angular range. These methods are the squashing affine transformation of J.A. Reeds and L.A. Shepp (198... 详细信息
来源: 评论
IMAGE UNDERSTANDING AND INTERPRETATION IN MICROWAVE DIVERSITY IMAGING
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IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 1989年 第8期37卷 1048-1057页
作者: LI, HJ FARHAT, NH SHEN, YS WERNER, CL UNIV PENN MOORE SCH ELECT ENGNDEPT ELECT ENGNPHILADELPHIAPA 19104 CALTECH JET PROP LABPASADENACA 91109
The authors investigate microwave imaging of metallic objects using a diversity method and interpret and predict the reconstructed image from an approach based on analysis of the scattering mechanism and a back-projec... 详细信息
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TOMOGRAPHIC RADIOPHARMACEUTICAL IMAGING
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PROCEEDINGS OF THE IEEE 1988年 第9期76卷 1079-1094页
作者: JASZCZAK, RJ Dept. of Radiol./Nucl. Med. Duke Univ. Med. Center Durham NC
Tomographic radiopharmaceutical imaging, or emission computed tomography (ECT), provides in vivo three-dimensional maps of a pharmaceutical labeled with a gamma-ray-emitting radionuclide. ECT has developed in two comp... 详细信息
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POSITRON EMISSION TOMOGRAPHIC-IMAGES AND EXPECTATION MAXIMIZATION - A VLSI ARCHITECTURE FOR MULTIPLE ITERATIONS PER SECOND
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IEEE TRANSACTIONS ON NUCLEAR SCIENCE 1988年 第1期35卷 620-624页
作者: JONES, WF BYARS, LG CASEY, ME Computer Technology and Imaging Inc. Knoxville TN USA
A digital electronic architecture for parallel processing of the expectation maximization (EM) algorithm for positron-emission-tomography (PET) image reconstruction is proposed. Rapid (0.2-s) EM iterations on high-res... 详细信息
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ISOTOPE COMPUTED-TOMOGRAPHY USING CONE-BEAM GEOMETRY - A COMPARISON OF 2 reconstruction algorithmS
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PHYSICS IN MEDICINE AND BIOLOGY 1987年 第10期32卷 1221-1235页
作者: HORSMAN, A SUTCLIFFE, J BURKINSHAW, L WILD, P SKILLING, J WEBB, S UNIV LEEDS DEPT MED PHYS LEEDS LS1 3EX W YORKSHIRE ENGLAND UNIV CAMBRIDGE DEPT APPL MATH & THEORET PHYS CAMBRIDGE CB3 9EW ENGLAND ROYAL MARSDEN HOSP JOINT DEPT PHYS SUTTON SM2 5PT SURREY ENGLAND INST CANC RES JOINT DEPT PHYS SUTTON SM2 5PT ENGLAND
A CT scanner has been constructed specifically to determine the three-dimensional distribution of bone mineral in the medullary cavities of the radius, ulna and femur. A source of x-rays (153Gd) and a multiwire propor... 详细信息
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PRELIMINARY-STUDY ON APPLICATION OF X-RAY CT SCANNER TO MEASUREMENT OF VOID FRACTIONS IN STEADY-STATE 2-PHASE FLOWS
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JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY 1983年 第1期20卷 1-12页
作者: IKEDA, T KOTANI, K MAEDA, Y KOHNO, H HITACHI LTD CENT RES LAB KOKUBUNJI TOKYO 185 JAPAN
Preliminary studies are made in order to apply an X-ray CT scanner to the measurement of cross-sectional distributions of void fractions in steady state two-phase flows. Using air-water flows in a horizontal U-shaped ... 详细信息
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algorithmS FOR 2-DIMENSIONAL reconstruction
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PHYSICS IN MEDICINE AND BIOLOGY 1977年 第5期22卷 994-997页
作者: CORMACK, AM DOYLE, BJ TUFTS UNIV DEPT PHYS MEDFORD MA 02155 USA
The 2-dimensional reconstruction problem which occurs in radiography, radioastronomy, EM and many other fields is as follows. A 2-dimensional object which can be characterized by a variable density is scanned by some ... 详细信息
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