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34篇 您的检索式:作者名="EMIL Y"
    题名 作者 年代 出处 被引量
1Image reconstruction in circular cone-beam computed tomography by constrained, total-variation minimization显示文摘Emil Y Sidky Xiaochuan Pan 2008Physics in Medicine and Biology2008,,17:2
2Accurate image reconstruction from few views and limited angle data in divergent beam CTc显示文摘Emil Y S Kao C Pan X 2006Jr*urna! o/X- Ray Seiezzce and Teehnology2006,14,2:1
3Comparative study ofbackground subtraction algorithm显示文摘Benzeth Y Jodoin P M Emile B 2010Journal Electronic Imaging2010,19,3:1
4Consistency Conditions for Cone-Beam CT Data Acquired with a Straight-Line Source Trajectory显示文摘A consistency condition is developed for computed tomography(CT) projection data acquired from a straight-line X-ray source trajectory.The condition states that integrals of normalized projection data along detector lines parallel to the X-ray path must be equal.The projection data is required to be untruncated only along the detector lines parallel to the X-ray path,a less restrictive requirement compared to Fourier conditions that necessitate completely untruncated data.The condition is implemented numerically on simple image functions,a discretization error bound is estimated,and detection of motion inconsistencies is demonstrated.The results show that the consistency condition may be used to quantitatively compare the quality of projection data sets obtained from different scans of the same image object.LEVINE Margo S SIDKY Emil Y 2010Tsinghua Science and Technology2010,15,1:1
5Region of Interest Imaging for a General Trajectory with the Rebinned BPF Algorithm显示文摘The back-projection-filtration(BPF) algorithm has been applied to image reconstruction for cone-beam configurations with general source trajectories.The BPF algorithm can reconstruct 3-D region-of-interest(ROI) images from data containing truncations.However,like many other existing algorithms for cone-beam configurations,the BPF algorithm involves a back-projection with a spatially varying weighting factor,which can result in the non-uniform noise levels in reconstructed images and increased computation time.In this work,we propose a BPF algorithm to eliminate the spatially varying weighting factor by using a rebinned geometry for a general scanning trajectory.This proposed BPF algorithm has an improved noise property,while retaining the advantages of the original BPF algorithm such as minimum data requirement.SIDKY Emil Y 2010Tsinghua Science and Technology2010,15,1:1
6Comparative study of background subtraction algorithms显示文摘Benezeth Y Jodoin P M Emile B 2010Journal of Electronic Imaging2010,19,3:1
7Dual-Energy Technique at Low Tube Voltages for Small Animal Imaging显示文摘We investigate the feasibility of dual-energy method for image contrast enhancement in small animal studies using a low kV X-ray radiographic system.A robust method for X-ray spectrum estimation from transmission measurements,based on expectation-maximization(EM) method,is applied to an X-ray specimen radiographic system for dual energy imaging of a mouse.From transmission measurements of two known attenuators at two different X-ray tube voltages,the X-ray energy spectra are reconstructed using the EM-based method.From the spectra information thus obtained,the transmission data for bone and soft tissue in terms of various thicknesses are generated.Two polynomial functions of transmission data are then sought for to fit the inverted thicknesses of bone and soft-tissue.Scatters in cone-beam projection data acquired at two X-ray energies were corrected.From the scatter-corrected data,a bone thickness map is separated from a soft-tissue thickness map by use of the polynomial functions.CHO Seungryong SIDKY Emil Y 2010Tsinghua Science and Technology2010,15,1:1
8A Novel co3 Fatty Acid Desaturase Invoved in the Biosynthesis of Eicosapen- taenoic Acid显示文摘Suzette L P Huang Y S Emil G B 2004Biochemical Journal2004,378,2:1
9Inhibition of Wnt/13-catenin/ CREB binding protein (CBP) signaling reverses pulmonary fibro- sis显示文摘JR WH EMIL Y YE X 2010Proc Natl Acad Sci USA2010,107,14:1
10Comparative study of background subtraction algorithms显示文摘Benezeth Y Jodoin P M Emile B 2010Journal of Electronic Imaging2010,19,3:1
11Genetic variation in the feeding efficiency of maize genotypes evaluated from experiments with dairy cows显示文摘Barriere Y Emile J C Traineau R 1995Plant Breed1995,114,:1
12A novel method for determining source spectrum/detector spectral response in X-ray imaging显示文摘Yu Li-feng Sidky Emil Y Pan Xiao-chuan 2004Proceedings of IEEE2004,9,:1
13Annular pancreas in children:a recent decade,s experience显示文摘Jimenez J Emil S Podnos Y 2004J Pediatr Smg2004,39,11:1
14The empty delta sign显示文摘Emil J Lee Y 2002Radiology2002,224,3:1
15Annular pancreas in children:a recent decade's experience显示文摘Jimenez JC Emil S Podnos Y 2004J Pediatr Surg2004,39,:1
16Annular pancreas in children: a recent decade's experience显示文摘Jimenez JC Emil S Podnos Y 2004Pediatr Surg2004,39,11:1
17Genetic variation in the feeding efficiency of maize genotypes evaluated from experiments with dairy cows显示文摘Barriere Y Emile J C Traineau R 1995Plant Breed1995,114,:1
18Comparative study of background subtraction algorithms显示文摘Benezeth Y Jodoin P M Emile B 2010Journal of Electronic Imaging2010,19,3:1
19Image reconstruction in regions-of-interest from truncated projections in a reduced fan-beam scan显示文摘Zou Y Pan X Sidky Emil 2005Phys Med Biol2005,50,:1
20Comparativestudy of background subtraction algorithms显示文摘Benezeth Y Jodoin P M Emile B 2010Journal ofElectronic Imaging2010,19,03:1
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