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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 20 of 251 for “"image reconstruction"”.

  1. Joint CT-MRI Image Reconstruction

    Cui, XuelinVirginia Tech2018

    … medical imaging techniques. In return, medical images are required to provide more accurate and detailed information than ever. Aside from the evolution of hardware and software, multimodal imaging techniques offer a promising solution to produce higher quality images by fusing medical images …

    vt Repository record

  2. Advances in Piecewise Smooth Image Reconstruction

    Juengling, Ralf

    portland-state Repository record

  3. Image reconstruction in electrical impedance mammography

    Tang, MengxingDe Montfort University2003

    de-montfort Repository record

  4. Image reconstruction through polyfiltered variation minimization

    Hagen, Michael2013

    <p>There has been considerable interest in reconstruction of remotely sensed imagery from incomplete frequency measurements for some time now. Given the nature of the collection process, it may be that portions of the spectrum are either missing or corrupted such that one is left with an incomplete …

    emich Repository record

  5. Accurate image reconstruction in radio interferometry

    Ye, HaoyangUniversity of Cambridge2019

    … which substantially improve the accuracy of image products and the results of source extraction. These improvements in accuracy promise to assist scientific research into astronomical objects and phenomena in radio astronomy. The thesis contains six chapters, beginning with an overview of the …

    cambridge Repository record

  6. POCS Augmented CycleGAN for MR Image Reconstruction

    Yang, HanluTemple University. Libraries2020

    Traditional Magnetic Resonance Imaging (MRI) reconstruction methods, which may be highly time-consuming and sensitive to noise, heavily depend on solving nonlinear optimization problems. By contrast, deep learning (DL)-based reconstruction methods do not need any explicit analytical data model and …

    temple Repository record

  7. Hardware acceleration for sparse Fourier image reconstruction

    Dinh, Quang S.University of Illinois at Urbana-Champaign2010

    … imaging algorithm: iterative sparse Fourier image reconstruction. We transform the algorithm to exploit massive parallelism available in the FPGA fabric. Our design allows different ways of chaining custom pipelined vector engines, so that different computations can be carried out without …

    uiuc Repository record

  8. Ultrasonic reflection tomography : elliptical path image reconstruction

    Sun, Benjamin K. (Benjamin Kao=Shing)Massachusetts Institute of Technology1997

    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.

    mit Repository record

  9. Development of Spect and Ct Tomographic Image Reconstruction

    Vogelsang, Levon Orion

    … the advancement of statistically-based iterative reconstruction algorithms and protocols for both SPECT and micro CT data. Major contributions of this work to SPECT reconstruction include formulation and implementation of fully three-dimensional voxel-based system matrix in parallel-beam, …

    syracuse-diss Repository record

  10. Super-resolution image reconstruction from low-resolution images

    Nasir, Haidawati MohamadUniversity of Strathclyde2012

    … the problem of obtaining high-resolution image from a set of one or more low-resolution images. The thesis focused on three building blocks of super-resolution algorithms i.e., image registration for super-resolution, image fusion for super-resolution and super-resolution image …

    strathclyde Repository record

  11. Parallel Image Reconstruction Systems for Magnetic Induction Tomography

    Yasheng, Maimaitijiang2009

    … the resulting magnetic field perturbations. An image of conductivity distribution within the object is reconstructed by iteratively solving a non-linear inverse problem.<br/><br/>As a relatively new imaging technique, MIT encounters several challenges both in terms of the formulation of the …

    southwales Repository record

  12. Novel higher order regularisation methods for image reconstruction

    Papafitsoros, KonstantinosUniversity of Cambridge2015

    … variation-based variational methods for digital image reconstruction. These methods are formulated in the context of Tikhonov regularisation. We focus on regularisation techniques in which the regulariser incorporates second order derivatives or a sophisticated combination of first and second …

    cambridge Repository record

  13. Array-based GPR SAR simulation and image reconstruction

    Desai, Amresh SDepartment of Electrical Engineering2002

    … a number of range profiles (known as ""A Scope"" images) are assembled to form a two-dimensional data field (known as a ""B Scope"" image). These OPR systems have difficulties with high clutter level, surface reflections, limited ground penetration and the required fine resolution. The resolution …

    cape-town Repository record

  14. Three dimensional image reconstruction from Fourier magnitude measurements

    Fini, John MichaelMassachusetts Institute of Technology1997

    Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.

    mit Repository record

  15. Applications of Statistical Modeling in Iterative CT Image Reconstruction

    Perlmutter, David2015

    Traditionally, x-ray CT images are produced by an algorithm called filtered back projection, or FBP. FBP is an analytical solution to the idealized CT image reconstruction problem, the inverse problem of turning raw x-ray measurements into a full 3-dimensional (3D) image, and is derived assuming a …

    washington Repository record

  16. INVESTIGATION OF ADVANCED IMAGE RECONSTRUCTION ALGORITHMS FOR ELECTRON MICROSCOPY

    Jiang, YiCornell University2018

    … this dissertation, we investigate a variety of image reconstruction algorithms for tomography and ptychography - two fast growing areas in electron microscopy. Using experimental and simulated data, we examine the limitations of advanced reconstruction algorithms and propose new methods to …

    cornell Repository record

  17. Synthetic Holograms and Image Reconstruction From Suboptical Diffraction Patterns

    Demetrakopoulos, Themistocles H.University of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T19:07:11Z (GMT). No. of bitstreams: 1 7317524.pdf: 2494853 bytes, checksum: e386be673969e464aab02428498c39f1 (MD5) Previous issue date: 1973

    uiuc Repository record

  18. Double diffraction of quasiperiodic structures and bayesian image reconstruction

    Xu, Jian2012

    … results. The reverse problem of spectroscopy is reconstruction , that is, given an experimental image, how to reconstruct the original as faithfully as possible. We study the general image reconstruction problem under the Bayesian inference framework. We designed a modified multiplicity prior …

    uiuc Repository record

  19. Three-dimensional image reconstruction in breast ultrasound computed tomography

    Li, FuUniversity of Illinois Urbana-Champaign2025

    Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01

    uiuc Repository record

  20. COMPRESSIVE SENSING BASED IMAGE RECONSTRUCTION FOR COMPUTED TOMOGRAPHY DOSE REDUCTION

    Miao, ChuangWake Forest University2015

    … in the computed tomography (CT) field. Few-view reconstruction using iterative algorithm is an important strategy to reduce the radiation dose. In the iterative CT reconstruction, the projection / backprojection model plays an important role in the overall computational cost, image quality, and …

    wfu Repository record

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