Results 281 to 290 of about 1,053,214 (335)

Accurate image reconstruction within and beyond the field-of-view of CT system from data with truncation. [PDF]

Phys Med Biol
Zhang Z, Chen B, Xia D, Sidky EY, Pan X.
europepmc   +1 more source

Robotic-assisted laparoscopic transposition of the left renal vein with three-dimensional image reconstruction for treatment of pediatric nutcracker syndrome: a case description and literature analysis. [PDF]

Quant Imaging Med Surg
Yi X, Tao T, Zhou X, Ma L, Tao Y, Wang Y, Gao H, Shen X, Cao H, Li P, Zhou H.   +10 more
europepmc   +1 more source

Reconstruction Algorithms for Electromagnetic Imaging [PDF]

IEEE Transactions on Instrumentation and Measurement, 2003
Two algorithms for image reconstruction in electromagnetic imaging are proposed. The first approach concerns the application of a hybrid version of the genetic algorithm to tomographic imaging of dielectric configurations. In the second approach, buried inhomogeneities are schematized as multilayer infinite dielectric cylinders with elliptic cross ...
PASTORINO, MATTEO, CAORSI, SALVATORE, MASSA, ANDREA, RANDAZZO, ANDREA   +3 more
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Image reconstruction

Physics in Medicine and Biology, 2006
We give an overview of the role of Physics in Medicine and Biology in the development of tomographic reconstruction algorithms. We focus on imaging modalities involving ionizing radiation, CT, PET and SPECT, and cover a wide spectrum of reconstruction problems, starting with classical 2D tomography in the 1970s up to 4D and 5D problems involving ...
Defrise, Michel, Gullberg, Grant
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Reconstruction in diffraction imaging

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1989
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 develop algorithms and constraints on a diffraction imaging system's parameters for accurate reconstruction of the desired image.
M. Soumekh, J.-H. Choi
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Image reconstruction in intravascular photoacoustic imaging

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2011
Intravascular photoacoustic (IVPA) imaging is a technique for visualizing atherosclerotic plaques with differential composition. Unlike conventional photoacoustic tomography scanning, where the scanning device rotates around the subject, the scanning aperture in IVPA imaging is enclosed within the imaged object.
Yae-Lin Sheu, Bao-Yu Hsieh, Pai-Chi Li, Cheng-Ying Chou   +3 more
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Image reconstruction — a tutorial

Computerized Medical Imaging and Graphics, 2001
This paper is written for physicians and presents basic principles of image reconstruction in nuclear medicine. Both analytical and iterative methods are discussed without rigorous mathematics.
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Image reconstruction of tubulin hoops

Journal of Ultrastructure Research, 1981
The two-dimensional projected structure of tubulin hoops is reconstructed at a resolution of 1.6 nm from electron images of negatively stained specimens taken at a low electron dose. Like most tubulin aggregates, the hoops consist of protofilaments. A unique feature of hoops is the grouping of protofilaments into triplets.
Mandelkow, E., Mandelkow, E.
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Advances in PET Image Reconstruction

PET Clinics, 2007
Until recently, the most widely used methods for image reconstruction were direct analytic techniques. Iterative techniques, although computationally much more intensive, produce improved images (principally arising from more accurate modeling of the acquired projection data), enabling these techniques to replace analytic techniques not only in ...
Reader, A. J., Zaidi, H.
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