Results 211 to 220 of about 717,915 (253)

Three-Dimensional Reconstruction of Chromatin Fibers

Journal of Biomolecular Structure and Dynamics, 1983
We have obtained tilt series of thin sections of chromatin fibers embedded in araldite-epon and stained with uranyl acetate. The tilt series contain between 12 and 18 micrographs, spanning tilt ranges between 84 and 117 degrees. Reconstructions in three dimensions have been obtained by filtered back-projection from each tilt series. The reconstructions
J A, Subirana, S, Muñoz-Guerra, M, Radermacher, J, Frank   +3 more
openaire   +2 more sources

Three-dimensional reconstruction of biological sections

Journal of Biomedical Engineering, 1982
To observe internal detail in biological structures using light or electron microscopy, specimens need to be prepared from thin sections. Quantitative analysis of these section requires the transfer of complete section images, or selected features from them, into a computer. Where a complete structure is represented by a series of consecutive sections,
W J, Perkins, R J, Green
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A three-dimensional reconstruction of the rat hypothalamus

Brain Research Bulletin, 1991
Tracings of structures present in serial coronal frozen sections of the rat hypothalamus were entered into an IBM-PC and sections were aligned in space using a program for 3-dimensional reconstruction. The positions and relative volumes of 16 major hypothalamic nuclei were accurately displayed in lateral, medial, and superior views of the hypothalamus.
J K, Young, G B, Stanton
openaire   +2 more sources

Three-Dimensional Mass Reconstruction in Mammography

2004
In this paper, we present a novel method for reconstructing the 3-D shapes of masses. We first use the Shape from Silhouettes technique to get an approximation to the 3-D shape of the mass. We calculate the centroid of the mass in the 2-D images and back-project them to get their intersection in 3-D.
Ling Shao 0001, Michael Brady 0001
openaire   +1 more source

Three-Dimensional Velocity Field Reconstruction

Journal of Biomechanical Engineering, 2004
The problem of inter-slice magnetic resonance (MR) image reconstruction is encountered often in medical imaging applications. In such scenarios, there is a need to approximate information not captured in contiguously acquired MR images due to hardware sampling limitations.
David, Frakes, Mark, Smith, Diane, de Zélicourt, Kerem, Pekkan, Ajit, Yoganathan   +4 more
openaire   +2 more sources

On three-dimensional surface reconstruction methods

IEEE Transactions on Pattern Analysis and Machine Intelligence, 1991
A survey is presented of some of the surface reconstruction methods that can be found in the literature; the focus is on a small, recent, and important subset of the published reconstruction techniques. The techniques are classified based on the surface representation used, implicit versus explicit functions. A study is made of the important aspects of
Ruud M. Bolle, Baba C. Vemuri
openaire   +1 more source

Three-Dimensional Reconstruction of Orbital Fractures

Journal of Visualized Experiments
Reconstruction of orbital fractures can be challenging. The limited exposure, involvement of several wall defects, and the variable three-dimensional (3D) anatomy result in difficulty in achieving superior outcomes in complex cases. The use of patient-specific implants for the reconstruction of orbital defects shows great promise.
Andrei, Krasovsky, Ahmad, Hija, Nidal, Zeineh, Tal, Capucha, Ori, Blanc, Omri, Emodi, Adi, Rachmiel, Dekel, Shilo   +7 more
openaire   +2 more sources

Three-dimensional reconstruction

European Radiology, 1992
M. Vahlensieck, Ph. Lang, W. P. Chan, S. Grampp, H. K. Genant   +4 more
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Three-dimensional reconstruction of the cochlea

Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society, 2003
Optical projections of a stained, intact guinea pig cochlea are reconstructed from 36 projection images, spaced every 5 degrees around a semicircle, a three-dimensional image is computed within a cube of dimensions 256*256*256 pixels. Acquisition of data about a single tilt axis allows the 3-D reconstruction problem to be simplified to the ...
C.S. Brown, A.C. Nelson, F.A. Spelman
openaire   +1 more source

A Three-Dimensional Reconstruction of a Hemilarynx

Archives of Otolaryngology, 1963
W F, KONIG, H, VON LEDEN
openaire   +2 more sources