Three-dimensional reconstruction from projections
نویسندگان
چکیده
منابع مشابه
Three-dimensional reconstruction by Chahine’s method from electron microscopic projections corrupted by instrumental aberrations
Three-dimensional reconstruction of nano-scale objects (such as biological macromolecules) can be accomplished using data recorded with a transmission electron microscope. An image obtained by a transmission electron microscope can be conceived of as an ‘ideal’ projection subjected to a contrast transfer function, which attenuates most frequencies, reverses the phase of others and even eliminat...
متن کاملThe Reconstruction of Three-Dimensional Objects from Two Orthogonal Projections and its Application to Cardiac Cineangiography
A method is developed for the reconstruction of a two-dimensional convex symmetric object from two orthogonal projections. To reconstruct a three-dimensional object, the object is divided into thin slices and the slices are individually reconstructed. An experimental result of the reconstruction of a clay model from its X-ray pictures is described. Applicability of this technique to cardiac cin...
متن کاملReconstruction of the three-dimensional NMR spectrum of a protein from a set of plane projections.
Three-dimensional protein NMR spectra can be obtained significantly faster than by traditional methods by a projection-reconstruction procedure related to X-ray tomography. First, two orthogonal projections are acquired in quick two-dimensional experiments with the evolution parameters t(1) or t(2) set to zero. These projections define a three-dimensional lattice; all cross-peaks must lie on th...
متن کاملRadon Transform Techniques for Alignment and Three-dimensional Reconstruction from Random Projections
Since their inception, three-dimensional reconstruction techniques have been based on the theory of Radon transforms. Only much later were Radon transforms recognized as powerful tools for image processing and pattern recognition. Techniques like the common lines technique for finding the orientation of projections of highly symmetrical particles can easily be translated into a technique that u...
متن کاملFast reconstruction of four-dimensional NMR spectra from plane projections.
Four-dimensional NMR spectroscopy can be speeded up by a large factor by a projection-reconstruction technique related to that used in X-ray tomography. The limited amount of information recorded in a few suitably-tilted projection planes suffices to recreate the entire four-dimensional spectrum. The method is demonstrated by reference to the 500 MHz spectrum of 1 millimolar aqueous solution of...
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ژورنال
عنوان ژورنال: Applications of Mathematics
سال: 1985
ISSN: 0862-7940,1572-9109
DOI: 10.21136/am.1985.104131