Global ETD Search
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Showing 1 to 7 of 7 for “"Algebraic reconstruction technique (ART)"”.
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An algebraic reconstruction technique (ART) for the synthesis of three-dimensional models of particle aggregates from projective representations
… materials is significantly dependent on particle morphology. However, quantification of this dependence is a challenging task owing to a dearth of quantitative models for describing particle shape and the difficulty of modeling angular particle assemblies. The situation becomes more …
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The Study of Binary Steering Algorithms in Discrete Tomography
… project we will study the binary steering technique in iterative methods for image reconstruction in discrete tomography (DT). We will compare the effectiveness of three common algorithms to solve binary systems. The methods used are the Algebraic Reconstruction Technique (ART), Cimmino …
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The Reconstruction of Binary Images in Discrete Tomography by Using the Binary Steering Scheme
<p>We propose and study the reconstruction of large binary images in discrete tomography (DT) by applying the binary steering scheme to the block-iterative projections methods for solving an underdetermined linear system Ax = b. Three algorithms: Algebraic Reconstruction Technique (ART) Algorithm, …
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Development and Validation of Reconstruction Algorithms for 3D Tomography Diagnostics
This work reports three reconstruction algorithms developed to address the practical issues encountered in 3D tomography diagnostics, such as the limited view angles available in many practical applications, the large scale and nonlinearity of the problems when they are in 3D, and the measurement …
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Optimization of optical computed tomography techniques for the synthesis of particle aggregate models
<p>The characterization of 3-D shapes of particles in geomaterial aggregate mixtures is important for understanding the micro-mechanics of granular materials. Also, numerical synthesis of 3-D particle shapes from their corresponding shape descriptors is required for developing discrete element …
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Proton Computed Tomography: Matrix Data Generation Through General Purpose Graphics Processing Unit Reconstruction
… radiation therapy compared with the current techniques, which are based on X-ray CT. Images are reconstructed in pCT by solving a large and sparse system of linear equations. The size of the system necessitates matrix-partitioning and parallel reconstruction algorithms to be implemented …
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Robust and efficient methods for proton computed tomography.
… Since the early developments of this imaging technique in 1970's, there have been significant improvements regarding the reconstruction of accurate RSP which makes pCT a reliable alternative to X-ray CT for planning proton therapy treatments. There are several conditions in pCT that can …