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Topic Area: Modeling
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Displaying records 51 to 60 of 136 records.
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51. Estimating Volumes of Near-spherical Molded Artifacts
Series: Journal of Research (NIST JRES)
Topic: Modeling
Published: 5/3/2010
Authors: David E. Gilsinn, Bruce R. Borchardt, Amelia Tebbe
Abstract: The Food and Drug Administration (FDA) is conducting research on developing reference lung cancer cancer lesions, called phantoms, to test computed tomography (CT) scanners and their software. FDA loaned two semi-spherical phantoms to the National In ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904645

52. Estimating Volumes of Simulated Lung Cancer Nodules
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7571
Topic: Modeling
Published: 7/15/2009
Authors: David E. Gilsinn, Bruce R. Borchardt, Amelia Tebbe
Abstract: Lung cancer is a disease of uncontrolled cell growth in tissues of the lung. Computed tomography (CT) shows promise in detecting lung cancers at earlier, more operable stages, when survival is better. CT scans generate multiple 2-D slice images of th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901958

53. Evaluation of 3D Interest Point Detection Techniques via Human-generated Ground Truth
Topic: Modeling
Published: 6/29/2012
Authors: Afzal A Godil, Helin Dutagaci
Abstract: In this paper, we present an evaluation strategy based on human-generated ground truth to measure the performance of 3D interest point detection techniques. We provide quantitative evaluation measures that relate automatically detected interest point ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911521

54. Fast Iterative Solver for Convection-Diffusion Systems with Spectral Elements
Topic: Modeling
Published: 10/16/2009
Authors: Aaron Lott, Howard Elman
Abstract: We introduce a solver and preconditioning technique based on Domain Decomposition and the Fast Diagonalization Method that can be applied to tensor product based discretizations of the steady convection-diffusion equation. The method is based on iter ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901466

55. Fast Sequential Importance Sampling fo Estimate the Graph Reliability Polynomial
Topic: Modeling
Published: 11/5/2012
Authors: David G. Harris, Francis Sullivan, Isabel M Beichl
Abstract: The reliability polynomial of a graph measures the number of its connected subgraphs of various sizes. Algortihms based on sequential importance sampling (SIS) have been proposed to estimate a graph's reliahbility polynomial. We develop an improved ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905927

56. Feature Measures for the Segmentation of Neuronal Membrane using Machine Learning Algorithm
Topic: Modeling
Published: 1/6/2014
Authors: Afzal A Godil, Saadia S. Iftikhar
Abstract: In this paper, we present a Support Vector Machine (SVM) based pixel classifier for a semi-automated segmentation algorithm to detect neuronal membrane structures in stacks of electron microscopy images of brain tissue samples. This algorithm uses ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914363

57. Feature-preserved 3D Canonical Form
Topic: Modeling
Published: 7/28/2012
Authors: Afzal A Godil, Zhouhui Lian
Abstract: Abstract Measuring the dissimilarity between non-rigid objects is a challenging problem in 3D shape retrieval. One potential solution is to construct the models‰ 3D canonical forms (i.e., isometry-invariant representations in 3D Euclidean domain) on ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911523

58. First Variation of the General Curvature-dependent Surface Energy
Topic: Modeling
Published: 1/1/2012
Authors: Gunay Dogan, Ricardo H. Nochetto
Abstract: We consider general weighted surface energies, where the energies have the form of weighted integrals over a closed surface and the weight depends on the normal and the mean curvature of the surface. Energies of this form have applications in many ar ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901101

59. Fourier Expansions for a Logarithmic Fundamental Solution of the Polyharmonic Equation
Topic: Modeling
Published: 9/28/2012
Author: Howard S Cohl
Abstract: In even-dimensional Euclidean space for integer powers of the Laplacian greater than or equal to the dimension divided by two, a fundamental solution for the polyharmonic equation has logarithmic behavior. We give two approaches for developing a Fou ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910119

60. Fourier and Gegenbauer expansions for a fundamental solution of the Laplacian in the hyperboloid model of hyperbolic geometry
Topic: Modeling
Published: 3/23/2012
Authors: Howard S Cohl, Ernie G. Kalnins
Abstract: Due to the isotropy of d-dimensional hyperbolic space, there exists a spherically symmetric fundamental solution for its corresponding Laplace-Beltrami operator. The R-radius hyperboloid model of hyperbolic geometry with R > 0 represents a Riemannian ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908852



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