Literature DB >> 21516173

Analytically exact spiral scheme for generating uniformly distributed points on the unit sphere.

Cheng Guan Koay1.   

Abstract

The problem of constructing a set of uniformly-distributed points on the surface of a sphere, also known as the Thomson problem, has a long and interesting history, which dates back to J.J. Thomson in 1904. A particular variant of the Thomson problem that is of great importance to biomedical imaging is that of generating a nearly uniform distribution of points on the sphere via a deterministic scheme. Although the point set generated through the minimization of electrostatic potential is the gold standard, minimizing the electrostatic potential of one thousand points (or charges) or more remains a formidable task. Therefore, a deterministic scheme capable of generating efficiently and accurately a set of uniformly-distributed points on the sphere has an important role to play in many scientific and engineering applications, not the least of which is to serve as an initial solution (with random perturbation) for the electrostatic repulsion scheme. In the work, we will present an analytically exact spiral scheme for generating a highly uniform distribution of points on the unit sphere.

Entities:  

Year:  2011        PMID: 21516173      PMCID: PMC3079956          DOI: 10.1016/j.jocs.2010.12.003

Source DB:  PubMed          Journal:  J Comput Sci


  8 in total

1.  Optimal strategies for measuring diffusion in anisotropic systems by magnetic resonance imaging.

Authors:  D K Jones; M A Horsfield; A Simmons
Journal:  Magn Reson Med       Date:  1999-09       Impact factor: 4.668

2.  Undersampled projection reconstruction applied to MR angiography.

Authors:  D C Peters; F R Korosec; T M Grist; W F Block; J E Holden; K K Vigen; C A Mistretta
Journal:  Magn Reson Med       Date:  2000-01       Impact factor: 4.668

3.  A unifying theoretical and algorithmic framework for least squares methods of estimation in diffusion tensor imaging.

Authors:  Cheng Guan Koay; Lin-Ching Chang; John D Carew; Carlo Pierpaoli; Peter J Basser
Journal:  J Magn Reson       Date:  2006-07-07       Impact factor: 2.229

4.  Quasi Monte Carlo-based isotropic distribution of gradient directions for improved reconstruction quality of 3D EPR imaging.

Authors:  Rizwan Ahmad; Yuanmu Deng; Deepti S Vikram; Bradley Clymer; Parthasarathy Srinivasan; Jay L Zweier; Periannan Kuppusamy
Journal:  J Magn Reson       Date:  2006-11-13       Impact factor: 2.229

5.  Analytically exact correction scheme for signal extraction from noisy magnitude MR signals.

Authors:  Cheng Guan Koay; Peter J Basser
Journal:  J Magn Reson       Date:  2006-02-20       Impact factor: 2.229

6.  The elliptical cone of uncertainty and its normalized measures in diffusion tensor imaging.

Authors:  Cheng Guan Koay; Uri Nevo; Lin-Ching Chang; Carlo Pierpaoli; Peter J Basser
Journal:  IEEE Trans Med Imaging       Date:  2008-06       Impact factor: 10.048

7.  A strategy for sampling on a sphere applied to 3D selective RF pulse design.

Authors:  S T Wong; M S Roos
Journal:  Magn Reson Med       Date:  1994-12       Impact factor: 4.668

8.  MR diffusion tensor spectroscopy and imaging.

Authors:  P J Basser; J Mattiello; D LeBihan
Journal:  Biophys J       Date:  1994-01       Impact factor: 4.033

  8 in total
  6 in total

1.  A simple scheme for generating nearly uniform distribution of antipodally symmetric points on the unit sphere.

Authors:  Cheng Guan Koay
Journal:  J Comput Sci       Date:  2011-12

2.  Sparse and optimal acquisition design for diffusion MRI and beyond.

Authors:  Cheng Guan Koay; Evren Ozarslan; Kevin M Johnson; M Elizabeth Meyerand
Journal:  Med Phys       Date:  2012-05       Impact factor: 4.071

3.  Extremely efficient and deterministic approach to generating optimal ordering of diffusion MRI measurements.

Authors:  Cheng Guan Koay; Samuel A Hurley; M Elizabeth Meyerand
Journal:  Med Phys       Date:  2011-08       Impact factor: 4.071

4.  lop-DWI: A Novel Scheme for Pre-Processing of Diffusion-Weighted Images in the Gradient Direction Domain.

Authors:  Farshid Sepehrband; Jeiran Choupan; Emmanuel Caruyer; Nyoman D Kurniawan; Yaniv Gal; Quang M Tieng; Katie L McMahon; Viktor Vegh; David C Reutens; Zhengyi Yang
Journal:  Front Neurol       Date:  2015-01-12       Impact factor: 4.003

5.  On the collision of rods in a quiescent fluid.

Authors:  Jonasz Słomka; Roman Stocker
Journal:  Proc Natl Acad Sci U S A       Date:  2020-02-03       Impact factor: 11.205

6.  Determining the charge distribution and the direction of bond cleavage with femtosecond anisotropic x-ray liquidography.

Authors:  Jun Heo; Jong Goo Kim; Eun Hyuk Choi; Hosung Ki; Doo-Sik Ahn; Jungmin Kim; Seonggon Lee; Hyotcherl Ihee
Journal:  Nat Commun       Date:  2022-01-26       Impact factor: 14.919

  6 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.