Literature DB >> 22125587

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

Cheng Guan Koay1.   

Abstract

A variant of the Thomson problem, which is about placing a set of points uniformly on the surface of a sphere, is that of generating uniformly distributed points on the sphere that are endowed with antipodal symmetry, i.e., if x is an element of the point set then -x is also an element of that point set. Point sets with antipodal symmetry are of special importance to many scientific and engineering applications. Although this type of point sets may be generated through the minimization of a slightly modified electrostatic potential, the optimization procedure becomes unwieldy when the size of the point set increases beyond a few thousands. Therefore, it is desirable to have a deterministic scheme capable of generating this type of point set with near uniformity. In this work, we will present a simple deterministic scheme to generate nearly uniform point sets with antipodal symmetry.

Entities:  

Year:  2011        PMID: 22125587      PMCID: PMC3223966          DOI: 10.1016/j.jocs.2011.06.007

Source DB:  PubMed          Journal:  J Comput Sci


  13 in total

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

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Journal:  J Magn Reson       Date:  2006-07-07       Impact factor: 2.229

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Journal:  J Magn Reson       Date:  2006-11-13       Impact factor: 2.229

8.  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

9.  Optimal real-time Q-ball imaging using regularized Kalman filtering with incremental orientation sets.

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

Authors:  Cheng Guan Koay
Journal:  J Comput Sci       Date:  2011-03-01
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  8 in total

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

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5.  4D hyperspherical harmonic (HyperSPHARM) representation of surface anatomy: a holistic treatment of multiple disconnected anatomical structures.

Authors:  A Pasha Hosseinbor; Moo K Chung; Cheng Guan Koay; Stacey M Schaefer; Carien M van Reekum; Lara Peschke Schmitz; Matt Sutterer; Andrew L Alexander; Richard J Davidson
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6.  A Diffusion MRI Tractography Connectome of the Mouse Brain and Comparison with Neuronal Tracer Data.

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8.  Optimizing Diffusion Imaging Protocols for Structural Connectomics in Mouse Models of Neurological Conditions.

Authors:  Robert J Anderson; Christopher M Long; Evan D Calabrese; Scott H Robertson; G Allan Johnson; Gary P Cofer; Richard J O'Brien; Alexandra Badea
Journal:  Front Phys       Date:  2020-04-21
  8 in total

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