Results 1 to 10 of about 34,900 (289)

Searching for Radial Symmetry [PDF]

open access: yesi-Perception, 2017
Symmetry is ubiquitous in the natural world. Numerous investigations, dating back over one hundred years, have explored the visual processing of symmetry. However, these studies have been concerned with mirror symmetry, overlooking radial (or rotational)
Ben J. Jennings, Frederick A. A. Kingdom
doaj   +8 more sources

Radial Symmetry Does Not Preclude Condorcet Cycles If Different Voters Weight the Issues Differently

open access: yesEconomies, 2022
Radial symmetry, by our definition, is a precise condition on continuous ideal-point distributions, rarely if ever found exactly in practice, that is similar to the classical 1967 symmetry condition of Plott but pertains to an infinite electorate; the ...
Richard F. Potthoff
doaj   +4 more sources

Radial symmetry and monotonicity for an integral equation

open access: yesJournal of Mathematical Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ma, Li, Chen, Dezhong
exaly   +3 more sources

A new radial symmetry measure applied to photogrammetry

open access: yesPattern Analysis and Applications, 2012
This work presents a new measure for radial symmetry and an algorithm for its computation. This measure identifies radially symmetric blobs as locations with contributions from all orientations at some scale. Hence, at a given scale, radial symmetry is computed as the product of the responses of a set of even symmetric feature detectors, with different
Xosé M Pardo   +2 more
exaly   +4 more sources

Minimax Density Estimation Under Radial Symmetry

open access: yesIEEE Access, 2023
This study illustrates a dimensionality reduction effect of radial symmetry in nonparametric density estimation. To deal with the class of radially symmetric functions, we adopt a generalized translation operation that preserves the symmetry structure ...
Kwan-Young Bak, Ja-Yong Koo
doaj   +2 more sources

Radial symmetry in a chimeric glutamate receptor pore. [PDF]

open access: yesNat Commun, 2014
Ionotropic glutamate receptors comprise two conformationally different A/C and B/D subunit pairs. Closed channels exhibit fourfold radial symmetry in the transmembrane domain (TMD) but transition to twofold dimer-of-dimers symmetry for extracellular ligand binding and N-terminal domains.
Wilding TJ, Lopez MN, Huettner JE.
europepmc   +5 more sources

On radial symmetry of rotating vortex patches in the disk

open access: yesJournal of Mathematical Analysis and Applications, 2021
In this note, we consider the radial symmetry property of rotating vortex patches for the 2D incompressible Euler equations in the unit disc. By choosing a suitable vector field to deform the patch, we show that each simply-connected rotating vortex patch $D$ with angular velocity $Ω$, $Ω\geq \max\{{1}/{2},({2 l^2})/{(1-l^2)^2}\}$ or $Ω\leq -({2 l^2})/{
Guodong Wang, Bijun Zuo
exaly   +4 more sources

On the approximation of the elastica functional in radial symmetry [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2005
The aim of the paper is to begin the analysis of the \(\Gamma\)-limit in \(L^1_{\text{loc}}({\mathbb R}^n)\), as \(\varepsilon\to0\), of the sequence of the functionals \[ {\mathcal F}_\varepsilon(v)=\begin{cases} \int_{{\mathbb R}^n}\left[m_\varepsilon(v)+\varepsilon^{-1}(\text{ eul}_\varepsilon(v))^2\right]dx &\text{if }v\in H^2_{\text{loc}}({\mathbb
Bellettini G
exaly   +4 more sources

Fast radial symmetry for detecting points of interest

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2003
A new transform is presented that utilizes local radial symmetry to highlight points of interest within a scene. Its low-computational complexity and fast runtimes makes this method well-suited for real-time vision applications. The performance of the transform is demonstrated on a wide variety of images and compared with leading techniques from the ...
Loy, G., Zelinsky, Alex
exaly   +3 more sources

Radial Symmetry of p-Harmonic Minimizers [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2018
18 pages, 2 ...
Aleksis Koski, Jani Onninen
openaire   +5 more sources

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