3D face recognition with sparse spherical representations [PDF]
Pattern Recognition, 2010 This paper addresses the problem of 3D face recognition using simultaneous sparse approximations on the sphere. The 3D face point clouds are first aligned with a novel and fully automated registration process. They are then represented as signals on the 2D sphere in order to preserve depth and geometry information.
Ivana Tosic, P Frossard
exaly +3 more sources
Spherical indecomposable representations of Lie superalgebras
Journal of Algebra, 2020 We present a classification of all spherical indecomposable representations of classical and exceptional Lie superalgebras. We also include information about stabilizers, symmetric algebras, and Borels for which sphericity is achieved. In one such computation, the symmetric algebra of the standard module of $\mathfrak{osp}(m|2n)$ is computed, which in ...
Alexander Sherman
exaly +4 more sources
Spherical representations of Lie supergroups
Journal of Functional Analysis, 2015 The classical Cartan-Helgason theorem characterises finite-dimensional spherical representations of reductive Lie groups in terms of their highest weights. We generalise the theorem to the case of a reductive symmetric supergroup pair $(G,K)$ of even type. Along the way, we compute the Harish-Chandra $c$-function of the symmetric superspace $G/K$.
Alexander Alldridge +1 more
exaly +3 more sources
MagIC v5.10: a two-dimensional message-passing interface (MPI) distribution for pseudo-spectral magnetohydrodynamics simulations in spherical geometry [PDF]
Geoscientific Model Development, 2021 We discuss two parallelization schemes for MagIC, an open-source, high-performance, pseudo-spectral code for the numerical solution of the magnetohydrodynamics equations in a rotating spherical shell.
R. Lago +4 more
doaj +1 more source
Annihilator varieties of distinguished modules of reductive Lie algebras
Forum of Mathematics, Sigma, 2021 We provide a microlocal necessary condition for distinction of admissible representations of real reductive groups in the context of spherical pairs.
Dmitry Gourevitch +2 more
doaj +1 more source
ROAD SEGMENTATION ON LOW RESOLUTION LIDAR POINT CLOUDS FOR AUTONOMOUS VEHICLES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Point cloud datasets for perception tasks in the context of autonomous driving often rely on high resolution 64-layer Light Detection and Ranging (LIDAR) scanners.
L. Gigli +6 more
doaj +1 more source
Some Characteristic Properties of Non-Null Curves in Minkowski 3-Space
Mathematics, 2023 This paper gives new characteristic properties of non-null spherical and rectifying curves in Minkowski 3-space E13. In the light of the causal characteristics, we give some representations of rectifying non-null curves.
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj +1 more source
SNICAR-ADv3: a community tool for modeling spectral snow albedo [PDF]
Geoscientific Model Development, 2021 The Snow, Ice, and Aerosol Radiative (SNICAR) model has been used in various capacities over the last 15 years to model the spectral albedo of snow with light-absorbing constituents (LACs).
M. G. Flanner +9 more
doaj +1 more source
Discrete Spherical Image Representation for CNN-Based Inclination Estimation
IEEE Access, 2020 How an image is represented as the input of a convolutional neural network (CNN) is important because this input directly influences the performance of the CNN.
Yuhao Shan, Shigang Li
doaj +1 more source
A comparative study of semantic segmentation of omnidirectional images from a motorcycle perspective
Scientific Reports, 2022 The semantic segmentation of omnidirectional urban driving images is a research topic that has increasingly attracted the attention of researchers, because the use of such images in driving scenes is highly relevant.
Ahmed Rida Sekkat +3 more
doaj +1 more source