Results 41 to 50 of about 60,017 (247)

Robot Object Manipulation Using Stereoscopic Vision and Conformal Geometric Algebra

open access: yesApplied Bionics and Biomechanics, 2011
This paper uses geometric algebra to formulate, in a single framework, the kinematics of a three finger robotic hand, a binocular robotic head, and the interactions between 3D objects, all of which are seen in stereo images.
Julio Zamora-Esquivel   +1 more
doaj   +1 more source

Multimodal Medical Image Registration Based on Feature Spheres in Geometric Algebra

open access: yesIEEE Access, 2018
Multi-modal image registration in medical image analysis is very challenging as the appearance of body structures in images from different imaging devices can be very different. In this paper, we propose a new method [GA-speeded up robust features (SURF)]
Wenming Cao   +4 more
doaj   +1 more source

Conical spaces, modular invariance and c p,1 holography

open access: yesJournal of High Energy Physics, 2021
We propose a non-unitary example of holography for the family of two-dimensional logarithmic conformal field theories with negative central charge c = c p,1 = −6p + 13 − 6p −1.
Joris Raeymaekers
doaj   +1 more source

LAPLACE EQUATIONS, CONFORMAL SUPERINTEGRABILITY AND BÔCHER CONTRACTIONS

open access: yesActa Polytechnica, 2016
Quantum superintegrable systems are solvable eigenvalue problems. Their solvability is due to symmetry, but the symmetry is often ``hidden''.The symmetry generators of 2nd order superintegrable systems in 2 dimensions close under commutation to define ...
Ernest G. Kalnins   +2 more
doaj   +1 more source

AI‐Physics‐Experiment Trinity for Integrated Protein Dynamics Modeling

open access: yesAdvanced Science, EarlyView.
This review unites experiments, physics‐based simulations, and AI as a synergistic triad for protein dynamics modeling. It highlights integrative strategies, resolves sampling and forcefield bottlenecks, and outlines challenges and future directions for accurate, interpretable conformational ensemble prediction.
Chen Shi   +4 more
wiley   +1 more source

Capacitive versus Faradaic Microelectrodes for Extracellular Stimulation: A Fully Coupled FEM–Hodgkin–Huxley Study of Thresholds and Current Redistribution

open access: yesAdvanced Electronic Materials, EarlyView.
A fully coupled FEM–HH model shows that ideally capacitive microelectrodes can achieve lower charge‐density thresholds than Faradaic contacts under current‐controlled stimulation. The advantage stems from the dynamics of surface current density on capacitive interfaces, which redirects current beneath adherent neurons.
Aleksandar Opančar   +2 more
wiley   +1 more source

Inverse kinematics computation in computer graphics and robotics using conformal geometric algebra [PDF]

open access: yes, 2005
We focus on inverse kinematics applications in computer graphics and robotics based on Conformal Geometric Algebra. Here, geometric objects like spheres and circles that are often needed in inverse kinematics algorithms are simply represented by ...
Bayro-Corrochano, E.   +2 more
core   +1 more source

Pose Estimation of Non-Cooperative Space Targets Based on Cross-Source Point Cloud Fusion

open access: yesRemote Sensing, 2021
On-orbit space technology is used for tasks such as the relative navigation of non-cooperative targets, rendezvous and docking, on-orbit assembly, and space debris removal.
Jie Li, Yiqi Zhuang, Qi Peng, Liang Zhao
doaj   +1 more source

Interpretability and Representability of Commutative Algebra, Algebraic Topology, and Topological Spectral Theory for Real‐World Data

open access: yesAdvanced Intelligent Discovery, EarlyView.
This article investigates how persistent homology, persistent Laplacians, and persistent commutative algebra reveal complementary geometric, topological, and algebraic invariants or signatures of real‐world data. By analyzing shapes, synthetic complexes, fullerenes, and biomolecules, the article shows how these mathematical frameworks enhance ...
Yiming Ren, Guo‐Wei Wei
wiley   +1 more source

Oriented conformal geometric algebra [PDF]

open access: yes, 2005
In [12] Stolfi developed a complete theory of Oriented Projective Geometry. He showed that assigning meaning to the sign of an otherwise homogenous representation of geometry could provide a multitude of benefits.
Joan Lasenby, Jonathan Cameron
core  

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