Results 11 to 20 of about 245,475 (190)
On extending the ADMM algorithm to the quaternion algebra setting [PDF]
Many image and signal processing problems benefit from quaternion based models, due to their property of processing different features simultaneously.
De Bie, HendrikTW060020000664408010020445350000-0003-3806-7836F7EBB716-F0ED-11E1-A9DE-61C894A0A6B4 +4 more
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Quaternion and Split Quaternion Neural Networks for Low-Light Color Image Enhancement
In this study, two models of multilayer quaternionic feedforward neural networks are presented. Whereas the first model is based on quaternion algebra, the second model uses split quaternion algebra.
Eduardo Jesus De Davila-Meza +1 more
doaj +1 more source
Existence of Split Property in Quaternion Algebra Over Composite of Quadratic Fields
Quaternions are extensions of complex numbers that are four-dimensional objects. Quaternion consists of one real number and three complex numbers, commonly denoted by the standard vectors and .
Muhammad Faldiyan +2 more
doaj +1 more source
RKHS Representations for Augmented Quaternion Random Signals: Application to Detection Problems
The reproducing kernel Hilbert space (RKHS) methodology has shown to be a suitable tool for the resolution of a wide range of problems in statistical signal processing both in the real and complex domains.
Antonia Oya
doaj +1 more source
Canonical quaternion algebra of the Whitehead link complement [PDF]
Let ΓM be the fundamental group of a knot or link complement M. The discrete faithful representation of ΓM into PSL2(C) has an associated quaternion algebra. We can extend this notation to other representations, which are encoded by the character variety
Palmer, Rebekah, 0000-0002-1240-6759
core +1 more source
In this paper, we compare three inverse kinematic formulation methods for the serial industrial robot manipulators. All formulation methods are based on screw theory.
Emre Sariyildiz +2 more
doaj +2 more sources
Wiener Algebra for the Quaternions [PDF]
We define and study the counterpart of the Wiener algebra in the quaternionic setting, both for the discrete and continuous case. We prove a Wiener-Lévy type theorem and a factorization theorem. We give applications to Toeplitz and Wiener-Hopf operators.
Alpay, Daniel +3 more
openaire +3 more sources
Algebraic Techniques for Canonical Forms and Applications in Split Quaternionic Mechanics
The algebra of split quaternions is a recently increasing topic in the study of theory and numerical computation in split quaternionic mechanics. This paper, by means of a real representation of a split quaternion matrix, studies the problem of canonical
Tongsong Jiang +4 more
doaj +1 more source
Bounds on the levels of composition algebras [PDF]
Certain families of quaternion and octonion algebras are conjectured to be of level and sublevel n. A proof of this conjecture is offered in the case where n is a power of two. Hoffmann's proof of the existence of infinitely many new values for the level
James O'Shea +2 more
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Splitting of differential quaternion algebras [PDF]
We study differential splitting fields of quaternion algebras with derivations. A quaternion algebra over a field $k$ is always split by a quadratic extension of $k$.
Singh, Anupam +2 more
core +1 more source

