Results 1 to 10 of about 230 (143)
RGB-D Object SLAM Using Quadrics for Indoor Environments [PDF]
Sensors, 2020 Indoor service robots need to build an object-centric semantic map to understand and execute human instructions. Conventional visual simultaneous localization and mapping (SLAM) systems build a map using geometric features such as points, lines, and ...
Ziwei Liao +3 more
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Quadrics and Scherk towers. [PDF]
Mon Hefte Math, 2018 We investigate the relation between quadrics and their Christoffel duals on the one hand, and certain zero mean curvature surfaces and their Gauss maps on the other hand. To study the relation between timelike minimal surfaces and the Christoffel duals of 1-sheeted hyperboloids we introduce para-holomorphic elliptic functions. The curves of type change
Fujimori S +4 more
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Formulation development and optimization of palm kernel oil esters-based nanoemulsions containing sodium diclofenac [PDF]
International Journal of Nanomedicine, 2014 Malahat Rezaee,1 Mahiran Basri,1,2 Raja Noor Zaliha Raja Abdul Rahman,3 Abu Bakar Salleh,3 Naz Chaibakhsh,4 Roghayeh Abedi Karjiban21Institute of Bioscience, 2Faculty of Science, 3Faculty of Biotechnology and Biomolecular Science, Universiti Putra ...
Rezaee M +5 more
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On the Implicit Equation of Conics and Quadrics Offsets
Mathematics, 2021 A new determinantal representation for the implicit equation of offsets to conics and quadrics is derived. It is simple, free of extraneous components and provides a very compact expanded form, these representations being very useful when dealing with ...
Jorge Caravantes +3 more
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On Severi varieties as intersections of a minimum number of quadrics
Cubo, 2022 Let $\cV$ be a variety related to the second row of the Freudenthal-Tits Magic square in $N$-dimensional projective space over an arbitrary field. We show that there exist $M\leq N$ quadrics intersecting precisely in $\cV$ if and only if there exists a ...
Hendrik Van Maldeghem, Magali Victoor
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Supporting quadric method for collimated beams [PDF]
Компьютерная оптика, 2021 We consider the problem of calculating a refractive element with two surfaces, forming a flat front and a given distribution of illumination. The supporting quadrics method is formulated for calculating a given optical element and it is shown that this ...
A.A. Mingazov +2 more
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Crooked Maps in Finite Fields [PDF]
Discrete Mathematics & Theoretical Computer Science, 2005 We consider the maps $f:\mathbb{F}_{2^n} →\mathbb{F}_{2^n}$ with the property that the set $\{ f(x+a)+ f(x): x ∈F_{2^n}\}$ is a hyperplane or a complement of hyperplane for every $a ∈\mathbb{F}_{2^n}^*$.
Gohar Kyureghyan
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Quadrics for Structuring Invariant Space-Time Wave Packets [PDF]
EPJ Web of Conferences, 2022 We provide a general approach for structuring invariant 3D+1 optical wave packets in both bulk and structured dispersive media, through a simple engineering of phase-matched space-time frequencies on quadric surfaces.
Béjot Pierre, Kibler Bertrand
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A Remark on Quadrics in Projective Klingenberg Spaces over a Certain Local Algebra
Mathematics, 2020 This article is devoted to some polar properties of quadrics in the projective Klingenberg spaces over a local ring which is a linear algebra generated by one nilpotent element.
Marek Jukl
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Plane section of cone and cylinder in computer geometry [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2005 In this paper a mathematical apparatus for determination of plane section of cone and cylinder was formed. By using the descriptive geometric approach the contour lines of these quadrics were determined.
Obradović Ratko M., Milojević Zoran
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