Results 21 to 30 of about 14,416 (204)
Large Depth-of-Field, Large Eyebox, and Wide Field-of-View Freeform-Holographic Augmented Reality Near-Eye Display. [PDF]
Adv Sci (Weinh)This study proposes an augmented reality (AR) near‐eye display system that simultaneously achieves a large depth‐of‐field (DOF) from 0.25 to 10 m, a wide 50° field‐of‐view (FOV), and a 10 mm × 10 mm viewing eyebox, while maintaining high display performance, good optical see‐through viewing capability, and a compact system form factor.
Wang Y, Yang T, Lyu X, Cheng D, Wang Y.
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NURBS approximation of surface/surface intersection curves
Advances in Computational Mathematics, 1994 To compute parametric representations for non-parametric algebraic intersection curves requires approximation. In this paper, the authors present algorithms to construct a piecewise rational \(B\)-spline approximation to a space curve, which comes from the intersection of two implicitly defined surfaces, or the intersection of two parametric defined ...
Bajaj, Chandrajit L., Xu, Guoliang
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Efficient Culling Techniques for Interactive Deformable NURBS Surfaces on GPU [PDF]
, 2016 [Abstrtact] InfoValue: NURBS (Non-uniform rational B-splines) surfaces are the standard freeform representation in Computer-Aided Design (CAD) applications.
Amor, Margarita +3 more
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Developable Surface Patches Bounded by NURBS Curves [PDF]
Journal of Computational Mathematics, 2020 17 pages, 17 figures.
Fernandez-Jambrina, Leonardo +1 more
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Machines, 2023 Dual NURBS interpolation has been proven an essential technique for high-speed precision machining of complex surfaces. The solution of rotation angles and their derivatives is the basis of kinematic transformation and feedrate optimization in dual NURBS
Pengpeng Sun +4 more
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An Improvement on the Upper Bounds of the Partial Derivatives of NURBS Surfaces
Mathematics, 2020 The Non-Uniform Rational B-spline (NURBS) surface not only has the characteristics of the rational Bézier surface, but also has changeable knot vectors and weights, which can express the quadric surface accurately.
Ye Tian +4 more
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An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints [PDF]
Modeling, Identification and Control, 2020 This paper proposes a novel generic methodology for kinematics of spatial rigid-multibody systems with and without lubricated joints. In this method CAD surface representations in the form of non-uniform rational B-splines (NURBS) are used to address the
Remzija Cerimagic +3 more
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T-spline based unifying registration procedure for free-form surface workpieces in intelligent CMM [PDF]
, 2017 With the development of the modern manufacturing industry, the free-form surface is widely used in various fields, and the automatic detection of a free-form surface is an important function of future intelligent three-coordinate measuring machines (CMMs)
Han, Zhenhua +5 more
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International Journal of Antennas and Propagation, 2015 Although the uniform theory of diffraction (UTD) could be theoretically applied to arbitrarilyshaped convex objects modeled by nonuniform rational B-splines (NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the ...
Song Fu +4 more
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Efficient rendering of trimmed nurbs surfaces
Computer-Aided Design, 1995 An algorithm for the interactive display of trimmed nurbs surfaces is presented. The algorithm converts the nurbs surfaces to Bézier surfaces, and nurbs trimming curves to Bézier curves. It tessellates each trimmed Bézier surface into triangles, and renders them using the triangle rendering capabilities common in current graphics systems.
Kumar, Subodh, Manocha, Dinesh
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