Texture Mapping on NURBS Surface
Texture mapping allows high resolution details over 3D surfaces. Nevertheless, texture mapping has a number of unresolved problems such as distortion, boundary between textures or filtering. On the other hand, NURBS surfaces are usually decomposed into a
Sergio Vázquez, Margarita Amor
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Information hiding through variance of the parametric orientation underlying a B-rep face [PDF]
Watermarking technologies have been proposed for many different,types of digital media. However, to this date, no viable watermarking techniques have yet emerged for the high value B-rep (i.e.
Corney, Jonathan +2 more
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Systems Issues in Solid Freeform Fabrication [PDF]
This paper is concerned with the systems aspects of the Solid Freeform Fabrication (SFF) technology, i.e., the issues that deal with getting an external geometric CAD model to automatically control the physical layering fabrication process as directly as
Wozny, Michael
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Large Depth-of-Field, Large Eyebox, and Wide Field-of-View Freeform-Holographic Augmented Reality Near-Eye Display. [PDF]
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.
europepmc +2 more sources
Segmentation and semantic labelling of RGBD data with convolutional neural networks and surface fitting [PDF]
We present an approach for segmentation and semantic labelling of RGBD data exploiting together geometrical cues and deep learning techniques. An initial over-segmentation is performed using spectral clustering and a set of non-uniform rational B-spline ...
Minto, Ludovico +2 more
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An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints [PDF]
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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A priori error for unilateral contact problems with Lagrange multiplier and IsoGeometric Analysis [PDF]
In this paper, we consider unilateral contact problem without friction between a rigid body and deformable one in the framework of isogeometric analysis.
Antolin, Pablo +2 more
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Five-Axis Tool Path Generation of Injection Mold Represented by T-Spline Surface
Injection molding is widely used in industries to produce polymeric products. At present, compound NURBS surfaces are commonly used to represent freeform surfaces in mold models.
Ce Shang +5 more
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T-Spline Surface Toolpath Generation Using Watershed-Based Feature Recognition
The freeform surface is treated as a single machining region for most traditional toolpath generation algorithms. However, due to the complexity of a freeform surface, it is impossible to produce a high-quality surface using one unique machining process.
Yazui Liu, Gang Zhao, Pengfei Han
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Biomimetic Design and Fabrication of Interior Architecture of Tissue Scaffolds Using Solid Freeform Fabrication [PDF]
Modeling, design and fabrication of tissue scaffolds with intricate architecture, porosity and pore size for desired tissue properties presents a challenge in tissue engineering.
Bradburyq, T. +4 more
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