Browsing by Title
Now showing items 12155-12174 of 17315
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Rate-distortion Optimized Compression of Motion Capture Data
(The Eurographics Association and John Wiley and Sons Ltd., 2014)Lossy compression of motion capture data can alleviate the problems of efficient storage and transmission by exploiting the redundancy and the superfluous precision of the data. When considering the acceptable amount of ... -
Rational Bézier Guarding
(The Eurographics Association and John Wiley & Sons Ltd., 2022)We present a reliable method to generate planar meshes of nonlinear rational triangular elements. The elements are guaranteed to be valid, i.e. defined by injective rational functions. The mesh is guaranteed to conform ... -
Rational Bi-cubic G2 Splines for Design with Basic Shapes
(The Eurographics Association and Blackwell Publishing Ltd., 2011)The paper develops a rational bi-cubic G<sup>2</sup> (curvature continuous) analogue of the non-uniform polynomial C<sup>2</sup> cubic B-spline paradigm. These rational splines can exactly reproduce ... -
A rational model of the surface swept by a curve*
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper shows how to construct a rational Bezier model of a swept surface that interpolates N frames (i.e., N position/orientation pairs) of a fixed rational space curve c(s) and maintains the shape of the curve at all ... -
Rational Zoom of Bit Maps Using B-Spline Interpdation in Computerized 2-D Animation
(Blackwell Publishing Ltd and the Eurographics Association, 1990)This paper describes the application of B-spline interpolation to the problem of rational transformation in computerized 2-D animation. The technique described herewith can also be applied to the resolution independence ... -
Rationale Visualization for Safety and Security
(The Eurographics Association and John Wiley & Sons Ltd., 2015)In safety and security domains where objects of interest (OOI), such as people, vessels, or transactions, are continuously monitored, automated reasoning is required due to their sheer number and volume of information. We ... -
Rationalization of Triangle-Based Point-Folding Structures
(The Eurographics Association and John Wiley and Sons Ltd., 2012)In mechanical engineering and architecture, structural elements with low material consumption and high loadbearing capabilities are essential for light-weight and even self-supporting constructions. This paper deals with ... -
Rato versus joystick como dispositivo de entrada para navegação num ambiente virtual com um Head-Mounted Device
(The Eurographics Association, 2021)Este artigo apresenta uma experiência controlada realizada para comparar dois dispositivos comuns, um rato e um joystick, como dispositivos de entrada durante a navegação num Ambiente Virtual constituído por um labirinto ... -
Raw Point Cloud Deferred Shading Through Screen Space Pyramidal Operators
(The Eurographics Association, 2018)We present a novel real-time raw point cloud rendering algorithm based on efficient screen-space pyramidal operators. Our method is based on a pyramidal occlusion-based hidden point removal operator followed by a pyramidal ... -
Ray Accelerator: Efficient and Flexible Ray Tracing on a Heterogeneous Architecture
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)We present a hybrid ray tracing system, where the work is divided between the CPU cores and the GPU in an integrated chip, and communication occurs via shared memory. Rays are organized in large packets that can be distributed ... -
Ray Casting Algebraic Surfaces using the Frustum Form
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We propose an algorithm for interactive ray-casting of algebraic surfaces of high degree. A key point of our approach is a polynomial form adapted to the view frustum. This so called frustum form yields simple expressions ... -
Ray Casting Curved-Quadratic Elements
(The Eurographics Association, 2004)We present a method for ray casting curved-quadratic elements in 3D. The advantages of this approach is that a curved element can be directly visualized. Conventionally, higher-order elements are tessellated with several ... -
Ray Classification for Accelerated BVH Traversal
(The Eurographics Association and John Wiley & Sons Ltd., 2019)For ray tracing based methods, traversing a hierarchical acceleration data structure takes up a substantial portion of the total rendering time. We propose an additional data structure which cuts off large parts of the ... -
Ray Coherence Between a Sphere and a Convex Polyhedron
(Blackwell Science Ltd and the Eurographics Association, 1992)Using the two ray coherence theorems of Ohta and Maekawa the computation time of ray tracing algorithms for scenes of spheres and convex polyhedra can be reduced considerably. This paper presents further theorems which, ... -
Ray Differentials and Multiresolution Geometry Caching for Distribution Ray Tracing in Complex Scenes
(Blackwell Publishers, Inc and the Eurographics Association, 2003)When rendering only directly visible objects, ray tracing a few levels of specular reflection from large, low-curvaturesurfaces, and ray tracing shadows from point-like light sources, the accessed geometry is coherentand ... -
The Ray Engine
(The Eurographics Association, 2002)Assisted by recent advances in programmable graphics hardware, fast rasterization-based techniques have made significant progress in photorealistic rendering, but still only render a subset of the effects possible with ray ... -
Ray Maps for Global Illumination
(The Eurographics Association, 2005)We describe a novel data structure for representing light transport called ray map. The ray map extends the concept of photon maps: it stores not only photon impacts but the whole photon paths. We demonstrate the utility ... -
Ray Reordering Techniques for GPU Ray-Cast Ambient Occlusion
(The Eurographics Association, 2020)Global illumination techniques, such as ambient occlusion, can be performed in a physically accurate way via ray casting. However ambient occlusion rays are incoherent. This means their computation is divergent causing a ... -
Ray Specialized Contraction on Bounding Volume Hierarchies
(The Eurographics Association and John Wiley & Sons Ltd., 2015)In this paper we propose a simple but effective method to modify a BVH based on ray distribution for improved ray tracing performance. Our method starts with an initial BVH generated by any state-of-the-art offline algorithm. ... -
Ray Tracing an Octree: Numerical Evaluation of the First Intersection
(Blackwell Science Ltd and the Eurographics Association, 1993)