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Now showing items 8431-8450 of 17315
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is99
(1999) -
iSBVR: Isosurface-aided Hardware Acceleration Techniques for Slice-Based Volume Rendering
(The Eurographics Association, 2005)In this paper, we examine the performance of the early z-culling feature on current high-end commodity graphics cards and present an isosurface-aided hardware acceleration algorithm for slice-based volume rendering (iSBVR) ... -
ISHair: Importance Sampling for Hair Scattering
(The Eurographics Association and Blackwell Publishing Ltd., 2012)We present an importance sampling method for the bidirectional scattering distribution function (bsdf) of hair. Our method is based on the multi-lobe hair scattering model presented by Sadeghi et al. [SPJT10]. We reduce ... -
Iso Photographic Rendering
(The Eurographics Association, 2018)In the field of computer graphics, the simulation of the visual appearance of materials requires an accurate computation of the light transport equation. Consequently, material models need to take into account various ... -
Iso-charts: Stretch-driven Mesh Parameterization using Spectral Analysis
(The Eurographics Association, 2004)We describe a fully automatic method, called iso-charts, to create texture atlases on arbitrary meshes. It is the first to consider stretch not only when parameterizing charts, but also when forming charts. The output atlas ... -
Iso-geometric Finite Element Analysis Based on Catmull-Clark Subdivision Solids
(2010)We present a volumetric iso-geometric finite element analysis based on Catmull-Clark solids. This concept allows one to use the same representation for the modeling, the physical simulation, and the visualization, which ... -
Isogeometric Analysis for Modelling and Design
(The Eurographics Association, 2015)We present an isogeometric design and analysis approach based on NURBS-compatible subdivision surfaces. The approach enables the description of watertight free-form surfaces of arbitrary degree, including conic sections ... -
IsoMatch: Creating Informative Grid Layouts
(The Eurographics Association and John Wiley & Sons Ltd., 2015)Collections of objects such as images are often presented visually in a grid because it is a compact representation that lends itself well for search and exploration. Most grid layouts are sorted using very basic criteria, ... -
Isometric Piecewise Polynomial Curves
(Blackwell Science Ltd and the Eurographics Association, 1995)The main preoccupations of research in computer-aided geometric design have been on shape-specification techniques for polynomial curves and surfaces, and on the continuity between segments or patches. When modelling with ... -
Isometric Texture Mapping for Free-form Surfaces
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Texture mapping is a frequently exploited technique in computer graphics aimed at the emulation of high-resolution details in surfaces. In this paper we present a distance-ratios preservation method for bivariate raster ... -
Isometry-Aware Preconditioning for Mesh Parameterization
(The Eurographics Association and John Wiley & Sons Ltd., 2017)This paper presents a new preconditioning technique for large-scale geometric optimization problems, inspired by applications in mesh parameterization. Our positive (semi-)definite preconditioner acts on the gradients of ... -
Isometry-invariant Matching of Point Set Surfaces
(The Eurographics Association, 2008)Shape deformations preserving the intrinsic properties of a surface are called isometries. An isometry deforms a surface without tearing or stretching it, and preserves geodesic distances. We present a technique for matching ... -
ISOSLIDER: A System for Interactive Exploration of Isosurfaces
(The Eurographics Association, 2003)We present ISOSLIDER, a system for interactive exploration of isosurfaces of a scalar field. Our algorithm focuses on fast update of isosurfaces for interactive display as a user makes small changes to the isovalue of the ... -
Isosurface Ambient Occlusion and Soft Shadows with Filterable Occlusion Maps
(The Eurographics Association, 2008)Volumetric data sets are often examined by displaying isosurfaces, surfaces where the data or function takes on a given value. We propose a new method for rendering isosurfaces at interactive rates while supporting dynamic ... -
Isosurface Extraction Using Fixed-Sized Buckets
(The Eurographics Association, 2005)We present a simple and output optimal algorithm for accelerated isosurface extraction from volumetric data sets. Output optimal extraction algorithms perform an amount of work dominated by the size of the (output) isosurface ... -
Isosurface Similarity Maps
(The Eurographics Association and Blackwell Publishing Ltd., 2010)In this paper, we introduce the concept of isosurface similarity maps for the visualization of volume data. Isosurface similarity maps present structural information of a volume data set by depicting similarities between ... -
Isosurfaces on Optimal Regular Samples
(The Eurographics Association, 2003)Volumetric samples on Cartesian lattices are less efficient than samples on body-centred cubic (BCC) lattices. We show how to construct isosurfaces on BCC lattices using several different algorithms. Since the mesh that ... -
Isosurfaces Over Simplicial Partitions of Multiresolution Grids
(The Eurographics Association and Blackwell Publishing Ltd, 2010)We provide a simple method that extracts an isosurface that is manifold and intersection-free from a function over an arbitrary octree. Our method samples the function dual to minimal edges, faces, and cells, and we show ... -
Isotopic Approximation of Implicit Curves and Surfaces
(The Eurographics Association, 2004)Implicit surfaces are defined as the zero set of a function F : R<sup>3</sup>-> R. Although several algorithms exist for generating piecewise linear approximations, most of them are based on a user-defined ... -
Isotopic Reconstruction of Surfaces with Boundaries
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present an algorithm for the reconstruction of a surface with boundaries (including a non-orientable one) in three dimensions from a sufficiently dense sample. It is guaranteed that the output is isotopic to the unknown ...