Browsing Volume 16 (1997) by Issue Date
Now showing items 1-20 of 101
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Orthogonal Decomposition of Non-Uniform Bspline Spaces using Wavelets
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We take advantage of ideas of an orthogonal wavelet complement to produce multiresolution orthogonal decomposition of nonuniform Bspline (NUB) spaces. The editing of NUB curves and surfaces can be handled at different ... -
Trends and Developments in Computational Geometry
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper discusses some trends and achievements in computational geometry during the past five years, with emphasis on problems related to computer graphics. Furthermore, a direction of research in computational geometry ... -
Bulge Elimination in Convolution Surfaces
(Blackwell Publishers Ltd and the Eurographics Association, 1997)The relationship between surface bulge and several implicit blend techniques, particularly those based on convolution of a skeleton, is discussed. An examination of branching skeletons reveals that for two and three-dimensional ... -
Multiple Segment Line Scan-conversion
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We present a new method for scan-converting a straight line. A scan-converted straight line may contain many pixel segments of identical shapes. Therefore, instead of scan-converting the whole line step by step, we can ... -
A Survey of 3D Interaction Techniques
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Recent gains in the performance of 3D graphics hardware and rendering systems have not been matched by a corresponding improvement in our knowledge of how to interact with the virtual environments we create; therefore there ... -
The Open Inventor Toolkit and the PREMO Standard
(Blackwell Publishers Ltd and the Eurographics Association, 1997)PREMO is an emerging international standard for the presentations of multimedia objects including computer graphics. Open InventorT is a commercially available "de facto" standard for interactive computer graphics packaged ... -
Surface Reconstruction Using Alpha Shapes
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We describe a method for reconstructing an unknown surface from a set of data points. The basic approach is to extract the surface as a polygon mesh from an ?-shape. Even though alpha shapes are generalized polytopes having ... -
From Footprints to Animation
(Blackwell Publishers Ltd and the Eurographics Association, 1997)A method of using footprints as a basis for generating animated locomotion is proposed. An optimization process is used to maximize the physical plausibility and perceived comfort of a motion which is constrained to match ... -
Modeling and Rendering of the Atmosphere Using Mie-Scattering
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper presents a method for rendering of the atmosphere by means of Mie-scattering. The method is based on a concentric atmospheric model, which is divided into four submodels: for clear air, aerosol, ozone, and rain. ... -
Interactive Sculpting with Deformable Nonuniform B-splines
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper describes an efficient method for manipulating deformable B-spline surfaces, based on minimizing an energy functional. The major benefit of the proposed new fairness norm is that it preserves the natural ... -
A Million Polygons, a Million Pixels: Which is Heavier?
(Blackwell Publishers Ltd and the Eurographics Association, 1997)The impressive progress of rendering software and hardware over the last two decades often leads to the - too rapid - conclusion that high-quality 3D imagery can now be incorporated in all sorts of applications. Interestingly, ... -
Interactive Visualization of Implicit Surfaces with Singularities
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper presents work on two methods for interactive visualization of implicit surfaces: physically-based sampling using particle systems and polygonization followed by physically-based mesh improvement which explicitly ... -
Skeletal Reconstruction of Branching Shapes
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We present a new method to reconstruct an implicit representation of a branching object from a set of data points scattered on its surface. The method is based on the computation of a geometric skeleton inside the data ... -
Interactive Boundary Computation of Boolean Combinations of Sculptured Solids
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We present algorithms and systems for interactive boundary computation of Boolean combinations of sculptured solids. The algorithm is applicable to all spline solids and computes an accurate boundary representation. To ... -
Interactive Rendering of Deforming NURBS Surfaces
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Non-uniform rational B-splines (NURBS) has been widely accepted as a standard tool for geometry representation and design. Its rich geometric properties allow it to represent both analytic shapes and free-form curves and ... -
Polyhedral Surface Modeling with a Diffusion System
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper presents a method of generating polyhedral surfaces by using a diffusion system that calculates the positional and normal vectors on their vertices. The system generates smooth shapes that satisfy the minimum ... -
Animation by Deformation of Space-Time Objects
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This article presents the properties of animation with space-time objects. A space-time object means here a geometrical object embedded in R4 with a volumic topology. Resulting animations are obtained by deforming space-time ... -
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 ... -
Book Reviews
(Blackwell Publishers Ltd and the Eurographics Association, 1997) -
Editorial
(Blackwell Publishers Ltd and the Eurographics Association, 1997)