Browsing Issue 3 by Title
Now showing items 13-32 of 46
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Fast Continuous Collision Detection between Rigid Bodies
(Blackwell Publishers, Inc and the Eurographics Association, 2002)This paper introduces a fast continuous collision detection technique for polyhedral rigid bodies. As opposed to most collision detection techniques, the computation of the first contact time between two objects is inherently ... -
Flattening 3D objects using silhouettes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)An important research area in non-photorealistic rendering is the obtention of silhouettes. There are many methods to do this using 3D models and raster structures, but these are limited in their ability to create stylised ... -
Free-form sketching with variational implicit surfaces
(Blackwell Publishers, Inc and the Eurographics Association, 2002)With the advent of sketch-based methods for shape construction, there's a new degree of power available in the rapid creation of approximate shapes. Sketch [Zeleznik, 1996] showed how a gesture-based modeler could be used ... -
A Frequency-Domain Approach to Watermarking 3D Shapes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)This paper presents a robust watermarking algorithm with informed detection for 3D polygonal meshes. The algorithm is based on our previous algorithm [22] that employs mesh-spectral analysis to modify mesh shapes in their ... -
Geometric Approximations Towards Free Specular Comic Shading
(Blackwell Publishers, Inc and the Eurographics Association, 2002)We extend the standard solution to comic rendering with a comic-style specular component. To minimise the computational overhead associated with this extension, we introduce two optimising approximations; the perspective ... -
Geometric Snakes for Triangular Meshes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Feature detection is important in various mesh processing techniques, such as mesh editing, mesh morphing, mesh compression, and mesh signal processing. In spite of much research in computer vision, automatic feature ... -
Grid Based Final Gather for Radiosity on Complex Clustered Scenes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Radiosity methods handle large scenes and complex objects using clustering techniques. To reconstruct a high quality image, usually a second very time consuming final gather pass is applied which exactly recomputes the ... -
Hardware Accelerated Interactive Vector Field Visualization: A level of detail approach
(Blackwell Publishers, Inc and the Eurographics Association, 2002)This paper presents an interactive global visualization technique for dense vector fields using levels of detail. We introduce a novel scheme which combines an error-controlled hierarchical approach and hardware acceleration ... -
Hardware-Based Volumetric Knit-Wear
(Blackwell Publishers, Inc and the Eurographics Association, 2002)We present a hardware-based, volumetric approach for rendering knit wear at very interactive rates. A single stitch is represented by a volumetric texture with each voxel storing the main direction of the strands of yarn ... -
Hybrid Geometric - Image Based Rendering
(Blackwell Publishers, Inc and the Eurographics Association, 2002)We present a Hybrid Geometric-Image Based Rendering (HGIBR) system for displaying very complex geometrical models at interactive frame rates. Our approach replaces distant geometry with a combination of image-based ... -
Image-Swept Volumes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Many graphical objects can be represented by swept volumes (including its subset - generalised cylinders) by sweeping 2D or 3D templates along 3D trajectories. In this paper, we present a new approach for constructing swept ... -
Improved Scene Reconstruction from Range Images
(Blackwell Publishers, Inc and the Eurographics Association, 2002)The modeling of real scenes is a complex and challenging task for which the use of laser rangefinders is one of the most promising approaches. Unfortunately, in many situations, it is not possible or practical to guarantee ... -
Interactive Visualization with Programmable Graphics Hardware
(Blackwell Publishers, Inc and the Eurographics Association, 2002)One of the main scientific goals of visualization is the development of algorithms and appropriate data models which facilitate interactive visual analysis and direct manipulation of the increasingly large data sets which ... -
Intrinsic Parameterizations of Surface Meshes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Parameterization of discrete surfaces is a fundamental and widely-used operation in graphics, required, for instance, for texture mapping or remeshing. As 3D data becomes more and more detailed, there is an increased need ... -
Local Physical Models for Interactive Character Animation
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Our goal is to design and build a tool for the creation of expressive character animation. Virtual puppetry, also known as performance animation, is a technique in which the user interactively controls a character's motion. ... -
Metamorphosis of Polyhedral Surfaces using Decomposition
(Blackwell Publishers, Inc and the Eurographics Association, 2002)This paper describes an algorithm for morphing polyhedral surfaces based on their decompositions into patches. The given surfaces need neither be genus-zero nor two-manifolds. We present a new algorithm for decomposing ... -
Modeling Surperspective Projection of Landscapes for Geographical Guide-Map Generation
(Blackwell Science Ltd and the Eurographics Association, 2002)It is still challenging to generate hand-drawn pictures because they differ from ordinary photographs in that they are often drawn as seen from multiple viewpoints. This paper presents a new approach for modeling such ... -
Multi-Resolution Rendering of Complex Animated Scenes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)We present a novel multi-resolution point sample rendering algorithm for keyframe animations. The algorithm accepts triangle meshes of arbitrary topology as input which are animated by specifying different sets of vertices ... -
Object Space EWA Surface Splatting: A Hardware Accelerated Approach to High Quality Point Rendering
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Elliptical weighted average (EWA) surface splatting is a technique for high quality rendering of point-sampled 3D objects. EWA surface splatting renders water-tight surfaces of complex point models with high quality, ... -
Projective Texture Mapping with Full Panorama
(Blackwell Publishers, Inc and the Eurographics Association, 2002)Projective texture mapping is used to project a texture map onto scene geometry. It has been used in many applications, since it eliminates the assignment of fixed texture coordinates and provides a good method of representing ...