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Now showing items 31-40 of 79
Stylizing Silhouettes at Interactive Rates: From Silhouette Edges to Silhouette Strokes
(Blackwell Publishers, Inc and the Eurographics Association, 2002)
A way to create effective stylized line drawings is to draw strokes that start and stop at visible portions along the silhouette of an object to be portrayed. In computer graphics to date, algorithms to extract silhouette ...
Using Perceptual Texture Masking for Efficient Image Synthesis
(Blackwell Publishers, Inc and the Eurographics Association, 2002)
Texture mapping has become indispensable in image synthesis as an inexpensive source of rich visual detail. Less obvious, but just as useful, is its ability to mask image errors due to inaccuracies in geometry or lighting. ...
Texture Particles
(Blackwell Publishers, Inc and the Eurographics Association, 2002)
This paper presents an analytical extension of texture synthesis techniques based on the distribution of elementary texture components. Our approach is similar to the bombing, cellular, macrostructured and lapped textures ...
Sculpturing on Discrete Displacement Fields
(Blackwell Publishers, Inc and the Eurographics Association, 2002)
A displacement field can be defined by a vector field and a height field on an orientable surfaceS, describing the direction and the amount of displacement to be applied toSin order to get a surface represented by the ...
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 ...
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 ...
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 ...
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 ...
Designing 2D Vector Fields of Arbitrary Topology
(Blackwell Publishers, Inc and the Eurographics Association, 2002)
We introduce a scheme of control polygons to design topological skeletons for vector fields of arbitrary topology. Based on this we construct piecewise linear vector fields of exactly the topology specified by the control ...
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 ...