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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 ...