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Line Clipping Using Semi-Homogeneous Coordinates
(Blackwell Science Ltd and the Eurographics Association, 1995)
The dual intersection test is described. It is a new method for deciding whether a line intersects a window. The concept of semi-homogeneous coordinates is introduced. It allows us to define line segments in projective ...
Image Warping Using Few Anchor Points and Radial Functions
(Blackwell Science Ltd and the Eurographics Association, 1995)
Transformations based on radial basis junctions have proven to be a powerful tool in image warping. In the present work we decompose these transformations into linear and radial terms, and show examples where such a ...
Efficient Parallel Gouraud Shading and Linear Interpolation over Triangles
(Blackwell Science Ltd and the Eurographics Association, 1995)
A parallel raster algorithm to draw Gouraud shaded triangles is presented. At the heart of the algorithm is a new constrained parallel edge-traversal technique. This parallel traversal represents an increased level of ...
Symbolic and Numeric Computation in Curve Interrogation
(Blackwell Science Ltd and the Eurographics Association, 1995)
The control of shape of curves is of great importance in computer aided geometric design. Determination of planar curves convexity, the detection of infection points, coincident regions, and self intersection points, the ...
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 ...
An Algorithm for Perspective Viewing of Objects Represented by Octrees
(Blackwell Science Ltd and the Eurographics Association, 1995)
A new algorithm is presented for viewing three-dimensional objects, represented by an octree, from an arbitrary location. The algorithm generates aperspective view of the objects while eliminating hidden surfaces. The ...
A New Method of Image Mosaicking and Its Application to Cultural Heritage Representation
(Blackwell Publishers Ltd and the Eurographics Association, 1999)
This paper presents an original two-step procedure for estimating projective transformations between pairs of images: first, the transformation between the images is approximated as an affine transformation; second, this ...
An Efficient Algorithm for Line Clipping by Convex and Non-convex Polyhedra in E3
(Blackwell Science Ltd and the Eurographics Association, 1996)
A new algorithm for clipping lines against convex polyhedron with O(N) complexity is given with modification for non-convex polyhedron. The suggested algorithm is faster for higher number of facets of the given polyhedron ...
Workshop Report Future Developments in Computer Graphics Teaching Eurographics Workshop - University of Leeds - Easter 1989
(Blackwell Publishing Ltd and the Eurographics Association, 1990)
Active Storytelling
(Blackwell Publishers Ltd and the Eurographics Association, 1999)