Sciweavers

140 search results - page 6 / 28
» Computation of the degree of rational maps between curves
Sort
View
ICIP
2005
IEEE
14 years 9 months ago
A dynamic Bezier curve model
Bezier curves (BC) are fundamental to a wide range of applications from computer-aided design through to object shape descriptions and surface mapping. Since BC only consider glob...
Ferdous Ahmed Sohel, Laurence S. Dooley, Gour C. K...
IJCV
1998
153views more  IJCV 1998»
13 years 7 months ago
Rational Filters for Passive Depth from Defocus
A fundamental problem in depth from defocus is the measurement of relative defocus between images. The performance of previously proposed focus operators are inevitably sensitive t...
Masahiro Watanabe, Shree K. Nayar
SAC
2010
ACM
14 years 2 months ago
Constraint-based LN-curves
We consider the design of parametric curves from geometric constraints such as distance from lines or points and tangency to lines or circles. We solve the Hermite problem with su...
Young Joon Ahn, Christoph M. Hoffmann
EUROGRAPHICS
2010
Eurographics
14 years 4 months ago
Sketching Clothoid Splines Using Shortest Paths
Clothoid splines are gaining popularity as a curve representation due to their intrinsically pleasing curvature, which varies piecewise linearly over arc length. However, construc...
Ilya Baran, Jaakko Lehtinen, Jovan Popovic
VISSYM
2003
13 years 8 months ago
Contouring Curved Quadratic Elements
We show how to extract a contour line (or isosurface) from quadratic elements—specifically from quadratic triangles and tetrahedra. We also devise how to transform the resultin...
David F. Wiley, Henry R. Childs, Benjamin F. Grego...