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VISSYM
2003
13 years 7 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...
CVPR
2003
IEEE
14 years 8 months ago
A Critical Configuration for Reconstruction from Rectilinear Motion
This paper investigates critical configurations for projective reconstruction from multiple images taken by a camera moving in a straight line. Projective reconstruction refers to...
Richard I. Hartley, Fredrik Kahl
ISSAC
2004
Springer
86views Mathematics» more  ISSAC 2004»
13 years 11 months ago
Maximal quotient rational reconstruction: an almost optimal algorithm for rational reconstruction
Let n/d ∈ Q, m be a positive integer and let u = n/d mod m. Thus u is the image of a rational number modulo m. The rational reconstruction problem is; given u and m find n/d.
Michael B. Monagan
CAD
2010
Springer
13 years 6 months ago
Volumes with piecewise quadratic medial surface transforms: Computation of boundaries and trimmed offsets
MOS surfaces are rational surfaces in R3,1 which provide rational envelopes of the associated two-parameter family of spheres. Moreover, all the offsets admit rational parameteriz...
Bohumír Bastl, Bert Jüttler, Jir&iacut...