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MOC
2002
70views more  MOC 2002»
14 years 9 months ago
Positivity preserving finite element approximation
We consider finite element operators defined on "rough" functions in a bounded polyhedron in RN . Insisting on preserving positivity in the approximations, we discover a...
Ricardo H. Nochetto, Lars B. Wahlbin
VMV
2001
117views Visualization» more  VMV 2001»
14 years 11 months ago
Tracking Closed Streamlines in Time Dependent Planar Flows
Closed streamlines are a missing part in most visualizations of vector field topology. In this paper, we propose a method which detects closed streamlines in a time-dependent two-...
Thomas Wischgoll, Gerik Scheuermann, Hans Hagen
ICPR
2008
IEEE
15 years 4 months ago
The projective equation of a circle and its application in camera calibration
In this article, we present the projective equation of a circle in a perspective view, which naturally encodes such important geometric entities as the projected circle center, th...
Yinqiang Zheng, Yuncai Liu
IJCV
2002
111views more  IJCV 2002»
14 years 9 months ago
Linear Multi View Reconstruction and Camera Recovery Using a Reference Plane
This paper presents a linear algorithm for simultaneous computation of 3D points and camera positions from multiple perspective views based on having a reference plane visible in a...
Carsten Rother, Stefan Carlsson
CVPR
2004
IEEE
16 years 4 days ago
A Minimal Solution to the Generalised 3-Point Pose Problem
It is a well known classical result that given the image projections of three known world points it is possible to solve for the pose of a calibrated perspective camera to up to f...
David Nistér