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COMPGEOM
2010
ACM
15 years 2 months ago
Adding one edge to planar graphs makes crossing number hard
A graph is near-planar if it can be obtained from a planar graph by adding an edge. We show that it is NP-hard to compute the crossing number of near-planar graphs. The main idea ...
Sergio Cabello, Bojan Mohar
ICIP
2009
IEEE
14 years 7 months ago
Optical flow and depth from motion for omnidirectional images using a TV-L1 variational framework on graphs
This paper deals with the problem of efficiently computing the optical flow of image sequences acquired by omnidirectional (nearly full field of view) cameras. We formulate the pr...
Luigi Bagnato, Pascal Frossard, Pierre Vandergheyn...
TVCG
2012
179views Hardware» more  TVCG 2012»
13 years 6 days ago
Parallel Computation of 2D Morse-Smale Complexes
—The Morse-Smale complex is a useful topological data structure for the analysis and visualization of scalar data. This paper describes an algorithm that processes all mesh eleme...
Nithin Shivashankar, Senthilnathan M, Vijay Natara...
DAC
2000
ACM
15 years 10 months ago
Large-scale capacitance calculation
We describe a new method for accurate large-scale capacitance calculations. The algorithm uses an integral equation formulation, but with a new representation for charge distribut...
Sharad Kapur, David E. Long
COMPGEOM
2010
ACM
15 years 2 months ago
A kinetic triangulation scheme for moving points in the plane
We present a simple randomized scheme for triangulating a set P of n points in the plane, and construct a kinetic data structure which maintains the triangulation as the points of...
Haim Kaplan, Natan Rubin, Micha Sharir