229 search results - page 18 / 46 » On the Number of Arrangements of Pseudolines |
COMBINATORICS
1998
13 years 7 months ago
1998
The number of noncrossing partitions of {1, 2, . . . , n} with fixed block sizes has a simple closed form, given by Kreweras, and coincides with the corresponding number for nonne...
FLAIRS
2000
13 years 9 months ago
2000
We first revisit a problem in the literature of genetic algorithms: arranging numbers into groups whose summed weights are as nearly equal as possible. We provide a new genetic al...
CVPR
2004
IEEE
14 years 9 months ago
2004
IEEE
Object detection in unconstrained images is an important image understanding problem with many potential applications. There has been little success in creating a single algorithm...
CVPR
2008
IEEE
14 years 9 months ago
2008
IEEE
We present a theoretical analysis for characterizing the shadows cast by a point light source given its relative position to the camera. In particular, we analyze the epipolar geo...
ICCV
1999
IEEE
14 years 9 months ago
1999
IEEE
The notion of a virtual sensor for optimal 3D reconstruction is introduced. Instead of planar perspective images that collect many rays at a fixed viewpoint, omnivergent cameras c...