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GRAPHICSINTERFACE
2000
15 years 22 days ago
Using a 3D Puzzle as a Metaphor for Learning Spatial Relations
We introduce a new metaphor for learning spatial relations--the 3D puzzle. With this metaphor users learn spatial relations by assembling a geometric model themselves. For this pu...
Bernhard Preim, Felix Ritter, Oliver Deussen, Thom...
VIS
2007
IEEE
216views Visualization» more  VIS 2007»
16 years 19 days ago
Interactive Isosurface Ray Tracing of Time-Varying Tetrahedral Volumes
Abstract-- We describe a system for interactively rendering isosurfaces of tetrahedral finite-element scalar fields using coherent ray tracing techniques on the CPU. By employing s...
Ingo Wald, Heiko Friedrich, Aaron Knoll, Charle...
ICCV
2001
IEEE
16 years 1 months ago
Car Detection in Low Resolution Aerial Image
In this paper, we present a system to detect passenger cars in aerial images where car appears small. We post the detection as a 3D object recognition problem to account for the v...
Tao Zhao, Ramakant Nevatia
ICPR
2008
IEEE
15 years 5 months ago
Robust trajectory estimation of soccer players by using two cameras
This paper proposes a method to estimate the trajectories of soccer players by using two cameras set in a large-scale outdoor space such as a soccer stadium, which is normally not...
Nozomu Kasuya, Itaru Kitahara, Yoshinari Kameda, Y...
APGV
2008
ACM
141views Visualization» more  APGV 2008»
15 years 1 months ago
The assumed light direction for perceiving shape from shading
Recovering 3D shape from shading is an ill-posed problem that the visual system can solve only by making use of additional information such as the position of the light source. Pr...
James P. O'Shea, Martin S. Banks, Maneesh Agrawala