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IVC
2008
74views more  IVC 2008»
15 years 4 months ago
Log-polar mapping template design: From task-level requirements to geometry parameters
The best parameters defining the geometry of a visual sensor generally depend on the particular visual task the sensor is intended to be used in. However, translating task require...
V. Javier Traver, Filiberto Pla
CVIU
2007
157views more  CVIU 2007»
15 years 4 months ago
Camera calibration and light source orientation from solar shadows
In this paper, we describe a method for recovering camera parameters from perspective views of daylight shadows in a scene, given only minimal geometric information determined fro...
Xiaochun Cao, Hassan Foroosh
CAGD
2005
112views more  CAGD 2005»
15 years 4 months ago
Estimating differential quantities using polynomial fitting of osculating jets
This paper addresses the point-wise estimation of differential properties of a smooth manifold S--a curve in the plane or a surface in 3D--assuming a point cloud sampled over S is...
Frédéric Cazals, Marc Pouget
TOG
2008
127views more  TOG 2008»
15 years 4 months ago
Freeform surfaces from single curved panels
Motivated by applications in architecture and manufacturing, we discuss the problem of covering a freeform surface by single curved panels. This leads to the new concept of semi-d...
Helmut Pottmann, Alexander Schiftner, Pengbo Bo, H...
TOG
2008
134views more  TOG 2008»
15 years 4 months ago
Computing geometry-aware handle and tunnel loops in 3D models
Many applications such as topology repair, model editing, surface parameterization, and feature recognition benefit from computing loops on surfaces that wrap around their `handle...
Tamal K. Dey, Kuiyu Li, Jian Sun, David Cohen-Stei...