256 search results - page 2 / 52 » Camera Calibration from Two Shadow Trajectories |
ECCV
2008
Springer
14 years 9 months ago
2008
Springer
Using only shadow trajectories of stationary objects in a scene, we demonstrate that using a set of six or more photographs are sufficient to accurately calibrate the camera. Moreo...
ICPR
2008
IEEE
14 years 2 months ago
2008
IEEE
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...
CVIU
2007
13 years 7 months ago
2007
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...
CVPR
2010
IEEE
14 years 4 months ago
2010
IEEE
We explore the use of clouds as a form of structured lighting to capture the 3D structure of outdoor scenes observed over time from a static camera. We derive two cues that relate ...
ICRA
2009
IEEE
14 years 2 months ago
2009
IEEE
— Computer vision researchers have proved the feasibility of camera self-calibration —the estimation of a camera’s internal parameters from an image sequence without any know...