85 search results - page 3 / 17 » Using Points at Infinity for Parameter Decoupling in Camera ... |
BMVC
2000
13 years 7 months ago
2000
Inspired by Zhang's work, a new easy technique for calibrating a camera based on circular points is proposed. The proposed technique only requires the camera to observe a new...
CVPR
2010
IEEE
2010
IEEE
Simultaneous surveillance camera calibration and foot-head homology estimation from human detections
13 years 12 months ago
We propose a novel method for automatic camera calibration and foot-head homology estimation by observing persons standing at several positions in the camera field of view. We de...
IVC
2006
13 years 6 months ago
2006
When space points and camera optical center lie on a twisted cubic, no matter how many pairs there are used from the space points to their image points, camera parameters cannot b...
ICPR
2002
IEEE
13 years 11 months ago
2002
IEEE
Analysis of human activity from a video camera is simplified by the knowledge of the camera’s intrinsic and extrinsic parameters. We describe a technique to estimate such param...
ICPR
2006
IEEE
14 years 7 months ago
2006
IEEE
We introduce an efficient method for recovering the camera parameters automatically from the cast shadows of two 3D points observed over time. Compared to previous related work, o...