CVPR
2012
IEEE
12 years 2 months ago
2012
IEEE
We introduce two novel methods to improve the performance of wide area video surveillance applications by using scene features. First, we evaluate the drift in intrinsic and extri...
CVPR
2012
IEEE
12 years 2 months ago
2012
IEEE
This paper is aimed at calibrating the relative posture and position, i.e. extrinsic parameters, of a stationary camera against a 3D reference object which is not directly visible...
ICPR
2002
IEEE
14 years 5 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...
ACCV
2006
Springer
14 years 6 months ago
2006
Springer
Abstract. This paper describes a novel method for estimating extrinsic camera parameters using both feature points on an image sequence and sparse position data acquired by GPS. Ou...
ICRA
2008
IEEE
14 years 6 months ago
2008
IEEE
— This study describes a method of estimating the intrinsic parameters of a perspective camera. In previous calibration methods for perspective cameras, the intrinsic and extrins...
ICPR
2006
IEEE
15 years 1 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...
ICCV
2001
IEEE
15 years 2 months ago
2001
IEEE
This paper deals with the problem of incorporating natural regularity conditions on the motion in an MAP estimator for structure and motion recovery from uncalibrated image sequen...
CVPR
1999
IEEE
15 years 2 months ago
1999
IEEE
A parametric camera model and calibration procedures are developed for an outdoor active camera system with pan, tilt and zoom control. Unlike traditional methods, active camera m...