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» Camera Calibration from Two Shadow Trajectories
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AVSS
2007
IEEE
14 years 3 months ago
Single camera calibration for trajectory-based behavior analysis
Perspective deformations on the image plane make the analysis of object behaviors difficult in surveillance video. In this paper, we improve the results of trajectory-based scene...
Nadeem Anjum, Andrea Cavallaro
ICIAR
2004
Springer
14 years 2 months ago
Camera Calibration Using Two Concentric Circles
We present a simple calibration method for computing the extrinsic parameters (pose) and intrinsic parameters (focal length and principal point) of a camera by imaging a pattern of...
Francisco Abad, Emilio Camahort, Roberto Viv&oacut...
ECCV
2006
Springer
14 years 11 months ago
Shape-from-Silhouette with Two Mirrors and an Uncalibrated Camera
Two planar mirrors are positioned to show five views of an object, and snapshots are captured from different viewpoints. We present closed form solutions for calculating the focal ...
Keith Forbes, Fred Nicolls, Gerhard de Jager, Anth...
ICCV
2009
IEEE
1265views Computer Vision» more  ICCV 2009»
15 years 1 months ago
Reconstructing 3D motion trajectories of particle swarms by global correspondence selection
This paper addresses the problem of reconstructing the 3D motion trajectories of particle swarms using two temporally synchronized and geometrically calibrated cameras. The 3D traj...
Danping Zou, Qi Zhao, Hai Shan Wu, Yan Qiu Chen
PAMI
2008
132views more  PAMI 2008»
13 years 9 months ago
Trajectory Association across Multiple Airborne Cameras
A camera mounted on an aerial vehicle provides an excellent means to monitor large areas of a scene. Utilizing several such cameras on different aerial vehicles allows further flex...
Yaser Sheikh, Mubarak Shah