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CVPR
2009
IEEE
17 years 1 months ago
Monitoring, Recognizing and Discovering Social Networks
This work addresses the important problem of the discovery and analysis of social networks from surveillance video. A computer vision approach to this problem is made possible b...
Ting Yu, Ser Nam Lim, Kedar A. Patwardhan, Nils Kr...
ICCV
2007
IEEE
16 years 8 months ago
Out-of-Core Bundle Adjustment for Large-Scale 3D Reconstruction
Large-scale 3D reconstruction has recently received much attention from the computer vision community. Bundle adjustment is a key component of 3D reconstruction problems. However,...
Kai Ni, Drew Steedly, Frank Dellaert
ICCV
2007
IEEE
16 years 8 months ago
Globally Optimal Affine and Metric Upgrades in Stratified Autocalibration
We present a practical, stratified autocalibration algorithm with theoretical guarantees of global optimality. Given a projective reconstruction, the first stage of the algorithm ...
Manmohan Krishna Chandraker, Sameer Agarwal, David...
CHI
2008
ACM
16 years 7 months ago
Understanding geocaching practices and motivations
Geocaching is a location-based activity that has been practiced for a number of years. As a sustained and established activity it represents an important opportunity for understan...
Kenton O'Hara
CHI
2008
ACM
16 years 7 months ago
Don't look now, but we've created a bureaucracy: the nature and roles of policies and rules in wikipedia
Wikis are sites that support the development of emergent, collective infrastructures that are highly flexible and open, suggesting that the systems that use them will be egalitari...
Brian S. Butler, Elisabeth Joyce, Jacqueline Pike