190 search results - page 30 / 38 » Unsupervised estimation for noisy-channel models |
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TIP
2010
14 years 4 months ago
2010
This paper proposes an approach for recognizing human activities (more specifically, pedestrian trajectories) in video sequences, in a surveillance context. A system for automatic ...
CVPR
2008
IEEE
15 years 11 months ago
2008
IEEE
In background subtraction, cast shadows induce silhouette distortions and object fusions hindering performance of high level algorithms in scene monitoring. We introduce a nonpara...
ICCV
2007
IEEE
15 years 11 months ago
2007
IEEE
Path modeling for video surveillance is an active area of research. We address the issue of Euclidean path modeling in a single camera for activity monitoring in a multicamera vid...
MICCAI
2009
Springer
15 years 10 months ago
2009
Springer
We present a novel fuzzy region-based hidden Markov model (frbHMM) for unsupervised partial-volume classification in brain magnetic resonance images (MRIs). The primary contributio...
ECML
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. Clustering has recently enjoyed progress via spectral methods which group data using only pairwise affinities and avoid parametric assumptions. While spectral clustering ...