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CORR
2008
Springer
81views Education» more  CORR 2008»
13 years 9 months ago
Capacity Bounds for Peak-Constrained Multiantenna Wideband Channels
Bounds are derived on the noncoherent capacity of a very general class of multiple-input multiple-output fading channels that are selective in time and frequency as well as correla...
Ulrich G. Schuster, Giuseppe Durisi, Helmut Bö...
CIVR
2008
Springer
207views Image Analysis» more  CIVR 2008»
13 years 10 months ago
Accumulated motion energy fields estimation and representation for semantic event detection
In this paper, a motion-based approach for detecting highlevel semantic events in video sequences is presented. Its main characteristic is its generic nature, i.e. it can be direc...
Georgios Th. Papadopoulos, Vasileios Mezaris, Ioan...
CVPR
2011
IEEE
13 years 5 months ago
Extracting and Locating Temporal Motifs in Video Scenes Using a Hierarchical Non Parametric Bayesian Model
In this paper, we present an unsupervised method for mining activities in videos. From unlabeled video sequences of a scene, our method can automatically recover what are the recu...
Ré, mi Emonet, Jagannadan Varadarajan, Jean-Marc ...
CVPR
2010
IEEE
14 years 5 months ago
Learning a Hierarchy of Discriminative Space-Time Neighborhood Features for Human Action Recognition
Recent work shows how to use local spatio-temporal features to learn models of realistic human actions from video. However, existing methods typically rely on a predefined spatial...
Adriana Kovashka, Kristen Grauman
PADS
2004
ACM
14 years 2 months ago
Exploiting Symmetry for Partitioning Models in Parallel Discrete Event Simulation
We investigated the benefit of exploiting the symmetries of graphs for partitioning. We represent the model to be simulated by a weighted graph. Graph symmetries are studied in th...
Jan Lemeire, Bart Smets, Philippe Cara, Erik F. Di...