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ICASSP
2009
IEEE
15 years 4 months ago
Plane-wave decomposition of a sound scene using a cylindrical microphone array
The analysis for microphone arrays formed by mounting microphones on a sound-hard spherical or cylindrical baf e is typically performed using a decomposition of the sound field i...
Dmitry N. Zotkin, Ramani Duraiswami
AVSS
2008
IEEE
15 years 4 months ago
Object and Scene-Centric Activity Detection Using State Occupancy Duration Modeling
We propose a video event analysis framework based on object segmentation and tracking, combined with a Hidden Semi-Markov Model (HSMM) that uses state occupancy duration modeling....
Murtaza Taj, Andrea Cavallaro
ICASSP
2011
IEEE
14 years 1 months ago
Abnormal motion detection in crowded scenes using local spatio-temporal analysis
We present a motion classification approach to detect movements of interest (abnormal motion) based on local feature modeling within spatio-temporal detectors. The modeling is pe...
Fahad Daniyal, Andrea Cavallaro
SPIEVIP
2010
15 years 5 days ago
Automatic scene activity modeling for improving object classification
In video surveillance, automatic methods for scene understanding and activity modeling can exploit the high redundancy of object trajectories observed over a long period of time. ...
Samuel Foucher, Marc Lalonde, Langis Gagnon
CVPR
2012
IEEE
13 years 6 days ago
Recovering free space of indoor scenes from a single image
In this paper we consider the problem of recovering the free space of an indoor scene from its single image. We show that exploiting the box like geometric structure of furniture ...
Varsha Hedau, Derek Hoiem, David A. Forsyth