NDLI: Audiovisual event detection towards scene understanding

Content Provider	IEEE Xplore Digital Library
Author	Canton-Ferrer, C. Butko, T. Segura, C. Giro, X. Nadeu, C. Hernando, J. Casas, J.R.
Copyright Year	2009
Description	Author affiliation: Tech. Univ. of Catalonia, Barcelona, Spain (Canton-Ferrer, C.; Butko, T.; Segura, C.; Giro, X.; Nadeu, C.; Hernando, J.; Casas, J.R.)
Abstract	Acoustic events produced in meeting environments may contain useful information for perceptually aware interfaces and multimodal behavior analysis. In this paper, a system to detect and recognize these events from a multimodal perspective is presented combining information from multiple cameras and microphones. First, spectral and temporal features are extracted from a single audio channel and spatial localization is achieved by exploiting cross-correlation among microphone arrays. Second, several video cues obtained from multiperson tracking, motion analysis, face recognition, and object detection provide the visual counterpart of the acoustic events to be detected. A multimodal data fusion at score level is carried out using two approaches: weighted mean average and fuzzy integral. Finally, a multimodal database containing a rich variety of acoustic events has been recorded including manual annotations of the data. A set of metrics allow assessing the performance of the presented algorithms. This dataset is made publicly available for research purposes.
Starting Page	81
Ending Page	88
File Size	556430
Page Count	8
File Format	PDF
ISBN	9781424439942
ISSN	21607508
DOI	10.1109/CVPRW.2009.5204264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Event detection Tracking Layout Object detection Cameras Feature extraction Acoustic signal detection Microphone arrays Data mining Information analysis
Content Type	Text
Resource Type	Article

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