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Calibration of Audio-Video Sensors for Multi-Modal Event Indexing

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Authors
Kϋhnapfel, Thorsten
Tan, Tele
Venkatesh, Svetha
Date
2007
Type
Conference Paper

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Citation
Kϋhnapfel, T. and Tan, T. and Venkatesh, S. and Lehmann, E. 2007. Calibration of Audio-Video Sensors for Multi-Modal Event Indexing, in Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, Apr 15-20 2007, pp. II-741-II-744. Hawaii, USA: IEEE Computer Society Conference Publishing Services.
Source Title
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007.
Source Conference
2007 IEEE International Conference on Acoustics, Speech and Signal Processing
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Department of Computing
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Abstract

This paper addresses the coordinated use of video and audio cues to capture and index surveillance events with multimodal labels. The focus of this paper is the development of a joint-sensor calibration technique that uses audio-visual observations to improve the calibration process. One significant feature of this approach is the ability to continuously check and update the calibration status of the sensor suite, making it resilient to independent drift in the individual sensors. We present scenarios in which this system is used to enhance surveillance.