Volume 4 Number 5 (Oct. 2012)
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IJCEE 2012 Vol.4(5): 684-687 ISSN: 1793-8163 DOI: 10.7763/IJCEE.2012.V4.584

Automatic Time Skew Detection and Correction

Danil Korchagin
Abstract—In this paper, we propose a new approach for the automatic time skew detection and correction for multisource audiovisual data, recorded by different cameras/recorders during the same event. All recorded data are successfully tested for potential time skew problem and corrected based on ASR-related features. The core of the algorithm is based on perceptual time-quefrency analysis with a precision of 10 ms. The results show correct time skew detection and elimination in 100% of cases for a real life dataset of 32 broken sessions and surpass the performance of fast cross correlation while keeping lower system requirements.

Index Terms—Time-quefrency analysis, time synchronisation, pattern matching.

Danil Korchagin is with Idiap Research Institute, Martigny, Switzerland (e-mail: Danil.Korchagin@idiap.ch)

Cite: Danil Korchagin, "Automatic Time Skew Detection and Correction," International Journal of Computer and Electrical Engineering vol. 4, no. 5, pp. 684-687, 2012.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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