Automatic Time Skew Detection and Correction
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.
- Related documents: http://publications.idiap.ch/index.php/publications/showcite/Korchagin_Idiap-RR-42-2010
Record created on 2011-02-07, modified on 2016-08-09