%Aigaion2 BibTeX export from Idiap Publications %Tuesday 03 December 2024 06:04:29 PM @TECHREPORT{Korchagin_Idiap-RR-40-2009, author = {Korchagin, Danil and Garner, Philip N. and Dines, John}, keywords = {pattern matching, reliability estimation, time synchronisation, time-frequency analysis}, projects = {Idiap, TA2}, month = {12}, title = {Automatic Temporal Alignment of AV Data with Confidence Estimation}, type = {Idiap-RR}, number = {Idiap-RR-40-2009}, year = {2009}, institution = {Idiap}, address = {CH-1920 Martigny, Switzerland}, abstract = {In this paper, we propose a new approach for the automatic audio-based temporal alignment with confidence estimation of audio-visual data, recorded by different cameras, camcorders or mobile phones during social events. All recorded data is temporally aligned based on ASR-related features with a common master track, recorded by a reference camera, and the corresponding confidence of alignment is estimated. The core of the algorithm is based on perceptual time-frequency analysis with a precision of 10 ms. The results show correct alignment in 99\% of cases for a real life dataset and surpass the performance of cross correlation while keeping lower system requirements.}, pdf = {https://publications.idiap.ch/attachments/reports/2009/Korchagin_Idiap-RR-40-2009.pdf} }