Blind audiovisual separation based on redundant representations

Anna Llagostera Casanovas, Gianluca Monaci, Pierre Vandergheynst, Remi Gribonval
2008 Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing  
In this work we present a method to perform a complete audiovisual source separation without need of previous information. This method is based on the assumption that sounds are caused by moving structures. Thus, an efficient representation of audio and video sequences allows to build relationships between synchronous structures on both modalities. A robust clustering algorithm groups video structures exhibiting strong correlations with the audio so that sources are counted and located in the
more » ... age. Using such information and exploiting audio-video correlation, the audio sources activity is determined. Next, spectral Gaussian Mixture Models (GMMs) are learnt in time slots with only one source active so that it is possible to separate them in case of an audio mixture. Audio source separation performances are rigorously evaluated, clearly showing that the proposed algorithm performs efficiently and robustly.
doi:10.1109/icassp.2008.4517991 dblp:conf/icassp/CasanovasMVG08 fatcat:4ezhfgn54rdqxpgtb6dtg5ov5e