Publications

My publication statistics can be found at https://scholar.google.com/citations?user=JE-Yq84AAAAJ&hl=fr

Thesis

S.O.Ba, Joint Head Tracking and Pose Estimation for Visual Focus of Attention Recognition, Phd Thesis #3764, Ecole Polytechnique Federale de lausanne, Feb. 2007, Supervisor Dr.Jean-Marc Odobez (IDIAP, Martigny, Switzerland)

S.O.Ba, Human tracking and Behavior Recognition with Application to Meeting Analysis, EPFL Thesis proposal, March 2004

Journal Papers

V. Drouard, R. Horaud, A. Deleforge, S. Ba, G. Evangelidis, Robust Head-Pose Estimation Based on Partially-Latent Mixture of Linear Regression, IEEE Transactions on Image Processing, January 2017

I. D. Gebru, S. Ba, X. Li, R. P. Horaud, Audio-Visual Speaker Diarization Based on Spatiotemporal Bayesian Fusion, IEEE Transactions on Pattern Analysis and Machine Intelligence, special issue on Learning with Shared Information for Computer Vision and Multimedia Analysis, December 2016

S. Ba, X. Alameda-Pineda, A. Xompero, R. Horaud, An On-line Variational Bayesian Model for Multi-Person Tracking from Cluttered Scenes, Elsevier Computer Vision and Image understanding, 2016

A. Deleforge, F. Forbes, S. Ba, R. Horaud, Hyper-Spectral Image Analysis with Partially-Latent Regression and Spatial Markov Dependencies, IEEE Journal Of Selected Topics in Signal Processing, 2014

P. Tandeo, B. Chapron, S. Ba, E. Autret, R. Fablet, Segmentation of mesoscale ocean surface dynamics using satellite SST and SSH observations, IEEE Transactions on Geosciences and Remote Sensing, 2013

S.O. Ba, T. Corpetti, B. Chapron, R. Fablet, Interpolation varationnelle de séquences multimodales d'images satellitaires de l'océan, Traitement du Signal, 2012

S.O. Ba, R. Fablet, E. Autret, B. Chapron, Statistical descriptors of ocean regimes from the geometric regularity of Sea Surface Temperature observations, IEEE Geoscience and Remote Sensing Letters, March 2011

S.O. Ba, J.-M. Odobez, Multi-Person Visual Focus of Attention from Head Pose and Meeting Contextual Cues, accepted for publication in the IEEE Trans. on Pattern Analysis and Machine Intelligence, November 2009

S.O. Ba and J.M. Odobez, Recognizing Human Visual Focus of Attention from Head Pose in Meetings, IEEE Trans. on Systems, Man, and Cybernetics, April 2008

J.-M. Odobez, D. Gatica-Perez, S.O.Ba, Utilisation du Mouvement Visuel en Suivi par Filtrage Particulaire, Traitement Du Signal, 2008

K. Smith, S.O. Ba, D. Gatica-Perez, J.M. Odobez, Tracking Attention for Multiple People: Wandering Visual Focus of Attention Estimation, IEEE Trans. on Pattern Analysis and Machine Intelligence, July 2007

J.-M. Odobez, D. Gatica-Perez, S.O.Ba, Embedding Motion in Model-Based Stochastic Tracking, IEEE Trans. on Image Processing, vol 15, no11, Nov 2006

Conference Papers

V. Drouard, S. Ba, R. Horaud, Switching Linear Inverse-Regression Model for Tracking Head Pose, to appear the IEEE Workshop on Applications of Computer Vision, 2017

Y. Ban, S. Ba, X. Alameda-Pineda, R. Horaud, Tracking Multiple Persons Based on a Variational Bayesian Model, 2nd ECCV Workshop on Benchmarking Multi-target Tracking: MOTChallenge 2016

B. Massé, S. O. Ba, R. Horaud, Simultaneous estimation of gaze direction and visual focus of attention for multi-person-to-robot interaction, IEEE International Conference on Multimedia and Expo (ICME), 2016

I.-D. Gebru, S. Ba, G. Evangelidis, R. Horaud, Tracking the active speaker based on a joint audio-visual observation model, ICCV Workshop on 3D Reconstruction and Understanding with Video and Sound, 2015

I.-D. Gebru, S. Ba, G. Evangelidis, R. Horaud, Audio-visual speech-turn detection and tracking, The 12-th International Conference on Latent Variable Analysis and Signal Separation, 2015

V. Drouard, S. Ba, G. Evangelidis, A. Deleforge, R. Horaud, Head pose estimation via probabilistic high-dimensional regression, IEEE International Conference on Image Processing, 2015

P. Tandeo, S. O. Ba, R. Fablet, E. Autret, B. Chapron, Bertrand, Spatio-temporal segmentation and estimation of ocean surface currents from satellite sea surface temperature fields, IEEE - International Conference on Image Processing, 2013

S.O. Ba, B. Chapron, R. Fablet, Multi-resolution data assimilation for missing data interpolation in geophysical sequences, IEEE International Geoscience and Remote Sensing Symposium (IGARSS) , July 2012

E. Autret, S. O. Ba, R. Fablet, B. Chapron, Characterization of ocean dynamics from SSH and SST, ESA/GlobCurrent User Consultation Meeting (conference without proceedings), 2012

S. O. Ba, B. Chapron, R. Fablet, Reconstruction of velocities and SST with the variational method, ESA/GlobCurrent User Consultation Meeting (conference without proceedings), 2012

S. O. Ba, T. Corpetti, R. Fablet, Multi-resolution Missing Data interpolation in SST Image Series, International Conference on Image Processing (ICIP), September 2011

S. O. Ba, T. Corpetti, R. Fablet, Multi-resolution missing data interpolation in SST Image Series, IEEE International Conference on Image processing, 2011

S. Liberge, S. Ba, P. Lenca, R. Fablet, Prévision de Trajectoires de Cyclones à l'Aide de Forêt Aléatoires avec Arbres de Régression, Conférence Internationale Francophone sur l'Extraction et la gestion de Connaissance (EGC), Janvier 2011

El Hadj S. Diop, S. Ba, T. Jerbi, V. Burdin, Variational Shape Prior Level-set Model For image Segmentation, International Conference on Numerical Analysis and Applied Mathematics, September 2010

S. O. Ba and R. Fablet. Variational Fronts Tracking in Sea Surface Temperature Images, IEEE International Conference on Image Processing, September 2010

S. O. Ba, T. Corpetti, B. Chapron, R. Fablet. Variational data assimilation for missing data interpolation in SST images, IEEE International Geoscience and Remote Sensing Symposium, July 2010

S. O. Ba, R. Fablet, D. Pastor, B. Chapron. Descriptors for sea surface temperature front regularity characterization, to appear in the IEEE International Geoscience and Remote Sensing Symposium, July 2010

H. Hung and S.O. Ba, Speech/Non-Speech Detection In Meetings From Automatically Extracted Low Resolution Visual Features, to appear in the International Conference on on Acoustics, Speech, and Signal Processing, March 2010

G. Garau, S.O.Ba, H. Bourlard, J.-M. Odobez, Investigating the use of Visual focus of attention for audio-visual speaker diarization, ACM Conference on Multimedia, Oct. 2009

S.O.Ba, H. hung, and J.-M. Odobez, Visual activity context for focus of attention estimation in dynamic meetings , the International Conference on Multimedia and Expo (ICME), june 2009

H. Hung, D. Jayagopi, S.O. Ba, J-M. Odobez and D. Gatica-Perez,Investigating automatic dominance estimation in groups from visual attention and speaking activity , the International Conference on Multimodal Interfaces (ICMI) 2008

D. Jayagopi, S.O. Ba, J-M. Odobez and D. Gatica-Perez, Predicting two facets of social verticality in meetings from five-minute time slices and nonverbal cues , the International Conference on Multimodal Interfaces (ICMI) 2008, special session on Social Signal Processing

S.O. Ba and J.M. Odobez, Visual Focus of Attention Estimation from Head Pose Posterior Probability Distributions , the International Conference on Multimedia and Expo (ICME), june 2008

S.O. Ba and J.M. Odobez, Multi-party Focus of Attention Recognition in Meetings from Head Pose and Multimodal Contextual Cues , the International Conference on on Acoustics, Speech, and Signal Processing (ICASSP), April 2008

H. Hung, D. Jayagopi, C. Yeo, G. Friedland, S. O. Ba, J.-M. Odobez, K. Ramchandran, N. Mirghafori, D. Gatica-Perez, Using Audio and Video Features to Classify the Most Dominant Person in a Group Meeting , ACM Multimedia, Sept. 2007, July 2007

J.M. Odobez and S.O. Ba, A Cognitive and Unsupervised MAP adaptation Approach to the Recognition of Focus of Attention from Head Pose , the International Conference on Multimedia and Expo (ICME), July 2007

S.O. Ba and J.M. Odobez, A Probabilistic Head Pose Tracking Evaluation in Single and Multiple Camera Setups , Classification of Events, Activities and Relationship (CLEAR) Evaluation and Workshop, May 2007

K. C. Smith, S. O. Ba, D. Gatica-Perez, and J.-M. odobez, Tracking the Multi-Person Wandering Visual Focus of Attention , the International Conference on Multi-modal Interfaces ICMI 06, Banff, Canada, 2-4 Nov 2006

S.O. Ba and J.M Odobez, A Study on Visual Focus of Attention Recognition from Head Pose in a Meeting Room , 3rd Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms (MLMI06), Washington DC, USA, 1-3 May 2006

M. Al-Hames, T. Hain, J. Cernocky, S. Schreiber, M. Poel, R. Muller, S. Marcel, D. van Leeuwen, J. Odobez, S.O.Ba, H. Bourlard, F. Cardinaux, D. Gatica-Perez, A. Janin, P. Motlicek, S. Reiter, S. Renals, J. van Rest, R. Rienks, G. Rigoll, K. Smith, A. Thean, and P. Zemcik, Audio-visual processing in meetings: Seven questions and current AMI answers , 3rd Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms (MLMI06), Washington DC, USA, 1-3 May 2006

S.O. Ba and J.M Odobez, Head pose tracking and focus of attention recognition algorithms in meeting rooms , invited paper at CLEAR'06 Evaluation Campaign and Workshop, Southampton, UK, 6-7 Apr. 2006

S.O. Ba and J.M Odobez, A Rao-Blackwellized Mixed State Particle Filter for Head Pose Tracking in Meetings , ACM ICMI Workshop on Multimodal Multiparty Meeting Processing, Trento Italy Oct. 7, 2005

S.O. Ba and J.M Odobez, Evaluation of Multiple Cues Head Pose Estimation Algorithms in Natural Environments , the International Conference on Multi-media & Expo, Amsterdam, July 6-8, 2005

I. MacCowan, M. Hari Krishna,D Gatica-Perez, D. Moore and S.O. Ba, Speech Acquisition in Meetings with an Audio-Visual Sensor Array , International Conference on Multi-media & Expo (ICME), Amsterdam, July 6-8, 2005

D Gatica-Perez, J.M. Odobez, S.O. Ba, K. Smith and G. Lathoud, Tracking People in Meetings with Particles , invited paper at the Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), Montreux, Apr. 13-15, 2005

S. O. Ba and J.M. Odobez, A Probabilistic Framework for Joint Head Tracking and Pose Estimation , the International Conference on Pattern Recognition (ICPR), Cambridge, Aug. 23-26, 2004

C. Kervrann and S. O. Ba, A Non Parametric Approach for Image Restauration with Preservation of Discontinuities , 14 eme Congres Francophone de Reconnaissance de Forme et Intelligence Artificielle (RFIA), Toulouse, Jan. 28-30, 2004

J.M. Odobez, S.O.Ba and D. Gatica-Perez, An Implicit Motion Likelihood for Tracking with Particles Filters , the British Machine Vision Conference (BMVC), Norwich, Sept. 9-11, 2003