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Zakia Hammal, Ph. D.
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Zakia Hammal Ph. D.

Robotics Institute, Carnegie Mellon University.

4323 Sennott Square, 210 S. Bouquet Street,

Pittsburgh, PA 15260

USA

Site(s) web

Formations

  1. PhD in Cognitive Science.
  2. Master of Artificial Intelligence and Algorithmic (specialisation: Image processing).
  3. Engineer in Computer Science (Specialisation: Computer systems).

Biographie

News:

• June-July 2012, Invited researcher to the Center for Empathic Human-Computer Interactions De La Salle University.  

• I am organising a special session on "Belief Functions for Human Behavior Analysis and Interpretation" for BELIEF2012

• Merlin Teodosia Suarez and I are organising the 1st International Workshop on "Context Based Affect Recognition CBAR2012"  (CFP SOON).

• The 2nd International Workshop on Emphatic Computing ( IWEC-11)
• The FG 2011 Facial Expression Recognition and Analysis Challenge (FERA2011)
• Moving soon to the Robotics Institute of the Carnegie Mellon University.

• Awarded an SSPNet scholarship to attend the Summer School on Affective Computing and Social Signal Processing (ACSSP10).

• Book Advances in Face Image Analysis: Techniques and Technologies, Y. Zhang (eds.).( IGI Global, 2010)

Research interests:

• Segmentation and analysis of facial features, 

• Analysis and recognition of facial expressions,

• Analysis and recognition of vocal expressions,

• Context-sensitive facial expression recognition (Pain monitoring),

• Data fusion by the Transferable Belief Model,

• Gaze direction and vigilance estimation,

• Visual Perception: Face perception and Music reading.

SKills:

• Signal processing,  Image processing,

• Classification (Neural network, HMM, Bayesian model, SVM),

• Data fusion. 

Further Activities:

  • Reviewing papers for:

   •  Program Committee Member of FERA11, IWEC-11......

Database:

Hammal-Caplier database:  21 different subjects with 3 sequences per subject (Smile, Surprise and Disgust). Each sequence is recorded during 5 seconds. For each different acquisition the subject is asked to simulate one expression beginning by the Neutral expression, evolving to the considered expression and coming back to the Neutral expression.

Ref: Hammal Z., Couvreur L., Caplier A., Rombaut M. Facial Expressions Classification: A new approach based on Transferable Belief Model.  INTERNATIONAL JOURNAL OF APPROXIMATE REASONING. 46(3):542-567, 2007).  

Contact: zakia_hammal@yahoo.fr

Publications:

PhD Thesis in Cognitive Science

  •  Zakia Hammal Facial Features Segmentation, Analysis and Recognition of Facial Expressions (PDF). (EURASIP 2006)
Book Chapters  

  • Z. Hammal and C. Massot, Gabor-like Image Filtering for Transient Feature Detection and Global Energy Estimation Applied to Multi-Expression Classification. Pages 135-153. In "Communications in Computer and Information Science" (CCIS 229)  (eds. P. Richard and J. Braz, Springer, CCIS 229, 2011) 

  • Z. Hammal. Chapter 12: From Face to Facial Expression. Pages 217-238. In "Advances in Face Image Analysis: Techniques and Technologies", Yu-Jin Zhang    (eds. IGI Global 2010).
LN Computer Science Papers  
  • Z. Hammal.  Efficient Detection of Consecutive Facial Expression Apexes Using Biologically Based Log-Normal Filters. in ADVANCES IN VISUAL COMPUTING. Lecture Notes in Computer Science, 2011, Volume 6939/2011, pages 586-595, DOI: 10.1007/978-3-642-24028-7_54  (LNCS 2011).
  • Z. Hammal Context based Recognition of Pain Expression Intensities.  The 5th Workshop on Emotion in Human-Computer Interaction - Real World Challenges -held at the 23rd BCS HCI Group conference.  Cambridge University, Cambridge, UK, September 2009. 8 Pages (Oral presentation).  ISBN 978-3-8396-0088-7,  (Fraunhofer VERLAG, 2010), 
  • Hammal Z., Massot C. Dynamic Facial Expression Classification Based on Human Visual Cues Information. Workshop series: Emotion and Computing – Current Research and Future Impact-held in the framework of the 32nd Annual Conference on
Artificial Intelligence KI 2009.  10 Pages (Oral presentation). (LNCS, 2009) 

  • Z. Hammal, A. Martin and F. Gosselin Comparing a Transferable Belief Model Capable of Recognizing Facial Expressions with the Latest Human Data. in ADVANCES IN VISUAL COMPUTING. Lecture Notes in Computer Science, 2007, Volume 4841/2007, pages 509-520, DOI: 10.1007/978-3-540-76858-6_50  (LNCS 2007)   

  • Hammal Z., Massot C., Bedoya G., Caplier A.  Eyes Segmentation Applied to Gaze Direction and Vigilance Estimation.  PATTERN RECOGNITION AND IMAGE ANALYSIS. Lecture Notes in Computer Science, 2005, Volume 3687/2005, pages 236-246, DOI: 10.1007/11552499_27(LNCS 2005). 

  • Hammal Z., Couvreur L., Caplier A., Rombaut M.  Facial Expressions Recognition Based on The Belief Theory: Comparison with Diferent Classifiers. IMAGE ANALYSIS AND PROCESSING. Lecture Notes in Computer Science, 2005, Volume 3617/2005, pages 743-752, DOI: 10.1007/11553595_91 (LNCS 2005)   

  • Hammal Z., Caplier A., Rombaut M  Belief Theory Applied to Facial Expressions Classification. PATTERN RECOGNITION AND IMAGE ANALYSIS.Lecture Notes in Computer Science, 2005, Volume 3687/2005, pages 183-191, DOI: 10.1007/11552499_21 (LNCS 2005)
Journal Papers

  • Hammal, Z., Gosselin, F., Peretz, I., & Hébert, S. Music to my eyes: Spatial frequencies mediating music reading

  • Z. Hammal.  LOG-GABOR DESCRIPTORS FOR TEMPORAL FACIAL EXPRESSION ANALYSIS: EMTIONAL SEGMENTS DETECTION AND FACIAL FEATURES EXTRACTION.
  • Z. Hammal and M. Kunz. Pain Monitoring: A Dynamic and Context-sensitive System

   Pattern Recognition, 2011. Volume 45, Issue 4, April 2012, Pages 1265-1280

   http://dx.doi.org/10.1016/j.patcog.2011.09.014

  • Hammal Z., M. Arguin, and F. Gosselin. Comparing a Novel Model Based on the Transferable Belief Model with Humans During the Recognition of Partially Occluded Facial Expressions. December 2008 (Journal of Vision), 9(2):22, 1-19, http://journalofvision.org/9/2/22/, doi:10.1167/9.2.22.   
  • Hammal Z., Couvreur L., Caplier A., Rombaut M. Facial Expressions Classification: A new approach based on Transferable Belief Model.  INTERNATIONAL JOURNAL OF APPROXIMATE REASONING (Elsevier). 46(3):542-567, 2007, [PDF].   
  • Z. Hammal, N. Eveno, A. Caplier, and P-Y Coulon  Parametric models for facial features segmentation.  (Signal processing), vol 86 , pp 399-413, 2006 [PDF].  
  •  Hammal Z., Eveno N, Caplier A., Coulon P.-Y Extraction des traits caracteristiques du visage à l'aide de modèle paramétriques adaptés. Traitement du signal (TS 2005),vol 22, num 01, pp 59-71, 2005. PDF Selected as from the best papers of  the 19ème colloque sur le traitemant du signal et des images Gretsi 2003.

Proceeding Papers
  • Hammal Z., Massot C. Holistic and Feature-Based Information Towards Dynamic Multi-Expressions Recognition. Selected as from the best papers of VISAPP 2010, to be published in the book ("Communications in Computer and Information Science" (CCIS) published by Springer-Verlag) 10 pages (LNCS: in press)
  • Z. Hammal, F. Gosselin, I.Peretz and S. Hebert. Spatial Frequencies Mediating Music Reading. Proc. Vision Science Society (VSS 2010). 7-12 May 2010 Naples Grand Hotel, Floride (JoV 2010), [PDF].

  • Z. Hammal, F. Gosselin and I. Fortin How efficient are the recognition of dynamic and static facial expressions? Proc. Vision Science Society (VSS 2009). 9-14 May 2009 Naples Grand Hotel, Floride (JoV 2009) [PDF]   

  • Z. Hammal, M. Kunz, M. Arguin, and F. Gosselin. Spontaneous Pain Expression Recognition in Video Sequences. Proc. BCS Int’l Conf. on Visions of Computer Science (BCS-Visions 2008). Imperial College London September 22-24, 2008, 20 pages (oral presentation). Selected as from the best papers of the BCS-Visions 2008.   

  • Z. Hammal, N. Tsuchiya, R. Adolphs, M. Arguin, P. G. schyns and F. Gosselin. What does the activity in the Amygdala and the Insula correlate with in fearful and disgusted faces. Proc. Vision Science Society (VSS 2008). 9-14 May 2008, Naples Grand Hotel, Floride (oral presentation) (JoV 2008)   

  • S. Roy, C. Roy, Z. Hammal, D. Fiset, C.Blais, B. Jemel, F. Gosselin. The use of Spatio-temporal Information in decoding facial expression of emotions. Proc. Vision Science Society (VSS 2008). 9-14 May 2008, Naples Grand Hotel, Floride (Poster) (JoV 2008)   

  • C. Roy, S. Roy, D. Fiset,, Z. Hammal, P. Rainvill, F. Gosselin. Recognizing static and dynamic facial expressions of Pain: Gaze-tracking and Bubbles experiments. Proc. Vision Science Society (VSS 2008). 9-14 May 2008, Naples Grand Hotel, Floride (Poster) (JoV 2008)

  • I. Buciu, Z. Hammal, A. Caplier, N. Nikolaidis and I. Pitas Enhencing Facial Expression Classification By Information Fusion. Proc. 14 th European Signal Processing Conference (Eusipco 2006), 5 pages (oral presentation).

  • Z. Hammal Dynamic facial expression understanding based on temporal modeling of transferable belief model. Proc. International conference on computer vision theory and application. (Visapp 2006).25-28 February 2006, Setubal, Portugal. PDF. 12 pages (oral presentation).

  • Hammal Z., Bozkurt B., Couvreur L., Unay D., Caplier A., Dutoit T  Passive versus Active: Vocal Classification System. Proc. 13 th European Signal Processing Conference. (EUSIPCO 2005). Turkey ,PDF, 4 pages (oral presentation).

  • Hammal Z., Caplier A., Rombaut M. A fusion process based on belief theory for classification of facial basic emotions. Proc. IEEE Fusion'2005 the 8th International Conference on Information fusion. (ICIF2005) ,PDF, 8 pages (oral presentation) (link).

  • Hammal Z., Caplier A.  Eyes and eyebrows parametric models for automatic segmentation. Proc. IEEE Southhwest Symposium on Image Analysis and Interpretation. (IEEE) (SSIAI04). Turkey ,PDF, 4 pages , oral presentation (link).

  • Hammal Z., Bozkurt B., Couvreur L., Unay D., Caplier A., Dutoit T  Classification bimodale d'expressons vocales. 20ème colloque sur le traitemant du signal et des images (Gretsi'2005), Louvain-la-Neuve , belgique, Septembre 2005.

  • Hammal Z., Caplier A., Rombaut M. Classification d'expressions faciales par la theorie de l'évidence. Rencontre Francophones sur la Logique Floue et ses Applications (LFA2004), Nantes, 18-19 Nouvembre 2004 PDF.

  • Hammal Z., Caplier A. Analyse dynamique des transformations des traits du visage lors de la production d'une emotion. Atelier sur l'analyse du geste (RFIA 2004), Toulouse, 2004 <[PDF]-
  • Hammal Z., Eveno N., Caplier A., Coulon P.-Y  Extraction réaliste des traits caractéristiques du visage à l'aide de modèles paramétriques adaptés . 19ème colloque sur le traitemant du signal et des images (Gretsi'2003), Paris, Septembre 2003 PDF

Official Seminars and Invited Talks

  • Z . Hammal, titre à venir, conférence chez Bell Canada, Montréal, 20 Septembre 2010.

  • Z . Hammal, Music to my eyes : Spatial frequencies mediating music reading, conférence aux séminaires du CERNEC, université de Montréal, 17 Septembre 2010.

  • Z . Hammal, titre à venir, Summer School on Affective Computing and Social Signal Processing (ACSSP10), 30 August to 2 September 2010, Edinburgh, UK.
  • Z. Hammal, Automatic Analysis and Interpretation of Human Facial Behavior, McGill University, 23 Juin 2010, Montréal.
  • Z. Hammal, Segmentation et Interprétation d'indices Visuels pour la Reconnaissance Séquentielle des Expressions Faciales.  Institut TELECOM -(Abstract, TELECOM ParisTech.) 27 Mai 2010, Paris, France Chez Catherine Pelachaud.
  • Z. Hammal, . The Computer Sciences Laboratory for Mechanics and Engineering Sciences (CNRS-LIMSI), 25 Mai 2010, Paris, France Chez Jean-Claude Martin.
  • Z. Hammal, F. Gosselin, I. Peretz, S. Hébert, Spatial Frequencies Mediating Music and Text Reading. BRAMS Annual Scientific Day, (BRAMS April 2010) [PDF].
  • Z. Hammal, Du visage à l'expression: segmentation et interprétation d'indices visuels pour la reconnaissance des expressions faciales.  Orateur invit au : Colloquium Statistiques pour le traitement de l'Image. 11-12 Mars 2010  Paris  [STATIM, RISC].

  • Z. Hammal, F. Gosselin, I. Peretz, S. Hébert, Spatial Frequencies Mediating Music Reading. BRAMS Annual Scientific Day, (BRAMS May 2009) [PDF].

  • Hammal Z., Arguin M., Gosselin F COMPARING A TRANSFERABLE BELIEF MODEL CAPABLE OF RECOGNIZING FACIAL EXPRESSIONS WITH HUMAN DATA La 17ième Journée Scientifique du CERNEC Plasticité et réorganisation cérébrale, (CERNEC Avril 2008)
  • Hammal Z.. (Séminaire invité, Evry), Juin 2005 
  • Hammal Z., Caplier A., Rombaut M. (Réunion Française sur les Fonctions de Croyance), Compiègne, 23-24 Mars 2005

  • Hammal Z., Caplier A., Rombaut M., Reconnaissance d'expressions faciales en utilisant la théorie de l'évidence Journée Analyse de visages (GdR ISIS 2005), Paris, 20 janvier 2005

  • Z. Hammal, N. Eveno, A. Caplier, P-Y Coulon,Journées du GDR ISIS & AS 70 du département STIC du CNRS "Perception, Modélisation et Interprétation du Geste Humain" Titre "Extraction réaliste des traits caractéristiques du visage"Grenoble, 2003