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FITG11, 22/10/2011


Durée de vie d'un geste
 Génération, Reconnaissance 
              &
       Consommation
         Mohamed­Ikbel Boulabiar
        Telecom Bretagne – ubuntu
          boulabiar@gmail.com




                                    2
Introduction
     Reconnaissance de gestes ?




Poursuite de l'interaction « Naturelle »
                                           3
Introduction
Interaction à faible coût




   PS3 Eye (<40€)
                            4
Détection des mains
●   Transformation de l'espace de couleurs




                       BGR          YCrCb




                                             5
Détection des mains
●   Extraction des couleurs de la main



       Y
      [Cr]
      [Cb]


                                         6
Détection des mains
●
    Marquage des blobs
      Linear­time component­labeling algorithm
         [Chang et al. 2004]

●
    Suivie des blobs
      Appearance models for occlusion handling
        [Senior et al. 2006]
      Implementation dans « cvblob »
        [CarneroLiñán 09]


                                                 7
Détection des mains




                    Blob
            (id, centre, contour)
                                    8
Sortie depuis le prétraitement




Fingertips                      Mouvement

             (id, centre, contour)          9
Reconnaissance de postures
●   Reconnaissance ?
    ●   Réseaux de neuronnes ?
    ●   HMM ?
    ●   SVM


●   Algorithmes géométriques
    ●   [Rubine 1991]
    ●   1$ Gesture [Wobbrock 2007]
    ●   Protractor [Li 2010]
                                       10
Reconnaissance de tracés
●
    [Rubine 1991]
●
    1$ Gesture [Wobbrock 2007]
●
    Protractor [Li 2010]




                                    11
1$ Gesture




             12
Vidéo
(or it didn't happen)




                        13
Postures + Gestures




                      14
Reconnaissance




                 15
Travail principal




Génération     Reconnaissance    Routage

                                           16
Génération du geste




                      17
Projet Rev­TV


●
    Contrôle et animation d'un Avatar

●
    Réalité augmentée pour Talk­Show




                                        18
Étude Exploratoire
                Étude des Talk­Shows

●
    Extraction des gestes

●
    Classification en familles

●
    Évaluation des difficultés



                                       19
Étude Exploratoire




                     20
Étude Bibliographique
    Basé sur Gesture&Thought [McNeill 05]

●
    Emblèmes
●
    Gestes involontaires
●
    Gestes co­verbaux
●
    Pantomimes



                                            21
Étude Bibliographique
Basée sur Gesture&Thought [McNeill 05]

●
    Emblèmes (Commande)
●
    Gestes involontaires (Animation)
●
    Gestes co­verbaux
●
    Pantomimes



                                         22
Proposition
Proposition l'utilisation de « ishara » pour la 
         représentation graphique
        CC­BY, https://github.com/boulabiar/ishara




                                                     23
Routage




          24
Routage des événements




                         25
Routage des événements




                         26
Routage des événements




                         27
Routage des événements




« Ginn »

                           28
Résumé




 « ishara »       algorithme    « Ginn »
                 géométrique
classification                  Contrôle 
                                système
                                            29
Conclusion




             30

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Durée de vie d\'un geste: Génération, Reconnaissance et Consommation