France (3) Vision (3) Video recordings (3) Signs and symbols (3) Sign language (3) Science (3) Intellect (3) Processing (3) France (3) science (2) recherche (2) traitement (2) traitement de l'image (2) reconnaissance de formes (2) Communication (2) Signs and signboards (2) Research (2) Pattern perception (2) Learning (2) Image processing (2) Comprehension (2) Buildings (2) Knowledge and learning (2) French Sign Language (2) Research (2) Languages (2) Science (2) Automatic control (2) Grabaciones en vídeo (2) Information (2)