IEEE MultiMedia, January–March 2009, pp. 81–93

poster of sign language letters 

SignTutor: An Interactive System for Sign Language Tutoring

by Oya Aran, Ismail Ari, Lale Akarun, and Bülent Sankur, Alexandre Benoit, Alice Caplier, Pavel Campr, Ana Huerta Carrillo, and François-Xavier Fanarda

Sign language recognition (SLR) is a multidisciplinary research area involving pattern recognition, computer vision, natural language processing, and linguistics. The concept presents a multifaceted problem not only because of the complexity of the visual analysis of hand gestures, but also due to the highly multimodal nature of sign languages. Although sign languages are well-structured languages with a phonology, morphology, syntax, and grammar, they are different from spoken languages.

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