A Review on 3D Signing Avatars: Benefits, Uses and Challenges

Kabil Jaballah and Mohamed Jemni
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Kabil Jaballah: LaTICE research Laboratory, University of Tunis, Bab Mnara, Tunis, Tunisia
Mohamed Jemni: LaTICE research Laboratory, University of Tunis, Bab Mnara, Tunis, Tunisia

International Journal of Multimedia Data Engineering and Management (IJMDEM), 2013, vol. 4, issue 1, 21-45

Abstract: Signing avatars are becoming common thanks to their potential to improve deaf education. These 3D animated characters are able to perform manual and non-manual signs. As they tap the natural skills of deaf individuals and thanks to the advances in 3D humanoids modeling and animation technologies, 3D signing avatars are getting increasing interest. They are actually used for multiple purposes in multiple fields. Deaf parents, teacher, telecommunications’ companies and many other agencies are involving in this area for different reasons. In this paper, the authors report the state of the art in signing avatars research and development as well as the purposes for which 3D signing characters are being used. They discussed the methods and the technologies adopted to create 3D signed contents. A case study of five 3D Sign Language generation systems will be highlighted. The authors will consider their architectures, linguistic representations, the modeling and the animation techniques that have been undertaken. They conducted a study to compare the performance of the available systems regarding the understandability of the generated signed contents. By the end of the survey, the authors bring the lessons learned from this study.

Date: 2013
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