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Métaphore d’interaction gestuelle en environnement virtuel : application à l’apprentissage de gestes

Abstract : In the light of our work, we were interested in precise gesture learning in virtual environment. In these environments, learners can train in safer and longer training sessions than in real environments, using augmented feedback that wouldn’t be available otherwise—such as a 3D trace of canonical movements or the opportunity to see your gesture from a different point of view. However, in the context of gesture guidance, most of the usual visual metaphors do not tackle the dependency they generate. The guidance hypothesis, from motor learning theories, states that the continuous use of feedback during early phases of learning leads to a dependency on the feedback. Learners are no longer able to properly reproduce the requested gesture or task without the help of this feedback. However, in virtual environments the use of augmented feedback remains necessary for training. To deal with this issue, we propose a new dynamic metaphor for 3D interaction in virtual environments, based on the visual modality. Our approach is focus users’ training on their intrinsic feedback, by using a trial-and-error strategy. Our metaphor shows users’ trajectory errors in real time, implicitly spurring them to correct these errors. We assume that when the metaphor is no longer visible, learners are able to properly reproduce the gesture using their past experiences. We conducted a first experiment to evaluate the capacity of our metaphor to properly guide learners during gesture training. Then, a second experiment showed that the metaphor allowed learners to improve their performance and that it further reduced the dependency than usual guiding metaphors.
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Submitted on : Tuesday, April 17, 2018 - 2:19:06 PM
Last modification on : Tuesday, November 16, 2021 - 4:30:36 AM


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  • HAL Id : tel-01768757, version 1



Florian Jeanne. Métaphore d’interaction gestuelle en environnement virtuel : application à l’apprentissage de gestes. Autre [cs.OH]. Université de Technologie de Compiègne, 2017. Français. ⟨NNT : 2017COMP2398⟩. ⟨tel-01768757⟩



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