Human-robot interaction (HRI) plays an important role in future planetary exploration mission, where astronauts with\nextravehicular activities (EVA) have to communicate with robot assistants by speech-type or gesture-type user interfaces embedded\nin their space suits. This paper presents an interactive astronaut-robot system integrating a data-glove with a space suit for the\nastronaut to use hand gestures to control a snake-like robot. Support vector machine (SVM) is employed to recognize hand\ngestures and particle swarm optimization (PSO) algorithm is used to optimize the parameters of SVM to further improve its\nrecognition accuracy. Various hand gestures from American Sign Language (ASL) have been selected and used to test and validate\nthe performance of the proposed system.
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