In this paper, an innovative vision based tactile display system is presented. Using web camera to get visual information, the developed system captures the shape of an object and transform it to tactile sensation. In order to let people sense the shape of the captured object, tactile display panel is designed with 25 pin-type actuators to provide stimulation sources by using shape memory alloys. By employing higher-level perception, tactile display panel can represent the shape of the captured object. The effectiveness of the developed vision based tactile display system is verified by experiments.
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