Development of vision based tactile display system using shape memory alloys

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.

[1]  Christopher R. Wagner,et al.  A tactile shape display using RC servomotors , 2002, Proceedings 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. HAPTICS 2002.

[2]  Moustapha Hafez,et al.  Tactile interfaces: technologies, applications and challenges , 2007, The Visual Computer.

[3]  Georg v. Békésy,et al.  Sensations on the Skin Similar to Directional Hearing, Beats, and Harmonics of the Ear , 1957 .

[4]  Fumihito Arai,et al.  Micro resonator using electromagnetic actuator for tactile display , 1997, 1997 International Symposium on Micromechanics and Human Science (Cat. No.97TH8311).

[5]  D. S. Alles,et al.  Information Transmission by Phantom Sensations , 1970 .

[6]  Hideyuki Sawada,et al.  Tactile information transmission by apparent movement phenomenon using shape-memory alloy device , 2006 .

[7]  Masahiko Inami,et al.  SmartTouch - augmentation of skin sensation with electrocutaneous display , 2003, 11th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2003. HAPTICS 2003. Proceedings..

[8]  Hyoukryeol Choi,et al.  Development of Soft-Actuator-Based Wearable Tactile Display , 2008, IEEE Transactions on Robotics.

[9]  Miltiadis K. Hatalis,et al.  Tactile displays: Overview and recent advances , 2008, Displays.

[10]  R. Vitushinsky,et al.  Bistable Thin-Film Shape Memory Actuators for Applications in Tactile Displays , 2009, Journal of Microelectromechanical Systems.

[11]  Christopher G. Harris,et al.  A Combined Corner and Edge Detector , 1988, Alvey Vision Conference.

[12]  Mubarak Shah,et al.  A Fast algorithm for active contours and curvature estimation , 1992, CVGIP Image Underst..

[13]  Demetri Terzopoulos,et al.  Snakes: Active contour models , 2004, International Journal of Computer Vision.