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9 January 20083D detection of obstacle distribution in walking guide system for the blind
In this paper, the concept of a walking guide system with tactile display is introduced, and experiments of 3-D obstacle
detection and tactile perception are carried out and analyzed. The algorithm of 3-D obstacle detection and the method of
mapping the generated obstacle map and the tactile display device for the walking guide system are proposed. The
experiment of the 3-D detection for the obstacle position using ultrasonic sensors is performed and estimated. Some
design guidelines for a tactile display device that can display obstacle distribution is discussed.
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Myoung-Jong Yoon, Kee-Ho Yu, "3D detection of obstacle distribution in walking guide system for the blind," Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 679428 (9 January 2008);