15 November 2010 Invisible code display for robots' eye communication using polarization control by LCD panel
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Abstract
An invisible code is one of the useful technologies for a computer interaction. In this paper, we propose a method to display invisible codes using LCD panels and to detect a polarized symbol image with a conventional CCD camera. The authors have been developing the mobile robots which can cooperation between robots. The robots should communicate with each other in order to cooperate together. Therefore, the communication between robots is very important problem to be solved. These robots generally utilize wireless transmission system. The transmission sets send and receive on the same frequency or channel to establish the radio communication. This is called working simplex. The robots cannot start communication if both sets use different frequency channels. It is important to perform an initial configuration for establishing the radio signal transmission at a first contact among strange mobile robots. To solve this problem, this paper describes an information transmission system using an invisible code on displays which show an expression of robot's eyes.
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Kunio Sakamoto, Takeru Furukawa, "Invisible code display for robots' eye communication using polarization control by LCD panel", Proc. SPIE 7852, LED and Display Technologies, 78520V (15 November 2010); doi: 10.1117/12.869452; https://doi.org/10.1117/12.869452
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