한국방송∙미디어공학회:학술대회논문집 (Proceedings of the Korean Society of Broadcast Engineers Conference)
- 한국방송공학회 2009년도 IWAIT
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- Pages.476-481
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- 2009
DETECTING A LED TRAFFIC LIGHT FOR VISIBLE LIGHT COMMUNICATION SYSTEM
- Premachandra, H.Chinthaka N. (Graduate School of Engineering, Nagoya University) ;
- Yendo, Tomohiro (Graduate School of Engineering, Nagoya University) ;
- Yamasato, Takaya (Graduate School of Engineering, Nagoya University) ;
- Fujii, Toshiaki (Graduate School of Science and Engineering, Tokyo Institute of Technology) ;
- Tanimoto, Masayuki (Graduate School of Engineering, Nagoya University) ;
- Kimura, Yoshikatsu (ToyotaCentral R & D Labs., Inc.)
- 발행 : 2009.01.12
초록
In this paper, we propose a visible light road-to-vehicle communication system at intersection as one of ITS technique. In this system, the communication between vehicle and a LED traffic light is approached using LED traffic light as the transmitter, and on-vehicle high-speed camera as the receiver. The LEDs in the transmitter are emitted with 500Hz and those emitting LEDs are captured by a high-speed camera for making communication. The images from the high-speed camera are processed to get luminance value of each LED in the transmitter. For this purpose, first transmitter should be found, then it should be tracked for each frame, and the luminance value of each LED in the transmitter should be captured. In our previous work, transmitter was found by getting the subtraction of two consecutive frames. In this paper, we mainly introduce an algorithm to detect the found transmitter in consecutive frames. Experimental results using appropriate images showed the effectiveness of the proposal